2023

A. Sahay, A. Kushwaha, S. A. Pawar, P. R. Midhun, J. M. Dhadphale, R. I. Sujith (2023) “Mitigation of limit cycle oscillations in a turbulent thermoacoustic system via delayed acoustic self-feedback”, Chaos.

S. Singh, A. K. Dutta, J. M. Dhadphale, A. Roy, R. I. Sujith, S. Chaudhuri (2023) “Mean-field model of synchronization for open-loop, swirl controlled thermoacoustic system”, Chaos.

S. Tandon, R. I. Sujith(2023) “Multilayer network analysis to study complex inter-subsystem interactions in a turbulent thermoacoustic system”, arXiv(In Press).

A. Sahay, A. Kushwaha, S. A. Pawar, J. M. Dhadphale & R. I. Sujith (2022) "Mitigation of thermoacoustic instability in a turbulent combustor via self-coupling"", Chaos.

Y. Weng, V. R. Unni, R. I. Sujith, A. Saha (2023) "Synchronization-based model for turbulent thermoacoustic systems", Nonlinear Dynamics.

A. Roy, J. R. Picardo, B. Emerson, T. C. Lieuwen, R. I. Sujith (2023) "Small-scale intermittency of premixed turbulent flames" ,Journal of Fluid Mechanics.

M. Raghunathan, N. B. George, V. R. Unni, J. Kurths, E. Surovyatkina, R. I. Sujith (2023) "Inhibiting the onset of thermoacoustic instability through targeted control of critical regions" ,International Journal of Spray and Combustion Dynamics, 1-13.

De, S., Gupta, S., Unni, V. R., Ravindran, R., Kasthuri, P., Marwan, N., Kurths, J. &  Sujith, R. I. (2023) "Study of interaction and complete merging of binary cyclones using complex networks" ,Chaos: An Interdisciplinary Journal of Nonlinear Science, 33 (1) , p.013129.

2022

Shri Vignesh K, Tandon S, Kasthuri P, Sujith RI. (2022) "A complex network framework for studying particle-laden flows." ,Physics of Fluids 34, 073321 (2022).

Pavithran, I. & Sujith, R.I. (2022) "Extreme COVID-19 waves reveal hyperexponential growth and finite-time singularity" ,Chaos,32,041104.

Raghunathan, M., George, N. B., Unni, V. R., Sujith, R. I.,Kurths, J. & Surovyatkina, E.(2022) "Seeds of phase transition to thermoacoustic instability" ,New J. Phys. 24 063008.

George, N. B., Raghunathan, R., Unni, V. R., Sujith, R.I., Kurths, J. & Surovyatkina, E.(2022) "Preventing a global transition to thermoacoustic instability by targeting local dynamics" ,Scientific Reports,12(1), 1-11.

Srikanth, S., Pawar, S.A., Manoj, K. & Sujith, R.I. (2022) "Dynamical States and Bifurcations in Coupled Thermoacoustic Oscillators" , Chaos 32, 073129 (2022).

Rywik, M., Kasthuri, P., Chterev, I., Boxx, I. & Sujith, R.I. (2022) "Turbulence and Heat Release Rate Network Structure in Hydrogen-enriched Combustion" Preceedings of the Combustion Institute.

Manoj, K., Pawar, S.A., Kurths, J. & Sujith, R.I. (2022) "Rijke tube: A nonlinear oscillator" ,Chaos 32, 072101 (2022).

Kasthuri, P., Krishnan, A., Gejji, R., Anderson, W., Marwan, N., Kurths, J. & Sujith, R.I. (2022) "Investigation into the coherence of flame intensity oscillations in a model multi-element rocket combustor using complex networks" , Physics of Fluids, 34, 034107.

Kasthuri, P., Pawar, S.A., Gejji, R., Anderson, W. & Sujith, R.I. (2022) "Coupled interaction between acoustics and unsteady flame dynamics during the transition to thermoacoustic instability in a multi-element rocket combustor."

Bedard, M.J., Gejji, R., Anderson, W.E., Austin, B.L., Kasthuri, P. & Sujith, R.I. (2022) "Detailed measurement of ORSC main chamber injector dynamics in a model rocket combustor" , AIAA Journal, 60 (2), 1211-1226.

Kraemer, H., Gelbrecht, M., Pavithran, I., Marwan, N. & Sujith, R.I. (2022) "Optimal State Space Reconstruction via Monte Carlo Decision Tree Search" , Nonlinear Dynamics.

Dhadphale, J., Unni, V. R., Saha, A. & Sujith, R. I. (2022) "Neural ODE to model and prognose thermoacoustic instability" , Chaos: An Interdisciplinary Journal of Nonlinear Science, 32, 013131.

Ghosh, A., Pawar, S. A., & Sujith, R. I. (2022) "Anticipating synchrony in dynamical systems using information theory" , Chaos, 32,031103.

2021

Bury, T.M, Sujith, R.I., Pavithran, I., Scheffer, M., Lenton, T.M., Anand, M. & Bauch, C.T. (2021) "Deep learning for early warning signals of regime shifts" ,Proceedings of the National Academy of Sciences of the United States of America (PNAS),118(39)e2106140118.

Aguilar Ruiz, E., Pavithran, I., Unni, V.R., Sujith, R.I. & Saha, A. (2021) "Convolutional neural networks to predict the onset of oscillatory instabilities in turbulent systems" ,Chaos, 31, 093131.

Pavithran, I., Unni, V.R. & Sujith, R.I. (2021) "Critical transitions and their early warning systems in thermoacoustic systems, Invited Review" ,The European Physical Journal Special Topics, 230, 3411-3432.

Premraj, D., Suresh, K., Pawar, S. A., Kibiraj, L., Prasad, A. & Sujith, R. I. (2021) "Dragon-king extreme events as precursors for catastrophic transition." EPL(Europhysics Letter), 134, 34006.

Pavithran, I., Unni, V. R., Saha, A., Varghese, A. J., Sujith, R. I., Marwan, N. & Kurths, J. (2021) "Predicting the amplitude of thermoacoustic instability using universal scaling behaviour." , ASME Journal of Engineering for Gas Turbines and Power, In Press.

Kushwaha, A., Kasthuri, P., Pawar, S. A., Sujith, R. I., Chterev, I. & Boxx, I.(2021) "Dynamical characterization of thermoacoustic oscillations in a hydrogen-enriched partially premixed swirl-stabilized methane/air combustor." ASME Journal of Gas Turbines and Power, 143(12):121022, GTP-21-1335.

Tandon, S. & Sujith, R. I. (2021) "Condensation in the phase space and network topology during transition from chaos to order in turbulent thermoacoustic systems." ,Chaos: An Interdisciplinary Journal of Nonlinear Science, 31, 043126.

Sahay, A., Roy, A., Pawar, S. A. & Sujith, R. I. (2021) "Dynamics of coupled thermoacoustic oscillators under asymmetric forcing." Physical Review Applied, 15, 044011.

Varghese, A., Chechkin, A., Metzler, R. & Sujith, R. I. (2021) "Capturing multifractality of pressure fluctuations in thermoacoustic systems using fractional-order derivatives." Chaos: An Interdisciplinary Journal of Nonlinear Science, 31, 033108.

Manoj, K., Pawar, S. A. & Sujith, R. I. (2021) "Experimental investigation on the susceptibility of minimal networks to a change in topology and number of oscillators." ,Physical Review E, 103, 022207.

Premraj, D., Manoj, K., Pawar, S. A. & Sujith, R. I. (2021) "Effect of amplitude and frequency of limit cycle oscillators on their coupled and forced dynamics." ,Nonlinear Dynamics, 103 (2), 1439-1452.

Roy, A., Premchand, C. P., Raghunathan, M., Krishnan, A., Nair, V. & Sujith, R. I. (2021) "Critical region in the spatiotemporal dynamics of a turbulent thermoacoustic system and smart passive control." ,Combustion and Flame, 226, 274 - 284.

Roy, A. & Sujith, R. I. (2021) "Fractal dimension of premixed flames in intermittent turbulence." ,Combustion and Flame, 226, 412 - 418.

Pavithran, I. & Sujith, R. I. (2021) "Effect of rate of change of parameter on early warning signals for critical transitions." ,Chaos: An Interdisciplinary Journal of Nonlinear Science, 31, 013116.

Sujith, R. I. & Unni, V. R. (2021) "Dynamical systems and complex systems theory to study unsteady combustion." ,Proceedings of the Combustion Institute, 38(3), 3445-3462.

Roy, A., Singh, S.,Reeja, K.V., Nair, A., Chaudhury, S. & Sujith, R. I. (2021) "Flame dynamics during intermittency and secondary bifurcation to longitudinal thermoacoustic instability in a swirl-stabilized annular combustor." ,Proceedings of the Combustion Institute, 38(4), 6221-6230.

Singh, S., Roy, A., Reeja, K. V., Nair, A., Chaudhury, S. & Sujith, R. I. (2021) "Intermittency, secondary bifurcation and mixed-mode oscillations in a swirl-stabilized annular combustor." ,ASME Journal of Gas Turbines and Power, 143(5), 051028.

Pawar, S. A., Raghunathan, M., Reeja, K. V., Midhun, P. R. & Sujith, R. I. (2021) "Effect of preheating of the reactants on the transition to thermoacoustic instability in a bluff-body stabilized dump combustor." ,Proceedings of the Combustion Institute, 38(4), 6193-6201.

Braun, T., Unni, V., Sujith, R. I., Kurths, J. & Marwan, N. (2021) "Detection of Dynamical Regime Transitions with Lacunarity as a Multiscale Recurrence Quantification Measure." ,Nonlinear Dynamics, In Press.

Krishnan, A., Sujith, R. I. & Marwan, N. (2021) "Suppression of thermoacoustic instability by targeting the hubs of the turbulent networks in a bluff-body stabilized combustor." Journal of Fluid Mechanics, 916, A20.

2020

Sujith, R. I. & Unni, V. R. (2020) "Complex system approach to investigate and mitigate thermoacoustic instability in turbulent combustors." ,Physics of Fluids, 32, 061401.

Pavithran, I., Unni, V. R., Varghese, A. J., Premraj, D., Sujith, R. I., Vijayan, C., Saha, A., Marwan, N. & Kurths, J. (2020) "Universality in spectral condensation." Scientific Reports(Nature), 10, 17405.

Pavithran, I., Unni, V. R., Varghese, A. J., Sujith, R. I., Saha, A., Marwan, N. & Kurths, J. (2020) "Universality in the emergence of oscillatory instabilities in turbulent flows." ,EPL(Europhysics Letter), 129, 24004.

Godavarthi, V., Kasthuri, P., Mondal, S., Sujith, R. I., Marwan, N., & Kurths, J. (2020) "Synchronization transition from chaos to limit cycle oscillations when a locally coupled chaotic oscillator grid is coupled globally to another chaotic oscillator." ,Chaos: An Interdisciplinary Journal of Nonlinear Science, 30(3), 033121.

Premraj, D., Pawar, S. A., Kibiraj, L., & Sujith, R. I. (2020) "Strange nonchaos in self-excited singing flames." EPL (Europhysics Letter), 128, 54005.

Tandon, S., Pawar, S. A., Banerjee, S., Varghese, A. J., Premraj, D., & Sujith, R. I. (2020) "Bursting during intermittency route to thermoacoustic instability: Effects of slow-fast dynamics." Chaos: An Interdisciplinary Journal of Nonlinear Science, 30, 103112.

Raghunathan, M., George, N. B., Unni, V. R., Midhun, P. R., Reeja, K. V., & Sujith, R. I. (2020) "Multifractal analysis of flame dynamics during transition to thermoacoustic instability in a turbulent combustor." Journal of Fluid Mechanics, 888, A14.

Premchand, C. P., George, N. B., Raghunathan, M., Unni, V. R., Sujith, R. I., & Nair, V. (2020) "Lagrangian analysis of flame dynamics in the flow field of a bluff body-stabilized combustor." " Journal of Engineering Gas Turbines Power, 142(1), 011015.

Roy, A., Mondal, S., Pawar, S. A., & Sujith, R. I. (2020) "On the mechanism of open-loop control of thermoacoustic instability in a laminar premixed combustor." ,Journal of Fluid Mechanics, 884.

Weng, Y., Unni, V. R., Sujith, R. I., & Saha, A. (2020) "Synchronization framework for modeling transition to thermoacoustic instability in laminar combustors." Nonlinear Dynamics, 100, 3295-3306.

Manikandan, S., & Sujith, R.I. (2020) "Rate dependent transition to thermoacoustic instability via intermittency in a turbulent afterburner. Experimental Thermal and Fluid Science, 114, 110046.

Kasthuri, P., Pavithran, I., Krishnan, A., Pawar, S., Sujith, R. I., Gejji, R., Anderson, W., Marwan, N., & Kurths, J. (2020) "Recurrence analysis of slow–fast systems." Chaos: An Interdisciplinary Journal of Nonlinear Science, 30, 063152.

Ghosh, A., & Sujith, R. I. (2020) "Emergence of order from chaos: A phenomenological model of coupled oscillators." Chaos, Solitons & Fractals, 110334.

2019

Manoj, K., Pawar, S. A., Dange, S., Mondal, S., Sujith, R. I., Surovyatkina, E., & Kurths, J. (2019) "Synchronization route to weak chimera in four candle-flame oscillators." Physical Review E, 100, 062204.

Krishnan, A., Raghunathan, M., Midhun, P. R., Reeja, K. V., Unni, V. R., R. I., Sujith, R. I., Marwan, N., & Kurths, J. (2019) "Mitigation of oscillatory instability in turbulent reactive flows: A novel approach using complex networks." EPL(Europhysics Letter), 128, 1.

Godavarthi, V., Dhivyaraja, K., Sujith, R. I., Panchagnula, M. V. (2019) "Analysis and classifcation of droplet characteristics from atomizers using multifractal analysis." Scientific Reports, 9, 16218.

Kasthuri, P., Pavithran, I., Pawar, S. A., Sujith, R. I., Gejji, R., & Anderson, W. (2019) "Dynamical systems approach to study thermoacoustic transition in a liquid rocket combustor." Chaos: An Interdisciplinary Journal of Nonlinear Science 29, 103115.

Dange, S., Manoj, K., Banerjee, S., Pawar, S. A., Mondal, S., & Sujith, R. I. (2019) "Oscillation quenching and phase-flip bifurcation in coupled thermoacoustic systems." Chaos: An Interdisciplinary Journal of Nonlinear Science, 29, 093135.

Krishnan, A., Sujith, R. I., Marwan, N., & Kurths, J. (2019) "On the emergence of large clusters of acoustic power sources at the onset of thermoacoustic instability in a turbulent combustor." Journal of Fluid Mechanics, 874, 455-482.

Kamin, M., Mathew, J., & Sujith, R.I. (2019) "A numerical study of an acoustic–hydrodynamic system exhibiting an intermittent prelude to instability." International Journal of Aeroacoustics, 1-18.

Roy, A., & Sujith, R. I. (2019) "Nonlinear flame response dependencies of a V-flame subjected to harmonic forcing and turbulence." Combustion and Flame, 207, 101-119.

Kasthuri, P., Unni, V. R., & Sujith, R. I. (2019) "Bursting and mixed mode oscillations during the transition to limit cycle oscillations in a matrix burner." Chaos: An Interdisciplinary Journal of Nonlinear Science, 29(4), 043117.

Unni, V. R., Gopalakrishnan, E. A., Syamkumar, K. S., Sujith, R. I., Surovyatkina, E., & Kurths, J. (2019) "Interplay between random fluctuations and rate dependent phenomena at slow passage to limit-cycle oscillations in a bistable thermoacoustic system." Chaos: An Interdisciplinary Journal of Nonlinear Science, 29, 031102.

Premchand, C. P., George, N. B., Raghunathan, M., Unni, V. R., Sujith, R. I., & Nair, V. (2019) "Lagrangian analysis of intermittent sound sources in the flow-field of a bluff-body stabilized combustor." Physics of Fluids, 31(2), 025115.

Mondal, S., Pawar, S. A., & Sujith, R. I. (2019) " Forced synchronization and asynchronous quenching of periodic oscillations in a thermoacoustic system." Journal of Fluid Mechanics, 864, 73-96.

Dange, S., Pawar, S. A., Manoj, K., & Sujith, R. I. (2019) "Role of buoyancy-driven vortices in inducing different modes of coupled behaviour in candle-flame oscillators." AIP Advances, 9(1), 015119..

Pawar, S. A., Panchagnula, M. V., & Sujith, R. I. (2019) "Phase synchronization and collective interaction of multiple flamelets in a laboratory scale spray combustor.." Proceedings of the Combustion Institute, 37, 5121-5128.

Pawar, S. A., Mondal, S., George, N. B., & Sujith, R. I. (2019) "Temporal and spatiotemporal analyses of synchronization transition in a swirl-Stabilized combustor." AIAA Journal, 57(2), 836-847.

2018

• Juniper, M. P., & Sujith, R. I. (2018) "Sensitivity and nonlinearity of thermoacoustic oscillations." Annual Review of Fluid Mechanics, 50, 661-689.


• Godavarthi, V., Pawar, S. A., Unni, V. R., Marwan, N., Kurths J., & Sujith, R. I. (2018) "Coupled interaction between unsteady flame dynamics and acoustic field in a turbulent combustor." Chaos: An Interdisciplinary Journal of Nonlinear Science, 28, 113111.


• Thomas, N., Mondal, S.,Pawar S. A., & Sujith R. I. (2018) "Effect of noise amplification during the transition to amplitude death in coupled thermoacoustic oscillators." Chaos: An Interdisciplinary Journal of Nonlinear Science, 28, 093116.


• Seshadri, A., Pavithran, I., Unni, V. R., & Sujith, R. I. (2018) "Predicting the Amplitude of Limit-Cycle Oscillations in Thermoacoustic Systems with Vortex Shedding." AIAA Journal, 56(9), 3507-3514.


• Manoj, K., Pawar, S. A., & Sujith, R. I. (2018) "Experimental Evidence of Amplitude Death and Phase-Flip Bifurcation between In-Phase and Anti-Phase Synchronization." Scientific reports, 8(1), 11626.


• Unni, V. R., Krishnan, A., Manikandan, R., George, N. B., Sujith, R. I., Marwan, N., & Kurths, J. (2018) "On the emergence of critical regions at the onset of thermoacoustic instability in a turbulent combustor." Chaos: An Interdisciplinary Journal of Nonlinear Science, 28(6), 063125.


• George, N. B., Unni, V. R., Raghunathan, M., & Sujith, R. I. (2018) "Pattern formation during transition from combustion noise to thermoacoustic instability via intermittency." Journal of Fluid Mechanics, 849, 615-644.


• Pawar, S. A., & Sujith, R. I. (2018) "Transition to Thermoacoustic Instability in a Turbulent Combustor." Journal of the Combustion Society of Japan, 60(192), 99-111.


• Thomas, N., Mondal, S., Pawar, S. A., & Sujith, R. I. (2018) "Effect of time-delay and dissipative coupling on amplitude death in coupled thermoacoustic oscillators." Chaos: An Interdisciplinary Journal of Nonlinear Science, 28(3), 033119.


• Pawar, S. A., Sujith, R. I., Emerson, B., & Lieuwen, T. (2018) "Characterization of forced response of density stratified reacting wake." Chaos: An Interdisciplinary Journal of Nonlinear Science, 28(2), 023108.


• George, N. B., Unni, V. R., Raghunathan, M., & Sujith, R. I. (2018) "Spatiotemporal dynamics during the transition to thermoacoustic instability: Effect of varying turbulence intensities." International Journal of Spray and Combustion Dynamics, 1756827717750073.


• Murugesan, M., & Sujith, R. I. (2018) "Physical mechanisms that cause intermittency that presages combustion instability and blowout in a turbulent lifted jet flame combustor." Combustion Science and Technology, 190(2), 312-335.

2017

• Tony, J., Subarna, S., Syamkumar, K. S., Sudha, G., Akshay, S., Gopalakrishnan, E. A., Surovyatkina, E., & Sujith, R. I. (2017) "Experimental investigation on preconditioned rate induced tipping in a thermoacoustic system." Scientific Reports 7, no. 1 (2017): 5414.


• Mondal, S., Unni, V. R., & Sujith, R. I. (2017) "Onset of thermoacoustic instability in turbulent combustors: an emergence of synchronized periodicity through formation of chimera-like states." Journal of Fluid Mechanics, 811, 659-681.


• Pawar, S. A., Seshadri, A., Unni, V. R., & Sujith, R. I. (2017) "Thermoacoustic instability as mutual synchronization between the acoustic field of the confinement and turbulent reactive flow." Journal of Fluid Mechanics, 827, 664-693.


• Mondal, S., Pawar, S. A., & Sujith, R. I. (2017) "Synchronous behaviour of two interacting oscillatory systems undergoing quasiperiodic route to chaos." Chaos: An Interdisciplinary Journal of Nonlinear Science, 27(10), 103119.


• Godavarthi, V., Unni, V. R., Gopalakrishnan, E. A., & Sujith, R. I. (2017) "Recurrence networks to study dynamical transitions in a turbulent combustor." Chaos: An Interdisciplinary Journal of Nonlinear Science, 27(6), 063113.


• Pulikkottil, V. V., & Sujith, R. I. (2017) "Acoustic-hydrodynamic-flame coupling—A new perspective for zero and low Mach number flows." Physics of Fluids, 29(4), 046102.


• Singh, J., Belur Vishwanath, R., Chaudhuri, S., & Sujith, R. I. (2017) "Network structure of turbulent premixed flames." Chaos: An Interdisciplinary Journal of Nonlinear Science, 27(4), 043107.


• Etikyala, S., & Sujith, R. I. (2017) "Change of criticality in a prototypical thermoacoustic system." Chaos: An Interdisciplinary Journal of Nonlinear Science, 27(2), 023106.


• Blumenthal, R. S., Tangirala, A. K., Sujith, R. I., & Polifke, W. (2017) "A systems perspective on non-normality in low-order thermoacoustic models: Full norms, semi-norms and transient growth." International Journal of Spray and Combustion Dynamics, 9(1), 19-43.


• Venkatramani, J., Nair, V., Sujith, R. I., Gupta, S., & Sarkar, S. (2017) "Multi-fractality in aeroelastic response as a precursor to flutter." Journal of Sound and Vibration, 386, 390-406.


• Unni, V. R., & Sujith, R. I. (2017) "Flame dynamics during intermittency in a turbulent combustor." Proceedings of the Combustion Institute, 36(3), 3791-3798.


• Jaensch, S., Merk, M., Gopalakrishnan, E. A., Bomberg, S., Emmert, T., Sujith, R. I., & Polifke, W. (2017) "Hybrid CFD/low-order modeling of nonlinear thermoacoustic oscillations." Proceedings of the Combustion Institute, 36(3), 3827-3834.

2016

• Gopalakrishnan, E. A., Sharma, Y., John, T., Dutta, P. S., & Sujith, R. I. (2016) "Early warning signals for critical transitions in a thermoacoustic system." Scientific reports, 6, 35310.


• Suresha, S., Sujith, R. I., Emerson, B., & Lieuwen, T. (2016) "Nonlinear dynamics and intermittency in a turbulent reacting wake with density ratio as bifurcation parameter." Physical Review E, 94(4), 042206.


• Gopalakrishnan, E. A., Tony, J., Sreelekha, E., & Sujith, R. I. (2016) "Stochastic bifurcations in a prototypical thermoacoustic system." Physical Review E, 94(2), 022203.


• Seshadri, A., & Sujith, R. I. (2016) "A bifurcation giving birth to order in an impulsively driven complex system." Chaos: An Interdisciplinary Journal of Nonlinear Science, 26(8), 083103.


• Agarwal, H., Unni, V. R., Akhil, K. T., Ravi, N. T., Iqbal, S. M., Sujith, R. I., & Pesala, B. (2016) "Compact standing wave thermoacoustic generator for power conversion applications." Applied Acoustics, 110, 110-118.


• Seshadri, A., Nair, V., & Sujith, R. I. (2016) "A reduced-order deterministic model describing an intermittency route to combustion instability." Combustion Theory and Modelling, 20(3), 441-456.


• Sujith, R. I., Juniper, M. P., & Schmid, P. J. (2016) " Non-normality and nonlinearity in thermoacoustic instabilities." International Journal of Spray and Combustion Dynamics, 8(2), 119-146.


• Murugesan, M., & Sujith, R. I. (2016) "Detecting the onset of an impending thermoacoustic instability using complex networks." Journal of Propulsion and Power, 32(1), 707-712.


• Venkatramani, J., Nair, V., Sujith, R. I., Gupta, S., & Sarkar, S. (2016) "Precursors to flutter instability by an intermittency route: a model free approach." Journal of Fluids and Structures, 61, 376-391.


• Nair, V., & Sujith, R. I. (2016) "Precursors to self-sustained oscillations in aeroacoustic systems." International Journal of Aeroacoustics, 15(3), 312-323.


• Pawar, S. A., Vishnu, R., Vadivukkarasan, M., Panchagnula, M. V., & Sujith, R. I. (2016) "Intermittency route to combustion instability in a laboratory spray combustor." Journal of Engineering for Gas Turbines and Power, 138(4), 041505.


• Kabiraj, L., Saurabh, A., Nawroth, H., Paschereit, C. O., Sujith, R. I., & Karimi, N. (2016) "Recurrence Plots for the Analysis of Combustion Dynamics." In Recurrence Plots and Their Quantifications: Expanding Horizons (pp. 321-339). Springer, Cham.

2015

• Tony, J., Gopalakrishnan, E. A., Sreelekha, E., & Sujith, R. I. (2015) "Detecting deterministic nature of pressure measurements from a turbulent combustor." Physical Review E, 92(6), 062902.


• Unni, V. R., & Sujith, R. I. (2015) "Multifractal characteristics of combustor dynamics close to lean blowout." Journal of Fluid Mechanics, 784, 30-50.


• Gopalakrishnan, E. A., & Sujith, R. I. (2015) "Effect of external noise on the hysteresis characteristics of a thermoacoustic system." Journal of Fluid Mechanics, 776, 334-353.


• Murugesan, M., & Sujith, R. I. (2015) " Combustion noise is scale-free: transition from scale-free to order at the onset of thermoacoustic instability." Journal of Fluid Mechanics, 772, 225-245.


• Vishnu, R., Sujith, R. I., & Aghalayam, P. (2015) "Role of flame dynamics on the bifurcation characteristics of a ducted V-flame." Combustion Science and Technology, 187(6), 894-905.


• Unni, V. R., Prasaad, Y. M., Ravi, N. T., Iqbal, S. M., Pesala, B., & Sujith, R. I. (2015) "Experimental investigation of bifurcations in a thermoacoustic engine." International Journal of Spray and Combustion Dynamics, 7(2), 113-129.


• Subramanian, P., Blumenthal, R. S., Polifke, W., & Sujith, R. I. (2015) "Distributed time lag response functions for the modelling of combustion dynamics." Combustion Theory and Modelling, 19(2), 223-237.


• Nair, V., & Sujith, R. I. (2015) " reduced-order model for the onset of combustion instability: physical mechanisms for intermittency and precursors." Proceedings of the Combustion Institute, 35(3), 3193-3200.


• Unni, V. R., Mukhopadhyay, A., & Sujith, R. I. (2015) "Online detection of impending instability in a combustion system using tools from symbolic time series analysis." International Journal of Spray and Combustion Dynamics, 7(3), 243-255.


• Mariappan, S., Sujith, R. I., & Schmid, P. J. (2015) "Experimental investigation of non-normality of thermoacoustic interaction in an electrically heated Rijke tube." International Journal of Spray and Combustion Dynamics, 7(4), 315-352.


• Thampi, G., & Sujith, R. I. (2015) "Intermittent Burst Oscillations: Signature Prior to Flame Blowout in a Turbulent Swirl-Stabilized Combustor." Journal of Propulsion and Power, 31(6), 1661-1671.


• Pulikkottil, V. V., & Sujith, R. I. (2015) " Instability mechanisms in a low-Mach-number reacting flow from coupled convection-reaction-diffusion equations." Physics of Fluids, 27(7), 074101.


• Nair, V., & Sujith, R. I. (2015) "Intermittency as a transition state in combustor dynamics: An explanation for flame dynamics near lean blowout." Combustion Science and Technology, 187(11), 1821-1835.


• Rana, S. C., & Sujith, R. (2015) "Bifurcation characteristics and flame dynamics of a ducted non-premixed flame with finite rate chemistry." Combustion Theory and Modelling, 19(5), 602-627.

2014

• Murugesan, M., Sujith, R., I., (2014) "Threshold grouping method to derive complex networks from time series." Journal of Network and Complex systems 4 (7), 17-23


• Nair, V., & Sujith, R. I. (2014) "Multifractality in combustion noise: predicting an impending combustion instability." Journal of Fluid Mechanics, 747, 635-655.


• Gopalakrishnan, E. A., & Sujith, R. I. (2014) "Influence of system parameters on the hysteresis characteristics of a horizontal Rijke tube." International Journal of Spray and Combustion Dynamics, 6(3), 293-316.


• Nair, V., Thampi, G., & Sujith, R. I. (2014) " Intermittency route to thermoacoustic instability in turbulent combustors." Journal of Fluid Mechanics, 756, 470-487.

2013

• Agharkar, P., Subramanian, P., Kaisare, N. S., & Sujith, R. I. (2013) "Thermoacoustic instabilities in a ducted premixed flame: Reduced-order models and control." Combustion Science and Technology, 185(6), 920-942.


• Blumenthal, R. S., Subramanian, P., Sujith, R. I., & Polifke, W. (2013) "Novel perspectives on the dynamics of premixed flames." Combustion and Flame, 160(7), 1215-1224.


• Nair, V., Thampi, G., Karuppusamy, S., Gopalan, S., & Sujith, R. I. (2013) "Loss of chaos in combustion noise as a precursor of impending combustion instability." International journal of spray and combustion dynamics, 5(4), 273-290.


• Nair, V., & Sujith, R. I. (2013) "Identifying homoclinic orbits in the dynamics of intermittent signals through recurrence quantification." Chaos: An Interdisciplinary Journal of Nonlinear Science, 23(3), 033136.


• Nair, V., Sarkar, S., & Sujith, R. I. (2013) " Uncertainty quantification of subcritical bifurcations." Probabilistic Engineering Mechanics, 34, 177-188.


• Jegadeesan, V., & Sujith, R. I. (2013) " Experimental investigation of noise induced triggering in thermoacoustic systems." Proceedings of the Combustion Institute, 34(2), 3175-3183.


• Subramanian, P., Sujith, R. I., & Wahi, P. (2013) "Subcritical bifurcation and bistability in thermoacoustic systems." Journal of Fluid Mechanics, 715, 210-238.

2012

• Kabiraj, L., Sujith, R. I., & Wahi, P. (2012) "Bifurcations of self-excited ducted laminar premixed flames." Journal of Engineering for Gas Turbines and Power, 134(3), 031502.


• Kabiraj, L., Sujith, R. I., & Wahi, P. (2012) "Investigating the dynamics of combustion-driven oscillations leading to lean blowout." Fluid Dynamics Research, 44(3), 031408.


• Kabiraj, L., & Sujith, R. I. (2012) "Nonlinear self-excited thermoacoustic oscillations: intermittency and flame blowout." Journal of Fluid Mechanics, 713, 376-397.


• Kabiraj, L., Saurabh, A., Wahi, P., & Sujith, R. I. (2012) "Route to chaos for combustion instability in ducted laminar premixed flames." Chaos: An Interdisciplinary Journal of Nonlinear Science, 22(2), 023129.


• George, K. J., & Sujith, R. I. (2012) "Sound production by vorticity fluctuations in a stagnation point flow." International Journal of Aeroacoustics, 11(5-6), 581-605.


• George, K. J., & Sujith, R. I. (2012) "Disturbance energy norms: A critical analysis." Journal of Sound and Vibration, 331(7), 1552-1566.


• Subramanian, P., Sujith, R. I., & Wahi, P. (2013) "Subcritical bifurcation and bistability in thermoacoustic systems." Journal of Fluid Mechanics, 715, 210-238.


• George, K. J., & Sujith, R. I. (2011) "On Chu's disturbance energy." Journal of Sound and Vibration, 330(22), 5280-5291.

2011

• Subramanian, P., & Sujith, R. I. (2011) "Non-normality and internal flame dynamics in premixed flame–acoustic interaction." Journal of Fluid Mechanics, 679, 315-342.


• Kulkarni, R., Balasubramanian, K., & Sujith, R. I. (2011) "Non-normality and its consequences in active control of thermoacoustic instabilities." Journal of Fluid Mechanics, 670, 130-149.


• Mariappan, S., & Sujith, R. I. (2011) "Modelling nonlinear thermoacoustic instability in an electrically heated Rijke tube." Journal of Fluid Mechanics, 680, 511-533.


• Selimefendigil, F., Sujith, R. I., & Polifke, W. (2011) "Identification of heat transfer dynamics for non-modal analysis of thermoacoustic stability." Applied Mathematics and Computation, 217(11), 5134-5150.


• Kumara Gurubaran, R., & Sujith, R. I. (2011) "Dynamics of spray–swirl–acoustics interactions." International Journal of Spray and Combustion Dynamics, 3(1), 1-22.

2010

• Mariappan, S., & Sujith, R. I. (2010) "Thermoacoustic instability in a solid rocket motor: non-normality and nonlinear instabilities." Journal of Fluid Mechanics, 653, 1-33.


• Subramanian, P., Mariappan, S., Sujith, R. I., & Wahi, P. (2010) "Bifurcation analysis of thermoacoustic instability in a horizontal Rijke tube." International journal of spray and combustion dynamics, 2(4), 325-355.

2009

• George, J., & Sujith, R. I. (2009) "Emergence of acoustic waves from vorticity fluctuations: Impact of non-normality." Physical Review E, 80(4), 046321.


• ulsyan, B., Balasubramanian, K., & Sujith, R. I. (2009) "Revisiting a model for combustion instability involving vortex shedding." Combustion Science and Technology, 181(3), 457-482.


• Nagaraja, S., Kedia, K., & Sujith, R. I. (2009) "Characterizing energy growth during combustion instabilities: Singularvalues or eigenvalues?." Proceedings of the Combustion Institute, 32(2), 2933-2940.

2008

• Balasubramanian, K., & Sujith, R. I. (2008) "Non-normality and nonlinearity in combustion–acoustic interaction in diffusion flames." Journal of Fluid Mechanics, 594, 29-57.


• Balasubramanian, K., & Sujith, R. I. (2008) "Nonlinear response of diffusion flames to uniform velocity disturbances." Combustion science and technology, 180(3), 418-436.


• Balasubramanian, K., & Sujith, R. I. (2008) "Thermoacoustic instability in a Rijke tube: Non-normality and nonlinearity. " Physics of Fluids, 20(4), 044103.


• Tyagi, M., Sujith, R. I., & Vasu, S. (2008) "Nonlinear distortion of traveling waves in non-uniform gasdynamic flows." International Journal of Aeroacoustics, 7(3-4), 243-265.


• Karthik, B., Chakravarthy, S. R., & Sujith, R. I. (2008) "Mechanism of pipe-tone excitation by flow through an orifice in a duct." International Journal of Aeroacoustics, 7(3-4), 321-347.


• Ganesh Anavaradham, T. K., Sujith, R. I., Shreenivasan, O. J., Chakravarthy, S. R., & Panneerselvam, S. (2008) "Effect of Liquid Injection on Acoustic Field Induced from Supersonic Flow Past Cavities." Journal of Propulsion and Power, 24(4), 681-687.


• Balachandran, R., Chakravarthy, S. R., & Sujith, R. I. (2008) "Characterization of an acoustically self-excited combustor for spray evaporation." Journal of propulsion and power, 24(6), 1382-1389.


• Kumara Gurubaran, R., Sujith, R. I., & Chakravarthy, S. R. (2008) "Characterization of a prefilming airblast atomizer in a strong swirl flow field." Journal of Propulsion and Power, 24(5), 1124-1132.


• Kedia, K. S., Nagaraja, S. B., & Sujith, R. I. (2008) "Impact of linear coupling on thermoacoustic instabilities." Combustion Science and Technology, 180(9), 1588-1612.


• Varun, A. V., Balasubramanian, K., & Sujith, R. I. (2008) "An automated vortex detection scheme using the wavelet transform of the d 2 field." Experiments in fluids, 45(5), 857-868.

2007

• Tyagi, M., Chakravarthy, S. R., & Sujith, R. I. (2007) "Unsteady combustion response of a ducted non-premixed flame and acoustic coupling." Combustion Theory and Modelling, 11(2), 205-226.


• Kumar, T. S., Patle, M. K., & Sujith, R. I. (2007) "Characteristics of acoustic standing waves in packed‐bed columns." AIChE journal, 53(2), 297-304.

2006

• Reddy, A. P., Sujith, R. I., & Chakravarthy, S. R. (2006) "Swirler flow field characteristics in a sudden expansion combustor geometry." Journal of propulsion and power, 22(4), 800-808.


• Scarborough, D. E., Sujith, R. I., & Zinn, B. T. (2006) "The effect of resonant acoustic oscillations on heat and mass transfer rates in a convection air dryer." Drying Technology, 24(8), 931-939.


• Santosh, H., & Sujith, R. I. (2006) "Acoustic nearfield characteristics of a wrinkled premixed flame." Combustion science and technology, 178(7), 1263-1295.

2005

• Sujith, R. I. (2005) "An experimental investigation of interaction of sprays with acoustic fields." Experiments in Fluids, 38(5), 576-587.


• Santosh, H., & Sujith, R. (2005) "Prediction of Heat Release Transfer Function of a Premixed Flame." In 43rd AIAA Aerospace Sciences Meeting and Exhibit (p. 936).


• Tyagi, M., & Sujith, R. I. (2005) "Nonlinear distortion of travelling waves in variable-area ducts with base flow: a quasi-one-dimensional analysis." Journal of Fluid Mechanics, 536, 347-366.


• Raj, A., & Sujith, R. I. (2005) "Closed-form solutions for the free longitudinal vibration of inhomogeneous rods." Journal of sound and vibration, 283(3-5), 1015-1030.


• Balasubramanian, K., & Sujith, R. I. (2005) "Relativistic shock formation in the presence of radial entropy gradients." Physics of Fluids, 17(5), 057105.


• Sujith, R. I. (2005) "Magnetohydrodynamic shock wave formation: Effect of area and density variation." Physics of plasmas, 12(5), 052116.


• Ramamurthi, K., Patnaik, R., Radhakrishnan, A., Reddy, P., Sujith, R. I., & Govardhan, R. N. (2005) "Flow visualization studies of jets in the presence of loud pure tones." Journal of Flow Visualization and Image Processing, 12(3).


• Tyagi, M., & Sujith, R. I. (2005) "The propagation of finite amplitude gasdynamic disturbances in a stratified atmosphere around a celestial body: An analytical study." Physica D: Nonlinear Phenomena, 211(1-2), 139-150.


• Karthik, B., Kowsik, B., Venkareswarlu, N., Sujith, R., & Chakravarthy, S. (2005) " Acoustic field in a duct resulting from vortex shedding from multiple restrictors." In 39th Aerospace Sciences Meeting and Exhibit (p. 1105).

2004

• Muralidharan, S., & Sujith, R. I. (2004) "Shock formation in the presence of entropy gradients in fluids exhibiting mixed nonlinearity." Physics of Fluids, 16(11), 4121-4128.


• Durga, K. K., Sujith, R. I., & Tyagi, M. (2004) "Finite amplitude longitudinal gas oscillations in a duct with temperature gradient." Acta acustica united with Acustica, 90(6), 1131-1141.


• Karthik, B., Venkateswarlu, N., Kowsik, B., Chakravarthy, S., Sujith, R., & Tulapurkara, E. (2000) "Vortex-resonant sound interaction in a duct containing an orifice." In Fluids 2000 Conference and Exhibit (p. 2561).

2003

• Karthik, B., Chakravarthy, S. R., & Sujith, R. I. (2003) "Jet forking driven by pipe tone." The Journal of the Acoustical Society of America, 113(6), 3091-3094.


• Subrahmanyam, P. B., Sujith, R. I., & Lieuwen, T. C. (2003)

  "

  Propagation of sound in inhomogeneous media: Exact, transient solutions in curvilinear geometries." Journal of vibration and acoustics, 125(2), 133-136.


• Subrahmanyam, P. B., Sujith, R. I., & Ramakrishna, M. (2003) "Determination of unsteady heat release distribution from acoustic pressure measurements: A reformulation of the inverse problem." The Journal of the Acoustical Society of America, 114(2), 686-696.


• Tyagi, M., & Sujith, R. I. (2003) "Nonlinear distortion of travelling waves in variable-area ducts with entropy gradients." Journal of Fluid Mechanics, 492, 1-22.

2002

• Muruganandam, T. M., Lakshmi, S., Ramesh, A. A., Viswamurthy, S. R., Sujith, R. I., & Sivaram, B. M. (2002) "Mixing of transversely injected jets into a crossflow under low-density conditions." AIAA journal, 40(7), 1388-1394.


• Bala Subrahmanyam, P., & Sujith, R. I. (2002) "Acoustic Fields in inhomogeneous media: some exact harmonic solutions for variable area ducts and curvilinear geometries." Acta Acustica united with Acustica, 88(6), 837-841.


• Kakkassery, J. K., Sujith R. I., & Kurian J. (2002) "On the breakdown of continuum and shock formation in low-density flows." Vacuum, 65, 45-50.


• Tyagi, M., & Sujith, R. I. (2003) "Nonlinear distortion of travelling waves in variable-area ducts with entropy gradients." ournal of Fluid Mechanics, 492, 1-22.

2001

• Subrahmanyam, P. B., Sujith, R. I., & Lieuwen, T. C. (2001) "A family of exact transient solutions for acoustic wave propagation in inhomogeneous, non-uniform area ducts." Journal of sound and vibration, 240(4), 705-715.


• Bala Subrahmanyam, P., & Sujith, R. I. (2001) "Exact solutions for axisymmetric vibrations of solid circular and annular membranes with continuously varying density." Journal of Sound Vibration, 248, 371-378.


• Sujith, R. I. (2001) " Exact solutions for modeling sound propagation through a combustion zone." The Journal of the Acoustical Society of America, 110(4), 1839-1844.


• Sujith, R. I., Ramesh, R., Pradeep, S., Sriram, S., & Muruganandam, T. M. (2001) "Mixing of high speed coaxial jets." Experiments in fluids, 30(3), 339-345.

2000

• Sujith, R. I., Waldherr, G. A., Jagoda, J. I., & Zinn, B. T. (2000) "Experimental investigation of the evaporation of droplets in axial acoustic fields." Journal of Propulsion and Power, 16(2), 278-285.


• Ramesh, R., Pradeep, S., Muruganandam, T. M., & Sujith, R. I. (2000) "Studies on freejets from nozzles for high-speed mixing applications." Experiments in fluids, 29(4), 359-368.


• Karthik, B., Kumar, B. M., & Sujith, R. I. (2000) "Exact solutions to one-dimensional acoustic fields with temperature gradient and mean flow." The Journal of the Acoustical Society of America, 108(1), 38-43.


• Sujith, R. I., & Zinn, B. T. (2000) " A theoretical investigation of enhancement of mass transfer from a packed bed using acoustic oscillations." The Canadian Journal of Chemical Engineering, 78(6), 1145-1150.

1999

• Sujith, R. I., Waldherr, G. A., Jagoda, J. I., & Zinn, B. T. (1999) "A theoretical investigation of the behavior of droplets in axial acoustic fields." Journal of vibration and acoustics, 121(3), 286-294.


• Karthik, B., Mohanraj, R. K., Ramakrishnan, R., & Sujith, R. I. (1999) "Exact solution for sound propagation in ducts with an axial mean temperature gradient and particulate damping." The Journal of the Acoustical Society of America, 106(5), 2391-2395.

1998

• Kumar, B. M., & Sujith, R. I. (1998) "Exact solution for one-dimensional acoustic fields in ducts with polynomial mean temperature profiles." Journal of vibration and acoustics, 120(4), 965-969.

1997

• Sujith, R. I., Waldherr, G. A., Jagoda, J. I., & Zinn, B. T. (1997) "An experimental investigation of the behavior of droplets in axial acoustic fields." Journal of vibration and acoustics, 119(3), 285-292.


• Deependran, B., Sujith, R., & Kurian, J. (1997) " Studies of low-density freejets and their impingement effects." AIAA journal, 35(9), 1536-1542.


• Kumar, B. M., & Sujith, R. I. (1997) " Exact solution for one-dimensional acoustic fields in ducts with a quadratic mean temperature profile." The Journal of the Acoustical Society of America, 101(6), 3798-3799.


• Kumar, B. M., & Sujith, R. I. (1997) "Exact solutions for the longitudinal vibration of non-uniform rods." Journal of sound and vibration, 207(5), 721-729.

1996

• Sujith, R. I. (1996) "Transfer matrix of a uniform duct with an axial mean temperature gradient." The Journal of the Acoustical Society of America, 100(4), 2540-2542.


• Sujith, R. I., Waldherr, G. A., Jagoda, J. I., & Zinn, B. T. (1996) "On the effect of evaporation on droplet drag." Journal of fluids engineering, 118(4), 862-864.

1995

• Sujith, R. I., & Hodges, D. H. (1995) "Exact solution for the free vibration of a hanging cord with a tip mass." Journal of Sound Vibration, 179, 359-361.


• Hodges, D. H., & Sujith, R. I. (1995) " Exact solution for the free vibration of a rotating cord with a tip mass." Journal of Sound Vibration, 181, 911-914.


• Sujith, R. I., Waldherr, G. A., & Zinn, B. T. (1995) "An exact solution for one-dimensional acoustic fields in ducts with an axial temperature gradient." Journal of Sound and Vibration, 184(3), 389-402.


• Sujith, R. I., & Matta, L. M. (1995) "On the Eigenvalues of the Wave Equation for a Duct with an Axial Mean Temperature Gradient." Aeronautical Society of India, Journal, 47(4), 222-226.

1992

• Sujith, R. I., Chen, F., Daniel, B. R., Jagoda, J. I., & Zinn, B. T. (1992) "Acoustic characteristics of pulse combustor mixing chambers." In Symposium (International) on Combustion (Vol. 24, No. 1, pp. 1315-1321). Elsevier.