Department of Aerospace Engineering | Indian Institute Of Technology Madras , Chennai

Research in Aerodynamics, Flight Dynamics & Control addresses the fundamental and applied aspects of aerospace vehicle motion and fluid-vehicle interaction. The domain encompasses aerodynamics, flow physics, flight dynamics, guidance and control, and autonomous systems, with applications spanning aircraft, helicopters, and unmanned aerial vehicles. Research integrates analytical, computational, and experimental approaches to advance the performance, stability, and autonomy of aerospace systems.

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    Boundary Layers and Stability of Flows, Turbulent Flows
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    Shock Tubes and Related Problems
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    Development of Algorithms and Code for Numerical Methods in flight controls and Computational Fluid Dynamics
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    Vortex Dynamics, Supersonic Mixing and Combustion
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    Optical Flow Diagnostics
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Test Facilities and Associated Instrumentation

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Combustion driven shock tunnel: Flows can be generated at Mach number ranges between 5-12 with Enthalpy levels upto 6 MJ. Both reflected and straight modes are possible, and can be used to study moving shock problems.

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Supersonic wind tunnels: Free jet facility that can operate at supersonic speeds ranging from Mach number of 1.5-3.6

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Compressor: A 2-stage reciprocating water cooled type compressor operated by a 90 kW motor with a maximum discharge of about 510 m3/hour

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Supersonic combustion facility

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Facility for oscillatory combustion response of premixed flames

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Instruments

  • CCD camera
  • Laser
  • Light sources, optical mirrors and lenses
  • Piezo-electric and piezo-resistive type pressure transducers
  • Platinum-Rhodium thermocouple for flame temperature in supersonic combustion
  • Pitot and static probes
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Low density tunnel: Only one of its kind in South-East Asia and can simulate high altitude flow conditions covering continuum to transitional flow regimes.

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Transonic wind tunnel: Induction type self-correcting tunnel that can operate at a Mach number range of 0.8-1.2

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Air reservoirs: Three reservoirs with a capacity of 12 m3, with maximum pressure of 1750 kN/m2 Strut based mixing enhancement facility: Operates at supersonic mach number with the option to change test sections

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Cavity based flame holding facility

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Diagnostic Techniques and Instruments

  • Particle image velocimetry
  • Doubled pulsed laser with power supplying unit
  • Three-Component Phase Doppler Particle Analyzer
  • Mixing studies by planar mie-scattering technique flow field studies in supersonic flow by schlieron and shadowgraph methods
  • Glow discharge visualization of low density free jets
  • Interferometric methods for shear stress measurements in low density jet impingement
  • Acetone and Iodine PILF for mixing concentration measurements
  • Spray PLIF for volume and spatial diameter distribution
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