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Fluid Mechanics and Aerodynamics
Fluid Dynamics and Combustion Laboratories
K. M. Isaac
A wide range of fluid dynamics and combustion research topics are being conducted in these laboratories. The topics being studied include aero-structure interaction and control, intelligent aircraft, active flow control, wave riders, microfluidics, MEMS, flow and combustion in porous media, multiphase flow, emissions from combustion and evaporative systems, lean premixed combustion, combustion instability, active combustion control, atomization and sprays, particle image velocimetry (PIV) and CFD applications in fluid dynamics and combustion problems. These laboratories are equipped with state-of-the-art instrumentation for flow velocity and turbulence measurements, liquid and solid particle size measurement in two-phase flow and chemical species such as NOx and CO in combustion systems. Two powerful pulse lasers form the core of the instrumentation. These are used for particle image velocimetry (PIV), flow visualization and laser-induced fluorescence. A computer controlled PIV image interrogation system yield fast data throughput. A laser diffraction particle analyzer is available for instantaneous measurement of solid and liquid particle size. A powerful pulse xenon light source is used for short duration schlieren studies and UV diagnostics. A hot wire anemometer is available for velocity and turbulence measurements. A digital imaging system and image processing software are available for analyzing flow field images. Experimental facilities include a supersonic wind tunnel, a shock tube, a combustion rack, a detonation apparatus, a supersonic atomization apparatus, a 48"x 30" test section, open circuit subsonic wind tunnel, an active flow control rack, and a high-temperature, high-pressure, open jet combusting flow apparatus. These laboratories are equipped to undertake short-duration and long-duration industrial projects, several of which have been completed and many of which are in progress. We conduct both experimental studies and computer simulations of flow and combustion problems in our work Several computational fluid dynamics (CFD) packages and combustion simulation packages are installed on the computer systems on campus. These are supplemented by pre- and post-processing packages for grid generation, visualization and animation.
Students enrolled in AE 283 - Experimental Methods in Aerospace Engineering II, utilize this laboratory to conduct several experiments on high-speed aerodynamics including visualization of shock waves.