Computational Flow Physics Group

Research grants and contracts

Tim Colonius, Professor of Mechanical Engineering, Caltech

Current projects.

• MURI: Closed-loop control of vortex formation with application to micro air vehicles (AFOSR)
• MURI: Mechanics and Mechanisms of Impulse Loading, Damage, and Failure of Marine Structures and Materials (ONR, G. Ravichandran PI)
• Improved strategies for shockwave lithotripsy (NIH/Indiana University)
• Direct numerical simulation of ultrasonic absorptive coatings (AFOSR)
• A high-fidelity software tool for gas turbine noise prediction (NAVAIR/TTC Technologies, Inc)

Past projects

• Development of a super-grid model for artificial boundary conditions in fluid dynamics and other wave phenomena (NSF)
• Mechanisms of Noise Supression in Chevron Nozzles: an Instability Wave Approach (Aeroacoustics Research Consortium)
• Design Optimization for System-Level Integration of Feedback and Flow Control (Boeing Corp., M. Gharib, PI)
• Phased-array and Modeling Techniques for Detection and Control of Instability Waves in Turbulent Jets. (Aeroacoustics Research Consortium)
• A Unified View of Global Instability in Compressible Flow over Open Cavities. (AFOSR)
• Actively Stabilized Isentropic Supersonic Inlet (DARPA/Northrop Gruman, R. Murray, PI)
• Modeling and Computation of Cloud Cavitation Dynamics (NSF)
• Scientific Computation and Visualization Facility (DURIP, S. Wiggins, PI)
• Active Control of Integrated Inlet/Compression System (DARPA/MIT, J. Paduano, PI)
• Mechanical Origins of Shock-Induced Bioeffects in Shockwave Lithotripsy (NIH/Indiana University)
• Active Control of Self-Sustained Oscillations in Flow Past an Open Cavity (AFOSR)
• Computations of Aerodynamic Sound Generation (NSF)