Unsteady Aerodynamics

Shock system dynamics, flow separation, and shock-combustion coupling.

Methods

• Direct-connect and blowdown wind-tunnel testing with controlled backpressure, inflow distortion, and heat release to isolate boundary-condition effects.
• Self-aligned focusing schlieren and high-speed imaging to track shock motion, separation, and shock-combustion interactions.
• Distributed static pressure and high-speed wall-pressure measurements to quantify propagation, pressure gradients, and coupled flow response.
• Spectral analysis, wavelet analysis, cross-correlation, POD, and CST-POD to identify dominant frequencies, time lags, and coherent structures.

Examples

Normalized cross-correlation of high-speed wall-pressure signals.

Normalized lag behavior across operating conditions.