Optical probing of supersonic aerodynamic turbulence

Laser quasi-schlieren system and laser shadow-correlation system retrieve flow-related signals sufficient for computing accurate, reproducible correlation peaks. Statistical method for obtaining one-shot measurements of the decay history of turbulent structures in a stationary frame of reference is discussed

Acoustic loads at the base of engine clusters

Schlieren photography for acoustic loads at base of engine cluster

Static and dynamic calibrations of MSFC's plug-nozzle special test section /redesigned 1967/

Calibration of plug nozzle special test sectio