Three-Dimensional Jet Noise Prediction

CASE 1: Three-Dimensional Screech

image of underexpanded nozzle flow showing shock cells at a jet Mach number of 1.42
Screech waves from an underexpanded jet at a jet Mach number of 1.42 with the cross section view showing the shock cell structure.

CASE 2: Supersonic Mixing Noise

image of fully expanded supersonic jet at jet Mach number of 1.4, u-velocity
contours on a cross sectional plane
Converging-Diverging nozzle used to generate the supersonic jet with u-contours on a cross-sectional plane.
image of fully expanded supersonic jet at jet Mach number of 1.4, 3-D view
Mach radiation from a supersonic fully expanded jet (M=1.4).