ABSTRACT
AFTERBURNING CHARACTERISTICS OF PASSIVELY
EXCITED SUPERSONIC PLUMES
K.H. Yu and K. C. Schadow
Supersonic afterburning plumes that respond to passive excitation were
experimentally studied to explore the role of initial mixing control in the
modication of the afterburning ame characteristics. The plume ow
eld was simulated with pressured-matched supersonic jets that were
discharged from a Mach 2 nozzle into air. To create passive excitation
in the plume{air shear ow, an open cavity with adjustable geometry
was tted at the nozzle exit setting up ow-induced cavity resonance.
