The exhaust plume produced by a planar, multistream supersonic nozzle is studied with and
without the effect of an aft deck and sidewalls. Measurements encompass static wall …

The Supersonics Project of NASA's Fundamental Aeronautics Program is developing
technologies to enable civilian supersonic aircraft. Two of the top challenges to such …

This paper covers particle image velocimetry measurements of a family of rectangular
nozzles with aspect ratios 2, 4, and 8, in the high subsonic flow regime. Far-field acoustic …

The interaction between an 8: 1 aspect ratio rectangular jet and a flat plate, placed parallel
to the jet, is addressed in this study. At high subsonic conditions and for certain relative …

RESEARCH on the noise produced by aircraft engine exhaust jets has progressed most
notably in the civilian sector during the past several decades. Aside from the recently …

An experimental study is carried out addressing the flowfield and radiated noise from the
interaction of a large aspect ratio rectangular jet with a flat plate placed parallel to but away …

Ma= acoustic Mach number, Uj/c∞ c∞= speed of sound, ambient T∞= temperature,
ambient t= thickness of trailing edge of septum Uj= jet exit velocity, ideally expanded PSD …

A resonant interaction between a large aspect ratio rectangular jet and a flat-plate is
addressed in this experimental study. The plate is placed parallel to but away from the direct …

Passive control techniques are applied experimentally to examine different aspects of a
supersonic multistream rectangular nozzle representing a modern airframe-integrated …

An acoustic analogy approach is used to predict the turbulent mixing noise emitted by cold,
subsonic, rectangular jets of aspect ratios 2, 4, and 8. Mean flow interaction effects are …