Euler solutions of strongly interacting 3D multistream compressible flows of high and moderate pressure ratios
Abstract
The study of shear layers on interacting flows, to date, has generally been directed to single or twostream external mixing in simple twodimensional geometries and under tolerable pressure ratios, typically unity, of the interacting streams. In many engineering applications, flow interactions or mixing may involve two or more streams or chemical species with stream pressure ratio very much above 1. Such interacting flow fields are quite complex and present a challenge to accurate modeling and simulation. Though such strongly interacting multistream flows, even for inviscid/inviscid interaction, are of engineering importance, they have not been largely studied to gain a fundamental understanding of the fluid dynamic processes of the interaction (or mixing) phenomena, even in recent years of high speed computations. Therefore, such an effort is undertaken here. Euler computations of a strongly interacting flow field with a stream pressure ratio of nearly 430:1 between high subsonic external streams and a supersonic nozzle flow is carried out. The solution clearly shows the flow structure, manifesting the dynamics of the fluidfluid interaction process.
 Publication:

AIAA, Fluid Dynamics, 21st Plasma Dynamics and Lasers Conference, 21st, Seattle, WA, June 1820, 1990. 17 p.
 Pub Date:
 June 1990
 Bibcode:
 1990fdpd.confT....D
 Keywords:

 Compressible Flow;
 Euler Equations Of Motion;
 Pressure Effects;
 Three Dimensional Flow;
 Computational Fluid Dynamics;
 Finite Volume Method;
 Flow Geometry;
 Mixing Length Flow Theory;
 Shear Layers;
 Tvd Schemes;
 Fluid Mechanics and Heat Transfer