Accession Number : ADP007713

Title :   Nonequilibrium 3D Flows of Air through Inlets,

Corporate Author : POLITECNICO DI TORINO (ITALY)

Personal Author(s) : Marsilio, Roberto ; Pandolfi, Maurizio

Report Date : FEB 1992

Pagination or Media Count : 10

Abstract : The hypersonic nonequilibrium flow of air through inlets of propulsion devices is investigated. The fluid dynamics is described by the Euler equations and a chemical model accounts for finite rate equations. The numerical procedure is based upon a space-marching technique, under the hypothesis of fully developed supersonic flow. The conservative form of the Euler and finite-rate chemical equations are integrated, following a finite volume discretization and a flux-difference splitting procedure. The numerical scheme is of the second order accuracy, with a proper TVD technique to avoid spurious oscillations at flow discontinuities. Numerical results are presented and discussed.

Descriptors :   *NONEQUILIBRIUM FLOW, *HYPERSONIC FLOW, *THREE DIMENSIONAL FLOW, ACCURACY, AIR, CHEMICALS, DISCONTINUITIES, DYNAMICS, EQUATIONS, FLOW, FLUID DYNAMICS, FLUIDS, INLETS, MODELS, OSCILLATION, RATES, SPLITTING, SUPERSONIC FLOW, VOLUME, JET ENGINE INLETS.

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE