Title: Numerical simulation of air/H₂ combustion processes in a scramjet turbulent flow

Authors: Y. Burtschell, S. Seror, J.D. Parisse, D. Zeitoun

Addresses: EPUM Mechanic Energetic Department, University of Provence, France. ' CFD R&D Group, Aerodynamic Dept., Israel Aerospace Industries, Engineering & Development Directorate, International Ben Gurion Airport, 70100 Lod, Israel. ' EPUM, Mechanic Energetic Department, University of Provence, France. ' EPUM, Mechanic Energetic Department, University of Provence, France

Abstract: The aim of this work is to develop a numerical approach, based on the Favre|s averaged Navier-Stokes equations coupled with a turbulence model and with a complex finite rate Air/Hydrogen combustion kinetic model to simulate the unsteady axisymetric supersonic hydrogen-air mixing processes. The main application is dedicated to the scramjet hypersonic air-breathing propulsion engine. To achieve this goal the Spalart-Allmaras turbulence model (SA) with correction terms to model the compressibility effects and the complete finite rate chemistry model of Jachimowsky involving 13 species and 153 reactions have been implemented in a finite volume code.

Keywords: shock waves; combustion; hydrogen; air; turbulence modelling; Spalart-Allmaras; Navier-Stokes equations; kinetic modelling; scramjet turbulent flow; hypersonic propulsion engines; air-breathing propulsion engines; supersonic hydrogen-air mixing.

DOI: 10.1504/PCFD.2008.019960

Progress in Computational Fluid Dynamics, An International Journal, 2008 Vol.8 No.6, pp.320 - 330

Published online: 18 Aug 2008 *

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