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ISSN Online: 2377-424X

ISBN Print: 0-85295-345-3

International Heat Transfer Conference 10
August, 14-18, 1994, Brighton, UK

A NUMERICAL STUDY ON CHEMICALLY REACTING HIGH SPEED FLOW USING UPWIND FLUX DIFFERENCE SPLITTING METHOD

Get access (open in a dialog) DOI: 10.1615/IHTC10.4060
pages 449-454

Resumo

A finite-difference method based on conservative supra characteristic method type upwind flux difference splitting has been extended to study the equilibrium/nonequilibrium chemically reacting high speed flow. Upwind method was chosen due to its robustness in capturing the shock wave in the flowfield. For nonequilibrium air, NS-1 species equations were strongly coupled with flowfield equations through convection and species production terms. The effective gamma(γ) was used to couple chemistry with the fluid mechanics for equilibrium chemically reacting flow. Inviscid, nonequilibrium and equilibrium chemically reacting air mixture flows in a quasi one-dimensional divergent nozzle were solved to demonstrate the capability of the current method. The shock waves were captured within two grid points as shown in pressure and temperature distributions. The new equilibrium/nonequilibrium chemically reacting upwind flux difference splitting method can be extended to multi-dimensional flow conditions.