A DETAILED DESCRIPTION OF CHEMICAL AND THERMAL NONEQUILIBRIUM IN HYPERSONIC FLOWS BASED ON ELEMENTARY PROCESSES

U. Riedel, U. Maas and J. Warnatz
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U. Riedel: Institut für Technische Verbrennung, University of Stuttgart, Pfaffenwaldring 12 D-70550 Stuttgart, Germany
U. Maas: Institut für Technische Verbrennung, University of Stuttgart, Pfaffenwaldring 12 D-70550 Stuttgart, Germany
J. Warnatz: Institut für Technische Verbrennung, University of Stuttgart, Pfaffenwaldring 12 D-70550 Stuttgart, Germany

International Journal of Modern Physics C (IJMPC), 1994, vol. 05, issue 02, 229-231

Abstract: The renewed interest in hypersonic flows has created a large demand for physicochemical models for air flow computations around reentry bodies. It is obvious, that besides the improvement of mathematical algorithms for solving the Euler or Navier-Stokes equations detailed physico-chemical models for air in chemical and thermal nonequilibrium are needed for a realistic prediction of hypersonic flowfields. In this paper we present a model, based on elementary physico-chemical processes, for a detailed description of the chemical nonequilibrium together with the excitation of internal degrees of freedom. Results show the strong influence of thermal nonequilibrium on the flowfields.

Date: 1994
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DOI: 10.1142/S0129183194000210

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