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Analysis of high speed non-equilibrium chemically reacting gas flows. Part II. A finite volume/finite element model and numerical studies

✍ Scribed by Christophe Harlé; Graham F. Carey; Philip L. Varghese

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
207 KB
Volume
32
Category
Article
ISSN
0271-2091

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✦ Synopsis

In this part, a new hybrid numerical model for solving the two-dimensional axisymmetric Navier -Stokes equations for a multi-species reacting gas out of thermal and chemical equilibrium is constructed. The formulation is based on a mixed finite volume/finite element formulation for unstructured meshes. The convective flux is treated with an approximate Osher -Riemann solver, and the other fluxes are treated using P1 finite elements. New aspects of the extension of the Osher -Riemann solver are presented here. This scheme was used for the benchmark model comparison in Part I, and is applied here to hypersonic (Mach 25) flow past a two-dimensional ellipse and a hemispherically blunted body at sea level.

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Analysis of high speed non-equilibrium c
Analysis of high speed non-equilibrium chemically reacting gas flows. Part I. Physical modeling and sensitivity studies
✍ Christophe Harlé; Graham F. Carey; Philip L. Varghese 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 191 KB 👁 1 views

In this part, a theoretical model for high speed flow of chemically reacting gases out of thermal and chemical equilibrium is presented. The main features of the physical model are discussed together with details for a new form of the kinetic rate coefficients for non-equilibrium flows and presentat