Computation of Weakly Ionized Hypersonic Flows in Thermochemical Nonequilibrium

被引:182
作者
Candler, Graham V. [1 ]
MacCormack, Robert W. [2 ]
机构
[1] N Carolina State Univ, Dept Mech & Aerosp Engn, Raleigh, NC 27695 USA
[2] Stanford Univ, Dept Aeronaut & Astronaut, Stanford, CA 94305 USA
关键词
D O I
10.2514/3.260
中图分类号
O414.1 [热力学];
学科分类号
摘要
A numerical method to compute a two-dimensional hypersonic flowfield that is weakly ionized and in thermochemical nonequilibrium has been developed. Such a flowfield is described by coupled partial differential equations for the conservation of species mass, mass-averaged momentum, vibrational energy of each diatomic species, electron energy, and total energy. The steady-state solution to these fully coupled equations has been obtained for a gas composed of seven chemical species and characterized by six temperatures using an implicit Gauss-Seidel line relaxation technique. The computed electron number densities in the flowfield of a sphere cone compare well with experimental results.
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页码:266 / 273
页数:8
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