Cfd Modeling of Thermally and Chemically Nonequilibrium Flows in Discharge Channel and in Under-Expanded Plasmatron Jets Over a Butt-End Probe

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Scientific paper

The thermally and chemically nonequilibrium flows in discharge channel of inductive plasmatron and in underexpanded air jets over a butt-end model are studied by CFD modeling. CFD modeling of entire flow field and heat transfer for supersonic high enthalpy air test conditions have been carried out for the 100-kW inductive plasmatron IPG-4 in the Institute for Problems in Mechanics Russian Academy of Science (IPM RAS) (Yakushin M., 1998). The results of the code-to-experiment validation in terms of the stagnation point heat transfer rates and stagnation pressure are reported. The differences in numerical results for various gas-phase models are analyzed.

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