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- W2070759674 abstract "We present a new numerical formulation governing the physics of a plasma near strong shock waves in gases at hypersonic speeds. A plasma is composed of multiple species in thermo-chemical nonequlibrium, thus making high-fidelity numerical modeling challenging. In order to reduce the size and complexity of the problem, a number of simulation approaches take advantage of simplifications concerning the flow properties of the various species. The plasma is also often assumed to be charge neutral in order to bypass the requirement of the solution of Maxwell’s equations. In this work, we drop these simplifications and solve the full Navier-Stokes equations for each species in the plasma including the physics of thermo-chemical nonequilibrium, along with Maxwell’s equations to account for electrodynamic e↵ects. The full set of equations has been programmed in the “Stanford University Unstructured” (SU 2 )o pen source suite of tools, and two di↵erent test cases have been simulated and compared with published data. In the first case, the unsteady dynamics of plasma formation near a normal shock wave at Mach 15 are modeled and compared with previous work. In the second case, heat transfer to a three dimensional body from a stream of plasma at Mach 4.6 is simulated and compared with experimental data. The two test cases show an excellent match with published data. In addition to this validation / verification study, this paper also presents the formulation and numerical implementation of our model for the equations governing high-temperature plasmas." @default.
- W2070759674 created "2016-06-24" @default.
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- W2070759674 date "2012-06-25" @default.
- W2070759674 modified "2023-10-16" @default.
- W2070759674 title "Multidimensional Simulation of Plasma in Argon through a Shock in Hypersonic Flow" @default.
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- W2070759674 doi "https://doi.org/10.2514/6.2012-3105" @default.
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