Modelling of the arc-jet plasma flow in the sr5 nozzle using a thermochemical Nonequilibrium and a state-to-state approach

Mathematics – Logic

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Scientific paper

A phenomenological study of the influence of nonequilibrium processes on an arc-jet nozzle flow has been carried using a Quasi-1D thermal nonequilibrium code. Then, a combination of 2D Navier-Stokes and state-to-state approaches has been used to describe the air plasma flow in an arc-jet. The gas dynamic parameters were calculated in Navier-Stokes approximation in a steady state description. Finally, the set of equations of vibrational level densities and atomic species densities was locally solved. These numerical results are compared with experimental measurements of molecular vibration temperatures using spectroscopic techniques.

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