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In this study, numerical simulation on acceleration characteristics of a supersonic free jet through utilization of a plasmajet was conducted, where the supersonic free jet was accelerated through an interaction in a shear layer between the free jet and plasmajet. In this analysis, the governing equations including two-dimensional compressible Reynolds-averaged Navier-Stokes equations (RANS) were calculated with a commercial code, ANSYS Fluent v. 14.5. As for the turbulence model, a k- realizable turbulence model was employed. In this paper, when a plasma flow is used for the center nozzle, the velocity is higher especially in potential core part than in the case of unheated flow because of a hot core flow of the plasmajet.
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Arai et al. (2019) studied this question.
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