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Abstract <p>The distributions of the dynamic pressures and heat fluxes are experimentally investigated in subsonic jets of the VGU-3 HF plasmatron flowing out from a conical water-cooled nozzle with the exit section diameter of 80&#xa0;mm. The dynamic pressures are measured using a Pitot–Prandtl tube. The&#xa0;heat fluxes are measured using a water-cooled calorimetric probe with copper heat-absorbing surface. The temperature distributions over the outer surface of the quartz discharge channel of the plasmatron are measured using a thermal imager with and without mounting a nozzle. All the experiments are performed at the anode powers of 100 and 250&#xa0;kW for the pressures in the plasmatron test chamber of 5 and 10 kPa.</p>

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Diagnostics of Subsonic Air Plasma Jets in the VGU-3 High-Frequency Induction Plasmatron

  • 期刊论文

  • 发表日期：

    2026年4月1日

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  • A. V. Chaplygin,
  • A. F. Kolesnikov

摘要

Abstract

The distributions of the dynamic pressures and heat fluxes are experimentally investigated in subsonic jets of the VGU-3 HF plasmatron flowing out from a conical water-cooled nozzle with the exit section diameter of 80 mm. The dynamic pressures are measured using a Pitot–Prandtl tube. The heat fluxes are measured using a water-cooled calorimetric probe with copper heat-absorbing surface. The temperature distributions over the outer surface of the quartz discharge channel of the plasmatron are measured using a thermal imager with and without mounting a nozzle. All the experiments are performed at the anode powers of 100 and 250 kW for the pressures in the plasmatron test chamber of 5 and 10 kPa.