Abstract—

The domain in the “total enthalpy–stagnation pressure” coordinates and, correspondingly, the ranges of the velocity and altitude of the atmospheric entry of a body with the nose bluntness radius of 1 m, for which the conditions of the local modeling of heat transfer to the stagnation point are fulfilled in subsonic high-enthalpy air jets flowing around cylindrical flat-nosed models, 20 to 140 mm in diameter, are established. The region of the trajectory of the European experimental IXV vehicle entry into the atmosphere, in which the local modeling of the convective heating of the vicinity of its nose, assuming 1 m in radius, is possible in the VGU-4 HF plasmatron, is determined.

中文翻译：

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VGU-4 HF等离激子在亚音速高焓喷气机中空气动力加热的模拟条件分析

摘要-

“总焓-停滞压力”中的域与鼻子钝角半径为1 m的物体进入大气的速度和高度的范围相对应，并相应地进行局部传热建模的条件围绕直径20至140 mm的圆柱形扁嘴模型流动的亚音速高焓空气喷射器可以满足这一停滞点的要求。确定了欧洲实验IXV车辆进入大气的轨迹区域，在该区域中，可以确定VGU-4 HF等离子加速器在其鼻部附近对流加热的局部模型（假设半径为1 m）。 。