Analysis of the Simulation Conditions of the Aerodynamic Heating in Subsonic High-Enthalpy Air Jets from the VGU-4 HF Plasmatron

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.