A hypersonic vehicle, its flight state is changeable, which is often related to the heat load change of chamber wall. Thermal and flow response characteristics during flight state change are investigated in this research experimentally by utilizing the electrically heat experiment system. It is...

R744 is the most competitive, and R744 is the most ideal when flammability and toxicity are strictly limited. There are some problems in the current R744 heating system, for example the pressure at the heat release side is often more than 10.0MPa. High operating pressure brings high cost....