Research on thermal protection by opposing jet and transpiration for high speed vehicle

A thermal protection structure that unites the opposing jet and platelet transpiration is introduced, whose cooling effect is conducted through numerical research method. When opposing jet is applied, the peak heat flux falls significantly at the stagnation point. By introducing platelet transpiration, the temperature also drops dramatically. The new approach combining both opposing jet and platelet transpiration brings out more dramatic temperature reduction. The numerical results show that the new thermal protection structure works efficiently.