FILM cooling, especially in combination with regenerative cool- ing, is a promising way to protect the engine wall of a scramjet. The effect of the interaction between a shock wave and a coolant flow On cooling efficiency becomes important in supersonic flow. There- Fore, many experiments~1-3 on such interactions have been conducted Recently. Compared with the case without shock impingement, how- Ever, theoretical or numerical studies on film cooling with shook Impingement have been insufficient, and so the mechanism of the Interaction and the degree of its influence on the cooling efficiency Are not well understood.
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