四角錘伝熱面を有する衝突噴流空冷システムの伝熱特性に関する基礎検討

抄録

In this study, the heat transfer coefficients were measured to investigate the effects of surface shape for the heat transfer characteristics of impingement air cooling system. The surface shape applied to obtain the variation in the heat transfer coefficient was the pyramid-like-surface and smooth surface. As a results, the heat transfer coefficients of both the pyramid-like surface and smooth surface were increased with increasing the pressure ratio of air. Moreover, it was found that the application of pyramid-like-surface improved the heat transfer performance of impingement air cooling system by the change of pyramid angle.