【摘要】 运用有限差分方法对一台设计工况下的层板发汗冷却推力室的壁温特性进行了数值模拟。计算结果表明：壁温相同情况下，发汗冷却推力室承受的燃气温度可比膜冷却方式提高约１０００℃；燃气温度相同时，发汗冷却推力室的壁温较非发汗冷却降低约５０％；层板室壁温度梯度集中在燃气侧；ｍ１／２越大，层板室壁内部换热效率越高，层板内壁温度越低，内、外壁温差越大。更多还原

【Abstract】 A numerical simulation using the finite difference method is performed on the wall temperature of the transpiration cooled thrust chamber with the platelet design. The numerical results show that: for the same wall temperature, the gas tempeature that the transpiration cooling withstands can be raised by 1000℃ compared to the film cooling, for the same gas temperature, the wall temperature of the transpiration cooling can be lowered by 50% compared to the non-transpiration cooling; the platelet wall temperaure gradient on the gas side is very large; for a certain platelet wall, an increase of m1/2 will results in a decrease of inner-wall temperature and an increase of inner-to-outer temperature difference.更多还原