气动加热是高速飞行器热防护设计需要考虑的重要因素,已有的研究表明气动热与物体传热耦合计算是研究气动热对飞行器影响的最好方法。但是,这种方法的计算量大、周期长,不适合气动热防护的工程设计。首先利用气动热计算得到恢复焓和换热系数。其次提出了适用于工程设计的气动热与壳体导热的松耦合计算,提高了计算效率。最后使用经过飞行试验验证的数据对该方法进行了验证,证明了其正确性。

The aerodynamic heating is an important factor in design of thermal protection of high-speed vehicle. Researches indicated that coupled computation of aerothermodynamics and heat conduction is the best way to evaluate impact of aerodynamics heating to vehicle. But coupled computation is hard to applying to engineering design of thermal protection of aerodynamics heating because of its heavy computation work and too long period of iteration. In this work, a method of weak coupled computation of aerothermodynamics and heat conduction in shell is present for engineering design of heat protection. This method is based recovery enthalpy and coefficient of heat transfer from computation of aerothermodynamics, and it is more efficient than strong coupled method. The comparison of the result of this method and the data which is checked by flight test indicate that this method is accurate and efficient.