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鉴于火箭冲压发动机补燃室内呈现出复杂的三维化学反应流，传统方法对这一流场的数值分析所遇到的主要困难是求解椭圆型Ｎ－Ｓ方程组极为耗时而不利于工程应用，采用先进的块隐式法求解恒温掺混流场得到了很快的收敛速度，这一尝试为快速计算化学反应流打下了很好的基础。
In view of the complexity of three-dimensional chemical reaction in rocket ramjet engine, the main difficulty encountered in the numerical analysis of this flow field by the traditional method is that it is extremely time-consuming to solve the elliptic N-S equations and is not suitable for engineering applications. The advanced block implicit method solves the thermostatic mixing flow very fast convergence rate, this attempt for the rapid calculation of chemical reaction flow laid a good foundation.