使用一维模型和定比热假设,对超燃发动机在超声速状态下的几何截面的设计及在固定几何截面如何调节气动热力(燃烧速率,喷射位置等)优化工作状态进行了数值研究。采用加热规律经验公式,分析加热规律变化对燃烧室和隔离段内流动参数的影响。采用四阶龙格-库塔法对一维控制方程求解,表明几何形状及加热规律对燃烧室工作的优劣有很大的影响。通过研究发现完全可以单独通过调节加热规律达到优化燃烧工况的目的。 Using the one-dimensional model and the fixed-rate heat assumptions, the numerical study of the geometry design of the super-combustion engine at supersonic speeds and the optimization of the aerodynamic heating (combustion rate, injection position, etc.) at a fixed geometric cross-section were carried out. The heating law empirical formula was used to analyze the influence of heating law on the flow parameters in the combustion chamber and the isolation section. The fourth-order Runge-Kutta method is used to solve the one-dimensional governing equation, which shows that the geometry and heating law have a great influence on the performance of the combustion chamber. Through the study found that can completely regulate the heating law alone to achieve the purpose of optimizing combustion conditions.