采用数值计算方法模拟气氢冲压模型燃烧室流场。文中采用 k- ε模型描述紊流特性 ,Magnussen的 EDC模型估算化学反应速率 ,六通量辐射模型考虑热辐射对燃烧过程的影响。采用非均匀交错网格系统 ,控制容积法和混合差分格式 ,离散控制方程 ,并应用 SIMPL E算法求解。在冷热态流场计算基础上 ,研究了不同来流空气和燃料氢各气流参数以及喷氢孔直径 ,孔数和孔间距对燃烧室出口温度分布 ,温升效率以及总压恢复系数的影响 ,结果令人满意 ,表明本计算方法是合理的 Numerical simulation method was used to simulate the flow field in the combustion chamber of a gas-hydrogen stamped model. In this paper, the k-ε model is used to describe the turbulence characteristics. Magnussen’s EDC model estimates the chemical reaction rate. The six-flux model considers the effect of thermal radiation on the combustion process. The non-uniform staggered grid system, the control volume method and the hybrid difference scheme are used to discretize the governing equations and solved by the SIMPL E algorithm. Based on the calculation of the flow field in the hot and the cold state, the influence of different airflow parameters on the flow of air and fuel hydrogen, the diameter of the jetting hydrogen holes, the number of holes and the hole spacing on the outlet temperature distribution, the efficiency of temperature rise and the total pressure recovery coefficient were studied. , The result is satisfactory, indicating that the calculation method is reasonable