模型燃烧室冷态流场的数值研究

本文采用α-ε湍流模型对模型燃烧室内湍流冷态流场进行了数值分析.采用混合差分格式和SNIP方法进行数值求解.得到了燃烧室内回流区再附长度及速度分布的数值解.计算结果与有关文献的实验数据吻合较好.本文的工作可以作为建立突扩型燃烧室计算模型的基础.

Numerical Studies of the Cold Flow Field in Model Combustion Chambers

Numerical analyses of the cold turbulent flow in model combustion chambers were made by using turbulent model. The hybrid difference scheme and SNIP method were employed. Numerical solutions for retouchmenl length and velocity distributions were obtained in the recirculating zone of the combustion chambers. The calculation results were in fairly good agreement with the reported experimental data. The work presented in this paper was a basic part of the calculation model of sudden-enlarged combustion chambers.