论文部分内容阅读
对锥形燃烧室的冷态流场进行了数值模拟，采用Ｔｈｏｍｐｓｏｎ的非正交贴你坐标系统，用坐标变换的方法处理锥形燃烧室曲线壁面边界，用ＳＩＭＰＬＥ算法求解连续方程和Ｎ－Ｓ方程。亲流模型采用工程上常用的ｋ－ε模型。还运用贴体坐标系统数值研究了不同旋流数和不同进口紊流动能对湍流旋流流动的影响，并与实验结果相比较获得较满意的结果，对新型燃烧室的设计提供了理论依据。
The flow field in a conical combustion chamber was numerically simulated. Thompson’s non-orthogonal coordinate system was applied. The conic combustion chamber wall boundary was processed by coordinate transformation. The SIMPLE algorithm was used to solve the continuous equations and N-S equation. Intrinsic flow model used in engineering k-ε model. The effects of different swirl numbers and different inlet turbulent kinetic energy on the turbulent swirling flow were also numerically investigated by using the body coordinate system. The results were compared with the experimental results to obtain satisfactory results, which provided a theoretical basis for the design of a new type of combustion chamber.