论文部分内容阅读
应用ＴＶＤ格式和Ｂａｌｄｗｉｎ－Ｌｏｍａｘ代数紊流模型求解三维Ｎ－Ｓ方程，详细模拟出了一个直列透平叶栅中二次流及其损失在叶栅通道中的产生和发展过程，并给出了叶栅损失的分布状况，其结果深刻揭示了透平叶栅二次流损失的产生发展机制。本文计算得到的叶栅损失的栅距平均值沿叶高的分布曲线与实验值吻合良好，表明格式求解精度较高。
TVD and Baldwin-Lomax algebraic turbulence model are used to solve the three-dimensional N-S equation. The generation and development of the secondary flow and its loss in a cascade cascade are simulated in detail. The distribution of cascade losses, the results reveal the development of turbine cascade secondary flow loss mechanism. In this paper, the distribution of the average value of the grid spacing of the cascades along the leaf height is in good agreement with the experimental data, indicating that the accuracy of the format calculation is high.