论文部分内容阅读
以LU SGS GE隐式格式和MUSCLTVD迎风格式为基础 ,结合壁面函数方法和简单的混合长度湍流模型 ,对三维可压缩雷诺平均N S方程进行求解。叶列间参数的传递采用混合平面方法并应用了微机网络并行计算技术。计算得到了NASA 35号低展弦比、跨声速轴流压气机级 70 %和 90 %设计转速下的全工况性能曲线 ,并重点分析了其中一些典型工况下的内部流场。计算与实验结果的对比表明 ,此方法能快速得到三维粘性流场的流动特性且计算精度较高 ,可用来模拟跨声速轴流压气机级内的全工况三维粘性流动
Based on LU SGS GE implicit scheme and MUSCLTVD upwind scheme, a three-dimensional compressible Reynolds-averaged Navier-Stark equation is solved by combining wall function method and simple mixed-length turbulence model. The transfer of parameters between leaf columns using a hybrid plane method and the application of computer network parallel computing technology. The full performance curves of NASA 35 with low aspect ratio, transonic axial compressor stages of 70% and 90% design speed were calculated and the internal flow field under some typical operating conditions was analyzed. The comparison between calculation and experimental results shows that this method can quickly obtain the flow characteristics of three-dimensional viscous flow field with high accuracy and can be used to simulate the three-dimensional viscous flow in a transonic axial compressor stage