含分流叶片的离心压缩机级的数值分析

Numerical Analysis of Centerifugal Compressor Stage with Short Blade

对含分流叶片的离心压缩机级进行了三维数值试验。重点分析了叶轮、扩压器和蜗壳部件中的流动特征,另外,数值计算的结果表明:离心叶轮分流叶片的位置、扩压器宽度,以及蜗壳型式等方面的不同选择都会对压缩机的性能造成一定的影响。最后对数值计算的精度进行了分析说明。

The 3D numerical test is carried out on centrifugal compressor stage with short blade. Analyze the flow characteristic of impeller?vane diffuser and scroll parts, in addition, the result of numerical calculation shows that, the different choice what the location of short blade in centrifugal impeller, vane diffuser width, scroll type can make effective to the performance of compressor, Analyze and description is carricd out on the precision of numerical calculation at last.