离心风机三元流场的准正交面法计算

A numerical method of arbitrary quasi orthoogonal plane for 3-D flow in centrifugal fans

采用准正交面法求解了离心风机的无粘不可压及可压的三元流场 ,结果表明 :准正交面法可以给出整个三维空间内的流场的速度分布 ,且精度较高 ,这是流面迭代法无法达到的 .本文给出了 4MES IA3B离心风机计算结果 。

In this paper, a numerical method of arbitrary quasi\|orthogonal plane is used to calculate the inviscid, compressible or incompressible, 3\|D flow in a centrifugal fan. By the comparison of an example, it is found that in the meridional plane, the outputs we conclude, including the streamlines and the velocity field, are identical with the iterative solutions on \$S\-1/S\-2\$ stream surfaces. However, 3\|D iterative solutions in the whole field can also be obtained, with high precision, which the method of \$S\-1/S\-2\$ stream surfaces iteration can not do. \;