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在分析研究现有蜗壳设计理论的基础上，提出了直接给定蜗壳过流断面面积规律进行蜗壳结构设计的方法。对一离心式透平压缩机不同的蜗壳在不同工况条件下的内部流动情况进行了三维可压缩定常流动的数值计算分析并介绍了数值分析结果。
On the basis of analyzing and studying the existing volute design theory, a method is proposed to design the volute structure by directly giving the rule of volute cross section area. The numerical analysis of three-dimensional compressible steady flow and the numerical analysis of the internal flow of different centrifugal compressors under different operating conditions were carried out.