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本文介绍了一个将叶轮机械的准三元设计和全三元流场分析解联结起来的计算方法和程序系统,是文献[13,14]所介绍的准三元和全三元计算工作的继续和发展.在本方法中首先使用一个中心S_2流面与一组S_1迴转面迭代进行叶片的准三元设计,接着使用两类普遍S_1,S_2流面交替迭代,对设计出来的叶片进行全三元流场分析解.该计算方法体现了使用中心S_2流面的优点,即很方便地从准三元扩展到全三元计算,程序结构简单,机器内存不需显著增加,可以得到三维空间沿流面直观的流动图形.算例表明该程序在准三元及全三元计算中的收敛性是很好的,在设计实践中可以得到有效的使用。
This paper presents a calculation method and program system that combines the quasi-ternary design of the impeller with the all-ternary flow field analysis. It is the continuation of the quasi-ternary and all-ternary computations introduced in [13,14] And development.In this method, a center S_2 flow surface and a set of S_1 swirl surfaces are iterated for the quasi-ternary design of the blade, and then the two commonly used S_1 and S_2 flow surface iterations are iteratively performed on the designed blade The calculation method shows the advantage of using the center S_2 flow surface, that is, it is easy to extend from quasi-triad to all-ternary calculation. The program structure is simple, the memory of the machine need not increase significantly, and the three-dimensional space The results show that the convergence of the program in quasi-ternary and all-ternary computations is very good and can be effectively used in design practice.