任意回转面叶栅的近似变分原理及其有限元方程

The Approximate Variational Principle for the Cascade on Arbitrarily Rotational Stream Surfaces(-Function) and Its Finite Element Equation

本文导出了任意回转面叶栅以流函数为基函数的近似变分原理，并与伽辽金加权余量原理进行了比较，结果是一致的。同时，还给出了以此为基础的有限元方程。因此，本文为任意回转面叶栅气动问题的数值解进一步提供了依据。

The approximate variational principle based on -function for the cascade on arbitrarily rotational stream surfaces has been derived and compared with the Galerkin weighted method. The equations derived from the two methods are the same. The finite element equation is also presented, which provides an additional basis for the numerical solution of arbitrarily rotational stream surfaces.