On some numerical aspects of aerodynamic inverse design of turbomachinery cascades

摘要

An aerodynamic inverse design method for turbomachine cascades is presented and is implemented in a cell-vertex finite volume method on unstructured triangular meshes. In this desing method, the mass-averaged swirl schedule (ro pressure jump across the baldes) and the blade thickness distribution are prescribed. The design mehtod then provides the blade shape that would accomplish this pressure jump via a transpiration model and, at the same time, would satisfy the balde boundary condition; the latter implies that the flow is tangent to the balde surfaces.