Numerical Analysis of Fully Three-Dimensional Flow in Transonic Turbine Cascades

In order to calculate transonic flows in highly three-dimensionally twisted turbine blade cascades, the finite volume integral method of solving the governing equations is implemented for the treatment of boundary conditions and the discretization scheme. The developed scheme reduces the discretization error associated with the distorted gird configuration of highly three-dimensional blades. With the developed method, flows in two typical turbine blade cascades has been calculated with two kinds of treatment of energy equation.