Parametric Study on the Aerodynamic Design of Axial-Flow Turbine Blades Using Two-Dimensional Navier-Stokes Equations

Navier-Stokes 방정식에 의한 축류터빈 블레이드의 공력학적 설계변수 특성 연구

A design method for transonic turbine blades is developed based on Navier-Stokes equations. The present computing process is done on the four separate steps, 1.e., determination of the blade profile, generation of the computational grids, cascade flow simulation and analysis of the computed results in the sense of the aerodynamic performance. The blade shapes are designed using the cubic polynomials under the control of the design parameters. Numerical methods for the flow equations are based on Van-Leer's FVS with an upwind TVD scheme on the finite volume. Applications are made to the VKI transonic rotor blades. Computed results are analyzed with respect to the aerodynamic performance and are compared with the experimental data.