Application of Inverse Design Method in Transonic Turbine Blade

In order to reduce the wake mixing losses of a transonic turbine blade, based on inverse design theory, the modification of a transonic turbine blade is studied by load-camber inverse design method. The inverse design method is based on the three-dimensional Reynolds-Averaged Navier-Stokes equations. Blade profiles are constantly modified by a virtual wall velocity which is obtained from the difference between the current and prescribed load. The spring-based smoothing method is applied to update the mesh. The results show that the wake mixing losses is significantly reduced, and the pressure ratio and efficiency are improved compared with those before modification.