2D turbine airfoil optimization using physical programming

This paper concerns on the computation and development of 2D turbine airfoil. In order to obtain a turbine blade shape with better performance, a physical programming based multidisciplinary optimization strategy is employed. The aim of multidisciplinary optimization here is to minimize the total pressure loss as well as to maintain a good structural stress. So there must be a compromise between aerodynamic performance and structural performance. And the optimization process studied a range of design factors including the airfoil geometry parameters, the deviation angle, and a two-dimensional k - ε turbulence model. Considering interaction between blade deformation and flow field, the coupled calculation is done by ANSYS software.