Plausibility Check of the Inverse Design and Optimization Method for Cascade Flow by Means of ANSYS CFX Software

Absztrakt

The goal of the present numerical investigation is to verify the correct and plausible operation of the DASFLOW inverse design based in-house optimization tool for cascade flow by the application of ANSYS CFX. Compressible Euler equations are considered in the academic code and a finite volume method has been implemented to solve the governing equations numerically. NACA 65-410 profile has been adopted for constructing a 2D cascade and for providing initial geometry. Stratford’s separation prediction method with constrained Sequential Quadratic Programming has been used to determine the optimum pressure distribution at given boundary conditions along the suction side. The optimum pressure distribution is imposed in the inverse design mode of the DASFLOW for evolution of the corresponding contour belonging to that required pressure distribution. Following the determination of the expected profile with the flow field, the results are compared with the outcomes of the ANSYS CFX in inviscid and viscous mode also at the same geometry, mesh, boundary conditions, material properties and physical settings.