Full 3-D inverse design optimization method for turbomachinary blade was studied

which was based on numerical solver of Navier-Stokes equations.Pressure distribution on blade surface was specified for obtaining the corresponding blade profile in inverse problem

assuming there was virtual velocity of grid node on blade surface;blade geometry was modified by the difference between surface pressure and target pressure during iterative procedure.Inverse designs of cascade and optimization example indicate that solution of new blade profile matches target pressure well

which validates effectiveness of this method.The method is practical for engineering applications in time cost and accuracy.