Numerical optimization of compressible flow mixing based on optimization algorithms

The numerical simulation has been performed on more than 400 models with different geometries according to the finitevolume steady-state method. The structured meshes were generated within the computational domain. Steam was taken as the working fluid and it was assumed a real gas with a nonlinear relationship between pressure and density. All governing equations have been discretized with a second-order upwind scheme and solved by implicit method. The numerical results verified with experimental measurements obtained from a pilot model of steam ejector. The outcomes of applying the obtained validated method on several ejector models enables us to develop the practical characteristic curves based on nondimensional parameters which further leading to achieve optimized shape selection for ejectors.