Numerical study of boundary layer flow on downstream moving cascade blades

This study investigates the effects of cascade blades that are passed through the flow. To this end, the characteristics of boundary layer flow is obtained on a fixed plate in downstream. A special moving grid has been introduced for the numerical simulation of flow. In this method, a zone of the grid moves inside the main grid. Regarding the defined plan, the regular changes of grid connections can be carried out by the program. Therefore, movement of different bodies in the flow can be simulated even in large sizes without reducing the quality of grid. In the written code, the unsteady form of the Navier-Stokes equations is solved using an averaging method. For turbulent modeling, a two-equation k −ε model is used. Velocity profile at the boundary layer on the flat plate is calculated. The results are validated with experimental data and good agreements among the results are observed. The results are validated with experimental data and good agreements among the results are observed.