A near wall pressure treatment for Large Eddy Simulation

摘要

An economic pressure solution methodology for wall-bounded Large Eddy Simulation is proposed. Pressure is assumed to remain uniform in the wall-normal direction within a pre-defined region, a condition similar to that exits inside the boundary layer. Computational cost of the pressure Poisson equation is dramatically lessened with the present approach. The performance of this approach is scrutinized by simulating fully developed channel flows at different Reynolds number and the rotor-stator flows and contrasting the predicted results with available DNS and experimental data.