URANS numerical simulations of pulsating flows considering streamwise pressure gradient on asymmetric diffuser

Abstract The paper focuses on implementing the wall model developed by Manhart, in Reynolds Averaged Navier - Stokes (RANS) turbulence models used field of Computational Fluid Dynamics (CFD). This considers influence streamwise pressure gradient addition to existing usual CFD codes. In present work, two RANS numerical simulations are carried out using k-ω Shear Stress Transport (SST) an asymmetric diffuser geometry. One simulation is implementation Manhart SST model, and other performed standard formulation model. compared with experimental measurements made installation. a free, open-source tool, Code_Saturne. comparisons between data good agreement boundary layer flow inside diffuser. had faster convergence resulting shorter time.