This paper presents the evaluation of Stanford University Unstructured (SU2) open-source computational software package for a high Mach number 5 flow. The test case selected is an impinging shock wave turbulent boundary layer interaction (SWTBLI) on flat plate where experimental data Sch¨ulein et al. [27] used validation purposes. Two turbulence models, Spalart–Allmaras (SA) and k-ω Shear Stres...

This article presents a new turbulence closure based on the k-ω SST model for predicting turbulent flows of Herschel–Bulkley fluids, including Bingham and power-law fluids. The has been calibrated with direct numerical simulations (DNS) data fully-developed pipe flow shear-thinning viscoplastic shows good agreement in mean velocity, average viscosity, shear stress budget friction factor. latter...

One-dimensional unsteady Reynolds-averaged Navier–Stokes computations were performed for oscillatory transitional and turbulent pipe flows the results validated against existing experimental data a wide variety of Reynolds Womersley numbers. An version Johnson–King model was implemented with optional near-wall modification to account temporal pressure gradient variations, predictions compared t...

This study experimentally and numerically investigates the effects of nozzle/needle distance (clearance) supply pressure on single phase compressible gas flow in a micro orifice with needle restriction, which play important roles many engineering applications such as cryogenic cooling MEMS (microelectromechanical systems) device cooling. Nitrogen was used working fluid at pressures ranging from...

The aerodynamic performance of a cylinder Pitot probe for velocity measurements in compressible non-ideal gas flows, such as those encountered Organic Rankine Cycle (ORC) turbines, is investigated by means Computational Fluid Dynamics. Numerical simulations are performed at subsonic and transonic conditions, freestream Reynolds numbers the critical regime. working fluid organic vapour Novec™ 64...

We numerically investigate stalling flow around a static airfoil at high Reynolds numbers using the Reynolds-averaged Navier–Stokes equations (RANS) closed with Spalart–Allmaras turbulence model. An arclength continuation method allows to identify three branches of steady solutions, which form characteristic inverted S-shaped curve as angle attack is varied. Global stability analyses these solu...

The investigation of the turbulence statistics for single-phase turbulent flow around pipe bends have mainly been experimental. Considering cost-effectiveness numerical computational fluid dynamics (CFD) compared to experimental measurement, this work aims study accuracies different CFD models, and establish their functionality limitations. This paper investigates capabilities models spatial di...

A novel penalized wall function method for simulations of wall-bounded compressible turbulent flows is proposed. The new approach based on the Reynolds-averaged Navier–Stokes (RANS) equations to model outer region boundary layer, while inner part approximated by equilibrium model. differential formulation match external and solutions reformulated in a form generalized characteristic-based volum...