...Axel Buck; Christian Mundt Purpose Reynolds-averaged Navier–Stokes (RANS) models often perform poorly in shock/turbulence interaction regions, resulting in excessive wall heat load and incorrect representation of the separation length in shockwave/turbulent boundary layer interactions. The authors...

...Cornelia Grabe; Florian Jäckel; Parv Khurana; Richard P. Dwight Purpose This paper aims to improve Reynolds-averaged Navier Stokes (RANS) turbulence models using a data-driven approach based on machine learning (ML). A special focus is put on determining the optimal input features used for the ML...

... at: jiangchen2007@hotmail.com 25 12 2020 01 03 2021 03 03 2021 © Emerald Publishing Limited 2021 Emerald Publishing Limited Licensed re-use rights only RANS Turbulent flows CS-FEM k-e model Stabilized pressure gradient projection (SPGP) Streamline-upwind/Petrov-Galerkin...

...-step mechanism. However, even for the cold flow, the computational cost of LES is tremendous. Therefore, simplified or tabulated chemistry is commonly used in such simulations. Meanwhile, there are some literature studies about unsteady Reynolds averaged Navier–Stokes (RANS) simulation of the ignition...

...Gaurav Kumar; Ashoke De; Harish Gopalan Purpose Hybrid Reynolds-averaged Navier–Stokes large eddy simulation (RANS-LES) methods have become popular for simulation of massively separated flows at high Reynolds numbers due to their reduced computational cost and good accuracy. The current study aims...

...Slawomir Kubacki; Jacek Rokicki; Erik Dick Purpose Applicability of two k‐ω hybrid RANS/LES and a k‐ω RANS models is studied for simulation of round impinging jets at nozzle‐plate distance H/D=2 with Reynolds number 70000, H/D=2 with Reynolds number 5000 and H/D=10 with Reynolds number 5000 (D...