Gericke, J. (Corresponding author) ; Masilamani, K. ; Klimach, H. ; Spinelli, G.

2025
Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag Jülich

Abstract: This work investigates the influence of the blending parameter 𝜎 on the Hybrid Recursive Regularized BGK collision scheme with and without a correction term on the selection of LES and wall model. The comparison is done using the well-known turbulent channel flow test case at a friction REYNOLDS number of 1,000. The wall is either modeled via the implicit Musker profile or explicitly with a combination of the Werner and Wengle and the Schmitt profile. The considered LES models are the Wall-Adapting Local Eddy-viscosity (WALE) and the Vreman model. For the discretization of the velocity space both, the D3Q19 and D3Q27 stencil are considered. Different resolutions of the channel are studied, leading to 𝑦+ values of the first cell at the wall of 12.5, 25 and 50. The entire range of 𝜎 values in the interval [0.0, 1.0] is analyzed.