Validation and Analysis of the Reynolds-Stress Model SSG/LRR-ω for Wall-Bounded Flows with Mean-Streamline Curvature
Vellala SL, Knopp T (2026)
Publication Type: Book chapter / Article in edited volumes
Publication year: 2026
Journal
Publisher: Springer Nature
Series: Notes on Numerical Fluid Mechanics and Multidisciplinary Design
Book Volume: 156
Pages Range: 791-802
DOI: 10.1007/978-3-032-11115-9_73
Abstract
The Reynolds stress model SSG/LRR-ω is validated and analysed for turbulent boundary layer flows with mean-streamline curvature. The computational set-up for convex and concave curvature test cases in almost zero streamwise pressure gradient was designed for selected experiments in the literature. The geometries in the curved region were developed using a simple gradient-descent-based shape optimisation technique. Different RANS models were compared, i.e., linear eddy viscosity models such as SA/SA-RC and SST/SST-RC, and the SSG/LRR-ω model. For the latter, different redistribution models (SSG, LRR and the blended SSG/LRR-ω) for the pressure-strain correlation in combination with different turbulent diffusion models (SGDH, GGDH) were investigated for convex and concave curvature test cases. For the convex curvature test case, the SSG/LRR-ω gives the best agreement with the experimental data. For the case of concave curvature, SSG/LRR-ω gives a better agreement with the experiment than other redistribution models, but open questions arise due to the presence of Taylor-Görtler vortices.
Involved external institutions
Germany (DE)How to cite
APA:
Vellala, S.L., & Knopp, T. (2026). Validation and Analysis of the Reynolds-Stress Model SSG/LRR-ω for Wall-Bounded Flows with Mean-Streamline Curvature. In (pp. 791-802). Springer Nature.
MLA:
Vellala, Srinivas L., and Tobias Knopp. "Validation and Analysis of the Reynolds-Stress Model SSG/LRR-ω for Wall-Bounded Flows with Mean-Streamline Curvature." Springer Nature, 2026. 791-802.
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