Numerical Simulation of Aerodynamic Problems with the SSG/LRR-ω Reynolds Stress Turbulence Model Using the Unstructured TAU Code

Abstract

The SSG/LRR-ω differential Reynolds stress model has been implemented into DLR's unstructured flow solver TAU. The model is a blend between the Speziale-Sarkar-Gatski model (SSG) in the far field and the Launder-Reece-Rodi model (LRR) near walls, combined with Menter's baseline ω-equation for the length scale. The implementation has been checked for the transonic flow around the RAE 2822 airfoil, comparing with the results obtained with DLR's structured flow solver FLOWer. In the following the model is applied to the L1T2 three-element airfoil at high incidence, demonstrating the model's applicability to 2D high-lift problems. Furthermore results are shown for the transonic flow around the two wings of the Third AIAA Drag Prediction Workshop and the ONERA M6 wing.