A dynamic wall model for large eddy simulation on unstructured meshes. Application to wind turbine dedicated airfoils
Document typeConference report
Rights accessRestricted access - publisher's policy
Large eddy simulations (LES) of wall resolved flows at high Reynolds number are still computation-ally demanding. In the present work, a new Dynamic Wall Model (DWM) for LES is presented. The methodology, implemented on unstructured meshes and formulated in a general form, takes into account non-equilibrium effects. The DWM is validated with a channel flow at Ret = 4200 by comparing with direct numerical simulation (DNS) from literature. Once the model is verified, it is used to simulate the flow around a wind turbine dedicated airfoil (DU-93-W-210) in stall condition at Re = 3 × 106. Numerical results shows that the current DWM strategy is capable of accurately capturing the flow detachment and transition to turbulence.
CitationCalafell, J., Lehmkuhl, O., Rodriguez, I., Oliva, A., Perez, C. A dynamic wall model for large eddy simulation on unstructured meshes. Application to wind turbine dedicated airfoils. A: International Symposium on Turbulence, Heat and Mass Transfer. "Turbulence, Heat and Mass Transfer 8: proceedings of the Eight International Symposium on Turbulence, Heat and Mass Transfer: Sarajevo, Bosnia and Herzegovina, 15-18 September, 2015". Sarajevo: Begell House, 2015, p. 1-12.
- CTTC - Centre Tecnològic de la Transferència de Calor - Ponències/Comunicacions de congressos 
- TUAREG - Turbulence and Aerodynamics in Mechanical and Aerospace Engineering Research Group - Ponències/Comunicacions de congressos 
- Departament de Màquines i Motors Tèrmics - Ponències/Comunicacions de congressos