Title:
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A dynamic wall model for large eddy simulation on unstructured meshes. Application to wind turbine dedicated airfoils
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Author:
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Calafell Sandiumenge, Joan; Lehmkuhl Barba, Oriol; Rodríguez Pérez, Ivette María; Oliva Llena, Asensio; Pérez Segarra, Carlos David
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics; Universitat Politècnica de Catalunya. CTTC - Centre Tecnològic de la Transferència de Calor; Universitat Politècnica de Catalunya. TUAREG - Turbulence and Aerodynamics in Mechanical and Aerospace Engineering Research Group |
Abstract:
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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. |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids -Fluid dynamics--Computer simulation -Aerodynamics--Computer simulation -Dinàmica de fluids -- Simulació numérica -Aerodinàmica -- Simulació per ordinador |
Rights:
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Document type:
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Article - Published version Conference Object |
Published by:
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Begell House
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