An assessment of different turbulence models on a cfd simulation of air flow past a s814 airfoil / Uma avaliação de diferentes modelos de turbulência numa simulação cfd de fluxo de ar passando por um aerofólio s814

Eduardo Corte Real Fernandes, Allan Cavalcante Belo, Alex Maurício Araújo, Augusto Antônio Coutinho da Silva, Ciro Cordeiro de Araújo Bezerra, Guilherme José de Arruda Moura Rocha

Abstract


Turbulence modeling is a crucial part of any CFD simulation, the selection of an appropriate method allows for precise validation and reliable results. This paper aims to investigate which turbulence model is best suitable for a simulation over a S814 airfoil profile at different angles of attack using CFD software ANSYS-Fluent. Literature usually recommends two models for this kind of simulation: κ – ω Shear Stress Transport and Spalart-Allmaras. Both models strength and weakness are tested by performing simulations at the angles of attack: 0º, 5º, 10º, 15º, and 20º. Results were validated with experiments reported in literature and showed that Spalart-Allmaras performed better for lower angles of attack, whereas κ – ω Shear Stress Transport presented the best results at the higher angles of attack.


Keywords


CFD, Turbulence Modeling, ANSYS, Spalart-Allmaras, κ – ω SST.

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DOI: https://doi.org/10.34117/bjdv6n8-299

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