Dynamic Stall of a Pitching and Horizontally Oscillating Airfoil
This paper provides a study of the dynamic stall of a pitching airfoil and of a pitching and horizontally oscillating airfoil at 105 Reynolds number by means of nbumerical simulation. Three turbulence models are compared in both cases: URANS Spalart-Allmaras model, URANS k—ε Chien model and URANS=OES model. results are in accordance with experimental data but spalart model seems to be too much viscous to provide good results and overpredict hysteresis cycle observed where URANS=OES seems to be viscousless. URANS k—ε Chien model is providing the best results.
KeywordsDynamic stall URANS/OES Pitching airfoil Incompressible flow
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