Abstract
Flow fields around iced airfoils are analyzed using four different turbulence models: one-equation Baldwin-Earth model, one-equation Spalart-Allmaras model, two-equation k-e model, and twoequation Shear Stress Transport model. Analyses are performed with the WIND code for two ice shapes, rime ice and glaze ice, and compared with experimental data. Results show that predicted stall characteristics of iced airfoils are strongly affected by the choice of turbulence model, implying that an appropriate turbulence model is essential to the accurate prediction of aerodynamic performance of iced airfoils. The influence of turbulence modeling is greater in the glaze ice shape than in the rime ice shape.
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