CFD analysis of NACA4415 airfoil with γ−Reθ model considering natural transition
Airfoil analysis is essential to wind turbine aerodynamics. In typical operating conditions, airfoils undergo transition from laminar to turbulent flow in the boundary layer in a manner that must be modeled accurately to predict airfoil lift and drag. There are different modes of transition (e.g....
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| Main Authors: | , , , , |
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| Format: | Conference or Workshop Item |
| Language: | English English |
| Published: |
2015
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/56603/1/2_Islam_etal.pdf http://irep.iium.edu.my/56603/13/56603-edited.pdf http://irep.iium.edu.my/56603/ https://vtechworks.lib.vt.edu/handle/10919/54667 |
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| Institution: | Universiti Islam Antarabangsa Malaysia |
| Language: | English English |
| Summary: | Airfoil analysis is essential to wind turbine aerodynamics. In typical operating conditions, airfoils undergo
transition from laminar to turbulent flow in the boundary layer in a manner that must be modeled accurately
to predict airfoil lift and drag. There are different modes of transition (e.g. natural, by-pass, wake induced,
reversed, separated flow) and modeling them is not straight-forward. Over the years, diversified predictions
have been developed for the various modes. One of the popular transition models is the local correlation-based
$\gamma-Re_\theta$ model of Menter et al. \citep{Menter2004}. The model requires data correlations for the
transition length and the critical Reynolds numbers. |
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