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Article Dans Une Revue Journal of Physics: Conference Series Année : 2020

Large Eddy Simulation of Transitional Boundary Layer on Horizantal Axis Wind Turbine Blade

Résumé

In boundary layer flow around rotating machines, a radial (or cross-flow) velocity exists due to Coriolis and centrifugal forces. This velocity component can be of great importance for laminar-turbulent transition. A series of direct numerical simulations (DNS) are performed to study the boundary layer flow transition on a rotating Horizontal Axis Wind Turbine blade. To quantify the effect of blade rotation, results are compared with that from airfoil DNS, where the section is taken from 3D blades and does not rotate. It is shown that the rotation gives rise to a small radial velocity and slightly modifies the shape of unstable waves. However, the transition location and mechanism of 3D blade boundary layer flow resemble 2D flow for the investigated case.
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Dates et versions

hal-02888531 , version 1 (30-09-2020)

Identifiants

Citer

Zhenrong Jing, Antoine Ducoin, Caroline Braud. Large Eddy Simulation of Transitional Boundary Layer on Horizantal Axis Wind Turbine Blade. Journal of Physics: Conference Series, 2020, Journal of Physics: Conference Series, 1618, ⟨10.1088/1742-6596/1618/5/052042⟩. ⟨hal-02888531⟩
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