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The Science of Making Torque from Wind 2012
Flow structure interaction around an axial-flow hydrokinetic turbine: Experiments and CFD simulations
Kang, S.^1 ; Chamorro, L.^1 ; Hill, C.^1 ; Arndt, R.^1 ; Sotiropoulos, F.^1
St. Anthony Falls Laboratory, University of Minnesota, Minneapolis
MN, United States^1
关键词: Boundary layer equations;    Flow-structure interaction;    Hydrokinetic turbines;    Immersed boundary;    Parameterization method;    Stationary components;    Turbulent stress;    Velocity boundary condition;   
Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/555/1/012097/pdf
DOI  :  10.1088/1742-6596/555/1/012097
来源: IOP
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【 摘 要 】

We carry out large-eddy simulation of turbulent flow past a complete hydrokinetic turbine mounted on the bed of a straight rectangular open channel. The complex turbine geometry, including the rotor and all stationary components, is handled by employing the curvilinear immersed boundary (CURVIB) method [1], and velocity boundary conditions near all solid surfaces are reconstructed using a wall model based on solving the simplified boundary layer equations [2]. In this study we attempt to directly resolve flow-blade interactions without introducing turbine parameterization methods. The computed wake profiles of velocities and turbulent stresses agree well with the experimentally measured values.

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