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 |
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来源: IOP | |
【 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.
【 预 览 】
Files | Size | Format | View |
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Flow structure interaction around an axial-flow hydrokinetic turbine: Experiments and CFD simulations | 815KB | download |