Journal
JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS
Volume 146, Issue -, Pages 163-171Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jweia.2015.09.001
Keywords
Vertical axis wind turbine; Dynamic stall; URANS; PIV; Turbulence modelling
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Funding
- Australian-American Fulbright Commission
- Princeton University's Andlinger Center for Energy and the Environment
- National Science Foundation [1336020]
- Fulbright Fellowship
- Directorate For Engineering
- Div Of Chem, Bioeng, Env, & Transp Sys [1336020] Funding Source: National Science Foundation
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Dynamic stall is often found in unsteady aerodynamic flows where the angle of attack can vary over a large range. It is of particular interest in the context of vertical axis wind turbines, where dynamic stall is the principal impediment to achieving improved aerodynamic efficiency. Here, we report computations using the unsteady Reynolds-averaged Navier-Stokes (URANS) equations with the Menter-SST turbulence model on a two-dimensional domain, over a range of tip speed ratios typical of the operation of vertical axis wind turbines. Comparisons are made against high resolution experimental data from particle image velocimetry (Ply), with special attention to the ability of the turbulence model to emulate the turbulence properties of the flow. It is shown that the computations approximate the experimental results well in most respects. (C) 2015 Elsevier Ltd. All rights reserved.
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