کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4993272 1457620 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Wake structure of a single vertical axis wind turbine
ترجمه فارسی عنوان
ساختار باد یک توربین بادی محور عمودی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
The wake structure behind a vertical axis wind turbine (VAWT) is both measured in a wind tunnel using particle imaging velocimetry (PIV) and computed with large-eddy simulation (LES). Geometric and dynamic conditions are closely matched to typical applications of VAWTs (ReD ∼ 1.8 × 105). The experiments and computations were highly coordinated with continuous two-way feedback to produce the most insightful results. Good qualitative agreement is seen between the computational and experimental results. The dependence of the wake structure on the tip speed ratio, TSR, is investigated, showing higher asymmetry and larger vortices at the lower rotational speed, due to stronger dynamic stall phenomena. Instantaneous, ensemble-averaged and phase-averaged fields are discussed, as well as the dynamics of coherent structures in the rotor region and downstream wake.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Fluid Flow - Volume 61, Part A, October 2016, Pages 75-84
نویسندگان
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