A parametric study of energy extraction from vortex-induced vibrations

被引：6
|
作者：
Pare-Lambert, Olivier [1 ]
Olivier, Mathieu [1 ]
机构：
[1] Univ Laval, Lab Mecan Fluides Numer, Dept Genie Mecan, Quebec City, PQ G1V 0A6, Canada
来源：
TRANSACTIONS OF THE CANADIAN SOCIETY FOR MECHANICAL ENGINEERING | 2018年 / 42卷 / 04期
关键词：
hydrokinetic turbine; fluid-structure interaction; computational fluid dynamics; vortex-induced vibrations; CIRCULAR-CYLINDER; LOW-MASS; FREQUENCY-RESPONSE; CROSS-FLOW; DYNAMICS;
D O I：
10.1139/tcsme-2017-0071
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This paper presents a parametric investigation of an oscillating-cylinder turbine concept based on vortex-induced vibrations. The parametric space includes four parameters: the Reynolds number, the mass ratio, the dimensionless stiffness, and the dimensionless damping. The damping-stiffness space is explored for four different mass ratios at a fixed Reynolds number of 200. Also, the influence of the parameters on the amplitude of cylinder displacement and on the efficiency of power harnessing is discussed. Vortex-shedding patterns observed within the parametric space are investigated. The 2S, 2P, and C(2S) wake modes are observed and are related to turbine performance. Preliminary results show a maximum efficiency of 10.6%, which is obtained with low mass ratios.
引用
收藏
页码：359 / 369
页数：11
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