Wake interactions of two horizontal axis tidal turbines in tandem

doi:10.1016/j.oceaneng.2022.111331

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Wake interactions of two horizontal axis tidal turbines in tandem
	Kang, SeokKoo 4; Kim, Youngkyu 4; Lee, Jiyong 3; Khosronejad, Ali 2,3; Yang, Xiaolei 2
刊名	OCEAN ENGINEERING
	2022-06-15
卷号	254 页码:12
关键词	Horizontal axis tidal turbine Flow measurement Turbine wake Turbulence Open-channel flow
ISSN号	0029-8018
DOI	10.1016/j.oceaneng.2022.111331
通讯作者	Kang, SeokKoo(kangsk78@hanyang.ac.kr)
英文摘要	The wake interactions between two horizontal axis model tidal turbines for two different spacings were investigated by flow measurements using acoustic Doppler velocimetry (ADV). The analysis of the velocity time-series data showed that a velocity sampling time period of at least 1000 integral time scales is required for the convergence of turbulence statistics in the wake of the turbines. The velocity measurement showed that a distinct three-layer (core, inner, and outer) structure was observed in the wake of a single turbine, whereas a simple wake pattern without such a structure was observed downstream of the two turbines. The comparison between the measurements for the different turbine spacings showed that the mean velocity fields, turbulent stress fields, velocity spectra plots, and integral length scales behind the second turbine were nearly independent of the turbine spacing. It was concluded that the increased turbulent momentum transfer across the wake boundary, mainly due to the wake meandering motion by the first turbine, overshadows the effect of the first turbine. This suggests that the ambient turbulence intensity induced by the upstream turbine could be a key factor for the wake characteristics within a tidal turbine array.
资助项目	Infrastructure and Transportation Technology Promotion Research Program - Ministry of Land, Infrastructure and Transport of the Korean government[21CTAP-C163624-01]
WOS关键词	MARINE CURRENT TURBINES ; HYDROKINETIC TURBINES ; ARRAY CONFIGURATION ; RESOURCE ASSESSMENT ; FREE-SURFACE ; FLOW ; PERFORMANCE ; TURBULENCE ; POWER ; HYDRODYNAMICS
WOS研究方向	Engineering ; Oceanography
语种	英语
WOS记录号	WOS:000798666300002
资助机构	Infrastructure and Transportation Technology Promotion Research Program - Ministry of Land, Infrastructure and Transport of the Korean government
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/89462]
专题	力学研究所_非线性力学国家重点实验室
通讯作者	Kang, SeokKoo
作者单位	1.Univ Minnesota, St Anthoruy Falls Lab, Minneapolis, MN 55455 USA 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 3.SUNY Stony Brook, Coll Engn & Appl Sci, Dept Civil Engn, Stony Brook, NY 11794 USA 4.Hanyang Univ, Dept Civil & Environm Engn, Seoul 04763, South Korea
推荐引用方式 GB/T 7714	Kang, SeokKoo,Kim, Youngkyu,Lee, Jiyong,et al. Wake interactions of two horizontal axis tidal turbines in tandem[J]. OCEAN ENGINEERING,2022,254:12.
APA	Kang, SeokKoo,Kim, Youngkyu,Lee, Jiyong,Khosronejad, Ali,&Yang, Xiaolei.(2022).Wake interactions of two horizontal axis tidal turbines in tandem.OCEAN ENGINEERING,254,12.
MLA	Kang, SeokKoo,et al."Wake interactions of two horizontal axis tidal turbines in tandem".OCEAN ENGINEERING 254(2022):12.