Suppressing submerged vortices in a closed pump sump: A novel approach using joint anti-vortex devices

IF 4.3 2区 工程技术 Q1 ENGINEERING, OCEAN Applied Ocean Research Pub Date : 2024-09-17 DOI:10.1016/j.apor.2024.104226
{"title":"Suppressing submerged vortices in a closed pump sump: A novel approach using joint anti-vortex devices","authors":"","doi":"10.1016/j.apor.2024.104226","DOIUrl":null,"url":null,"abstract":"<div><p>The closed sump is a vital inlet structure for low-head tidal pumping stations in coastal regions. The flow instability caused by roof-attached vortices (RAVs) and floor-attached vortices (FAVs) within the sump significantly affects the reliability of the unit operation. Mitigating and eradicating these detrimental vortices is deemed imperative in the realm of engineering applications. Reducing the sources of vortices, improving operating modes, and adding anti-vortex devices (AVDs) are the general ways to suppress the occurrence of vortices. However, few reports exist on the closed pump sumps' joint vortex elimination methods for RAVs and FAVs. Based on a deep understanding of the dynamic evolution behavior of the RAVs and FAVs, a hybrid RANS-LES numerical prediction method is adopted to comprehensively compare the suppression effects of different AVDs on the vortex structure. An effective \"elliptical line anti-vortex cone combined with underwater cover plate\" joint anti-vortex device (JAVD) is proposed and verified through model experiments. The research results provide analytical ideas for improving the flow field of the pump sump and optimizing hydraulic design.</p></div>","PeriodicalId":8261,"journal":{"name":"Applied Ocean Research","volume":null,"pages":null},"PeriodicalIF":4.3000,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Ocean Research","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S014111872400347X","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, OCEAN","Score":null,"Total":0}
引用次数: 0

Abstract

The closed sump is a vital inlet structure for low-head tidal pumping stations in coastal regions. The flow instability caused by roof-attached vortices (RAVs) and floor-attached vortices (FAVs) within the sump significantly affects the reliability of the unit operation. Mitigating and eradicating these detrimental vortices is deemed imperative in the realm of engineering applications. Reducing the sources of vortices, improving operating modes, and adding anti-vortex devices (AVDs) are the general ways to suppress the occurrence of vortices. However, few reports exist on the closed pump sumps' joint vortex elimination methods for RAVs and FAVs. Based on a deep understanding of the dynamic evolution behavior of the RAVs and FAVs, a hybrid RANS-LES numerical prediction method is adopted to comprehensively compare the suppression effects of different AVDs on the vortex structure. An effective "elliptical line anti-vortex cone combined with underwater cover plate" joint anti-vortex device (JAVD) is proposed and verified through model experiments. The research results provide analytical ideas for improving the flow field of the pump sump and optimizing hydraulic design.

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
抑制封闭泵槽中的水下涡流:使用联合防涡装置的新方法
封闭式底盘是沿海地区低扬程潮汐泵站的重要入口结构。底盘内的顶附涡流(RAV)和底附涡流(FAV)造成的流动不稳定性严重影响了设备运行的可靠性。在工程应用领域,缓解和消除这些有害涡流被认为是当务之急。减少涡流源、改进运行模式和增加防涡装置 (AVD) 是抑制涡流发生的一般方法。然而,关于 RAV 和 FAV 的闭式泵集水池联合消除涡流方法的报道却很少。在深入理解 RAV 和 FAV 动态演化行为的基础上,采用 RANS-LES 混合数值预测方法综合比较了不同 AVD 对涡流结构的抑制效果。提出了一种有效的 "椭圆线防涡锥与水下盖板相结合 "的联合防涡装置(JAVD),并通过模型试验进行了验证。研究成果为改善泵底壳流场和优化水力设计提供了分析思路。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Applied Ocean Research
Applied Ocean Research 地学-工程:大洋
CiteScore
8.70
自引率
7.00%
发文量
316
审稿时长
59 days
期刊介绍: The aim of Applied Ocean Research is to encourage the submission of papers that advance the state of knowledge in a range of topics relevant to ocean engineering.
期刊最新文献
Investigation of morphodynamic response to the storm-induced currents and waves in the Bay of Bengal Wave Energy Potential and the Role of Extreme Events on South America's Coasts. A Regional Frequency Analysis Evaluation, sampling and testing methods for offshore disturbed sands with plastic fines: A case study Dynamic response of three different floating platform (OC4, BSS, GVA) using multi-segment mooring system Numerical study of underwater acoustic radiation and propagation induced by structural vibration in ocean environments using FEM-BMSBM
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1