Study on the mechanism of flexible deformation affecting the hydrodynamic performance of oscillating hydrofoil

IF 4.6 2区工程技术 Q1 ENGINEERING, CIVIL

Ocean Engineering Pub Date : 2024-11-27 DOI:10.1016/j.oceaneng.2024.119884

Penglei Ma, Xianzhuo Shen, Bowen Qiao, Cheng Ye, Yingchun Xie, Guijie Liu

{"title":"Study on the mechanism of flexible deformation affecting the hydrodynamic performance of oscillating hydrofoil","authors":"Penglei Ma, Xianzhuo Shen, Bowen Qiao, Cheng Ye, Yingchun Xie, Guijie Liu","doi":"10.1016/j.oceaneng.2024.119884","DOIUrl":null,"url":null,"abstract":"<div><div>The declining natural environment and rising energy demand have led to increased interest in oscillating hydrofoil structures for their high energy extraction efficiency and environmental benefits. In this study, the numerical simulation method is used to study the mechanism of flexible deformation affecting the hydrodynamic performance of hydrofoil. The results show that the flexible deformation can increase the average power coefficient (<em>C</em><sub><em>P</em></sub>) by increasing the lift, but it will also aggravate the dynamic stall of the hydrofoil, which has many effects on the hydrodynamic performance of the hydrofoil. Then, the double flexible hydrofoil structure coupled with flexible deformation and dynamic wing-in-ground effect is studied, its hydrodynamic performance is obviously better than other types of hydrofoils. the average power coefficient is 2.51 % higher than that of single flexible hydrofoil and 25.03 % higher than that of double rigid hydrofoil. This shows the superiority of the double flexible hydrofoil structure.</div></div>","PeriodicalId":19403,"journal":{"name":"Ocean Engineering","volume":"315 ","pages":"Article 119884"},"PeriodicalIF":4.6000,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ocean Engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0029801824032220","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}

引用次数: 0

Abstract

The declining natural environment and rising energy demand have led to increased interest in oscillating hydrofoil structures for their high energy extraction efficiency and environmental benefits. In this study, the numerical simulation method is used to study the mechanism of flexible deformation affecting the hydrodynamic performance of hydrofoil. The results show that the flexible deformation can increase the average power coefficient (C_P) by increasing the lift, but it will also aggravate the dynamic stall of the hydrofoil, which has many effects on the hydrodynamic performance of the hydrofoil. Then, the double flexible hydrofoil structure coupled with flexible deformation and dynamic wing-in-ground effect is studied, its hydrodynamic performance is obviously better than other types of hydrofoils. the average power coefficient is 2.51 % higher than that of single flexible hydrofoil and 25.03 % higher than that of double rigid hydrofoil. This shows the superiority of the double flexible hydrofoil structure.

查看原文本刊更多论文

影响振荡水翼水动力性能的柔性变形机理研究

随着自然环境的恶化和能源需求的增加，振荡水翼结构因其能源提取效率高和环境效益好而受到越来越多的关注。本研究采用数值模拟方法研究了柔性变形对水翼水动力性能的影响机理。结果表明，柔性变形可以通过增加升力来提高平均功率系数（CP），但同时也会加剧水翼的动态失速，对水翼的水动力性能产生诸多影响。随后，研究了柔性变形和动态翼入地效应耦合的双柔性水翼结构，其水动力性能明显优于其他类型的水翼，平均功率系数比单柔性水翼高 2.51%，比双刚性水翼高 25.03%。这表明了双柔性水翼结构的优越性。

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分钟内获得全文求助全文

来源期刊

Ocean Engineering 工程技术-工程：大洋

CiteScore

7.30

自引率

34.00%

发文量

2379

审稿时长

8.1 months

期刊介绍： Ocean Engineering provides a medium for the publication of original research and development work in the field of ocean engineering. Ocean Engineering seeks papers in the following topics.