Modelling Bending Behaviour of Flexible Submerged Vegetation Based on Fluid–Structure Coupling

IF 2.5 3区环境科学与生态学 Q2 ECOLOGY

Ecohydrology Pub Date : 2025-03-08 DOI:10.1002/eco.70011

Chen Yang, Tingkui Zhang, Zichao Han, Fan He, Ying Liu, Shanju Zhang, Xiaolei Zhang

{"title":"Modelling Bending Behaviour of Flexible Submerged Vegetation Based on Fluid–Structure Coupling","authors":"Chen Yang, Tingkui Zhang, Zichao Han, Fan He, Ying Liu, Shanju Zhang, Xiaolei Zhang","doi":"10.1002/eco.70011","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>The bending behaviour of flexible submerged vegetation in water flow has been an important issue in ecological hydraulics; however, the understanding of its laws is still not in-depth enough, and a comprehensive exploration of the governing parameters remains lacking. To address this gap, a three-dimensional numerical model based on fluid–structure coupling was built in this paper and validated by experimental data. Utilizing this model, the bending behaviour of a single vegetation in various scenarios was simulated and analysed. The relationships between the relative bending height (RBH) and critical variables such as flow velocity, vegetation radius, elastic modulus and submergence ratio were found and fitted with different types of equations. Through multiple regression, a comprehensive formula to estimate the RBH of single submerged flexible vegetation was derived based on the simulation results. The formula established in this paper can quickly characterize the bending state of flexible vegetation in water, providing a basis for calculating water flow resistance and contributing to ecological, engineering and environmental studies.</p>\n </div>","PeriodicalId":55169,"journal":{"name":"Ecohydrology","volume":"18 2","pages":""},"PeriodicalIF":2.5000,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ecohydrology","FirstCategoryId":"93","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/eco.70011","RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ECOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

The bending behaviour of flexible submerged vegetation in water flow has been an important issue in ecological hydraulics; however, the understanding of its laws is still not in-depth enough, and a comprehensive exploration of the governing parameters remains lacking. To address this gap, a three-dimensional numerical model based on fluid–structure coupling was built in this paper and validated by experimental data. Utilizing this model, the bending behaviour of a single vegetation in various scenarios was simulated and analysed. The relationships between the relative bending height (RBH) and critical variables such as flow velocity, vegetation radius, elastic modulus and submergence ratio were found and fitted with different types of equations. Through multiple regression, a comprehensive formula to estimate the RBH of single submerged flexible vegetation was derived based on the simulation results. The formula established in this paper can quickly characterize the bending state of flexible vegetation in water, providing a basis for calculating water flow resistance and contributing to ecological, engineering and environmental studies.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Ecohydrology 环境科学-生态学

CiteScore

5.10

自引率

7.70%

发文量

116

审稿时长

24 months

期刊介绍： Ecohydrology is an international journal publishing original scientific and review papers that aim to improve understanding of processes at the interface between ecology and hydrology and associated applications related to environmental management. Ecohydrology seeks to increase interdisciplinary insights by placing particular emphasis on interactions and associated feedbacks in both space and time between ecological systems and the hydrological cycle. Research contributions are solicited from disciplines focusing on the physical, ecological, biological, biogeochemical, geomorphological, drainage basin, mathematical and methodological aspects of ecohydrology. Research in both terrestrial and aquatic systems is of interest provided it explicitly links ecological systems and the hydrologic cycle; research such as aquatic ecological, channel engineering, or ecological or hydrological modelling is less appropriate for the journal unless it specifically addresses the criteria above. Manuscripts describing individual case studies are of interest in cases where broader insights are discussed beyond site- and species-specific results.