{"title":"A hybrid potential flow model for shedding flow around a circular cylinder","authors":"Vijay Matheswaran, L. Scott Miller","doi":"10.1007/s10665-024-10386-8","DOIUrl":null,"url":null,"abstract":"<p>A Hybrid Potential Flow (HPF) model for flow around a circular cylinder in the subcritical Reynolds number range (<span>\\(300 \\le Re \\le 3\\times 10^5\\)</span>) is developed using a combination of elementary flow solutions and empirical data. By joining this developed near-body solution with von Karman’s model for the vortex wake, a complete solution for flow around a circular cylinder is calculated. Results for oscillatory forces, including the transverse lift force, due to vortex shedding as well as shedding frequencies are then calculated and presented. With the complete solution for flow around a cylinder calculated, the HPF model can be used as a step to calculate the flow around other bluff bodies using conformal mapping, an approach that has been developed and presented by the authors in a related paper.</p>","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2024-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1007/s10665-024-10386-8","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
A Hybrid Potential Flow (HPF) model for flow around a circular cylinder in the subcritical Reynolds number range (\(300 \le Re \le 3\times 10^5\)) is developed using a combination of elementary flow solutions and empirical data. By joining this developed near-body solution with von Karman’s model for the vortex wake, a complete solution for flow around a circular cylinder is calculated. Results for oscillatory forces, including the transverse lift force, due to vortex shedding as well as shedding frequencies are then calculated and presented. With the complete solution for flow around a cylinder calculated, the HPF model can be used as a step to calculate the flow around other bluff bodies using conformal mapping, an approach that has been developed and presented by the authors in a related paper.
结合基本流动解法和经验数据，建立了亚临界雷诺数范围内（（300\le Re \le 3\times 10^5\））环绕圆柱体流动的混合势能流（HPF）模型。通过将所开发的近体解法与 von Karman 的涡流尾流模型相结合，计算出了环绕圆柱体流动的完整解法。然后计算并给出了涡流脱落引起的振荡力（包括横向升力）以及脱落频率的结果。在计算出圆柱体周围流动的完整解决方案后，HPF 模型可作为一个步骤，利用保角映射计算其他崖体周围的流动。
期刊介绍：
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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