自然杂志 ›› 2021, Vol. 43 ›› Issue (6): 420-429.doi: 10.3969/j.issn.0253-9608.2021.06.004

• 特约专稿 • 上一篇    下一篇

近壁圆柱绕流尾流的特性

李姜华,王伯福,邱翔,周全,刘宇陆①②   

  1. ①上海大学 力学与工程科学学院/上海市应用数学和力学研究所,上海 200072;②上海应用技术大学 理学院, 上海 201400
  • 收稿日期:2021-08-19 出版日期:2021-10-25 发布日期:2021-12-21
  • 通讯作者: 王伯福,通信作者,上海市优秀青年力学学者,研究方向:流动稳定性、湍流热对流以及机器学习在流体力学中的应用。
  • 作者简介:周全,国家杰出青年科学基金获得者,研究方向:湍流和热对流。E-mail: qzhou@shu.edu.cn
  • 基金资助:
    国家自然科学基金重点项目(12032016)、国家自然科学基金项目(91952102)、上海市教育委员会和上海市教育发展基金会“曙光计划”(18SG53)

Characteristics of flow over a circular cylinder closed to a wall

LI Jianghua, WANG Bofu, QIU Xiang, ZHOU Quan, LIU Yulu①②   

  1. ①School of Mechanics and Engineering Science/Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, China; ②School of Science, Shanghai Institute of Technology, Shanghai 201400, China
  • Received:2021-08-19 Online:2021-10-25 Published:2021-12-21

摘要: 近壁圆柱绕流是许多工程问题分析简化的物理模型。圆柱尾流与壁面边界层的相互作用产生了复杂而丰富的多尺度湍流结构。文章对工程中由这种湍流结构引起的圆柱涡脱落频率、圆柱所受阻力和升力的变化,以及这种湍流结构的产生和演化的规律进行了综述和分析,并对进一步开展的研究提出了建议。

关键词:  , 圆柱绕流尾流;边界层;相互作用

Abstract:  The flow over a circular cylinder near a wall is a simplified model from many practical engineering applications. There will be complex and abundant multiscale turbulent structures because of the interaction between the wake of a circular cylinder and the wall boundary layer. In this article, the changes in the frequency of vortex shedding, the drag and lift of the cylinder caused by this turbulent structure in engineering with the generation and evolution of this turbulent structure are summarized and analyzed. And some suggestions for further research are put forward.