Numerical study of flow over periodically deforming circular cylinder

被引：1
|
作者：
Zheng, Haicheng [1 ,2 ]
Shi, Bing [1 ]
Yu, Qian [1 ]
Zhao, Enjin [1 ]
机构：
[1] Ocean Univ China, Coll Engn, Qingdao 266100, Peoples R China
[2] Qingdao Univ Sci & Technol, Coll Electromech Engn, Qingdao 266100, Peoples R China
来源：
COMPUTERS & FLUIDS | 2016年 / 136卷
关键词：
Lattice Boltzmann method; Deformation; Vortex pattern; Drag; LATTICE BOLTZMANN METHOD; NONIDEAL GASES; MODELS; SUSPENSIONS; CAPSULES; EQUATION;
D O I：
10.1016/j.compfluid.2016.05.024
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
Two-dimensional incompressible fluid flows over a periodically deforming circular cylinder are simulated with lattice Boltzmann method for Reynolds number 200. The periodic deformation is controlled by the ratios of deforming amplitude relative to the cylindrical radius and deforming frequency relative to natural vortex shedding frequency. The flow features are mainly decided by the periodic deformation. So three deforming amplitude ratios (0.05, 0.075, 0.1) are considered and deforming frequency ratios range from 0.75 to 2.0. The vortex structures are divided into three categories and two type transitional structures are observed. The correlation between vortex shedding patterns and periodic deformation is analyzed. In addition, the impact of periodic deformation to drag coefficient is studied. Numerical results show that special deformation can reduce the drag. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：348 / 353
页数：6
相关论文
共 50 条
  • [31] Numerical flow visualization of vortex shedding flow over a circular cylinder near a plane boundary
    Lei, C
    Cheng, L
    Kavanagh, K
    PROCEEDINGS OF THE NINTH (1999) INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, VOL II, 1999, 1999, : 204 - 211
  • [32] Flow over an inline oscillating circular cylinder in the wake of a stationary circular cylinder
    Zhang, Yang
    Zhu, Keqiang
    FLUID DYNAMICS RESEARCH, 2017, 49 (01)
  • [33] Numerical simulations of flow past a circular cylinder
    Chopra, Gaurav
    Mittal, Sanjay
    FIFTEENTH ASIAN CONGRESS OF FLUID MECHANICS (15ACFM), 2017, 822
  • [34] Numerical Study of Porous Treatments on Controlling Flow around a Circular Cylinder
    Xu, Chen
    Wang, Shihao
    Mao, Yijun
    ENERGIES, 2022, 15 (06)
  • [35] NUMERICAL STUDY OF FLOW AROUND A CIRCULAR CYLINDER AT HIGH REYNOLDS NUMBER
    JAIN, PC
    BELOV, IA
    RAO, KS
    NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1970, 17 (04): : 666 - &
  • [36] Numerical study of the blockage effects on viscous flow past a circular cylinder
    Anagnostopoulos, P
    Iliadis, G
    Richardson, S
    INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS, 1996, 22 (11) : 1061 - 1074
  • [37] Steady non–Newtonian flow past a circular cylinder: a numerical study
    R. P. Chhabra
    A. A. Soares
    J. M. Ferreira
    Acta Mechanica, 2004, 172 : 1 - 16
  • [38] Numerical study on compressible flow arounda circular cylinder in proximity to the wall
    Liu, Yulu
    Ding, Zhihong
    Tao, Yizhou
    Qu, Junwang
    Xie, Xilin
    Qiu, Xiang
    PHYSICS OF FLUIDS, 2023, 35 (06)
  • [39] A numerical study of sound field radiated by the flow around a circular cylinder
    ZHU Zhichi and ZENG Lingzhong(Tsinghua University
    ChineseJournalofAcoustics, 1992, (01) : 17 - 30
  • [40] DRAG FORCE ON A DEFORMING SPHERE AND CIRCULAR CYLINDER
    LIN, SP
    MECHANICAL ENGINEERING, 1970, 92 (10) : 69 - &
12345