Numerical simulation of viscous flow past two circular cylinders of different diameters

被引:136
作者
Zhao, M
Cheng, L
Teng, B
Liang, DF
机构
[1] Univ Western Australia, Sch Civil & Resource Engn, Crawley, WA 6009, Australia
[2] Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian 116024, Peoples R China
基金
中国国家自然科学基金; 中国博士后科学基金;
关键词
two circular cylinders; vortex shedding; shedding frequency; drag and lift;
D O I
10.1016/j.apor.2004.10.002
中图分类号
P75 [海洋工程];
学科分类号
0814 ; 081505 ; 0824 ; 082401 ;
摘要
Viscous flow past two circular cylinders of different diameters is simulated by using a finite element method. The diameter ratio between the small cylinder and the large one is 0.25. The Reynolds number based on the diameter of the cylinders is 500 for the large cylinder and 125 for the small cylinder. The gap between the small cylinder and the large cylinder ranges from 0.05 to 1.0 times the diameter of the large cylinder. The position angle of the small cylinder relative to the flow direction ranges from 0 to pi. The effects of the gap ratio between the two cylinders and the position angle of the small cylinder on drag and lift coefficients, pressure distributions around the cylinders, the vortex shedding frequencies from the two cylinders and flow characteristics are investigated. The magnitudes and frequencies of the fluctuating forces acting on the two cylinders are compared with those on a single cylinder of an equivalent diameter. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:39 / 55
页数:17
相关论文
共 21 条
[1]   INTERACTION BETWEEN A PAIR OF CIRCULAR-CYLINDERS NORMAL TO A STREAM [J].
BEARMAN, PW ;
WADCOCK, AJ .
JOURNAL OF FLUID MECHANICS, 1973, 61 (NOV20) :499-&
[2]   NUMERICAL STUDY AND PHYSICAL ANALYSIS OF THE PRESSURE AND VELOCITY-FIELDS IN THE NEAR WAKE OF A CIRCULAR-CYLINDER [J].
BRAZA, M ;
CHASSAING, P ;
MINH, HH .
JOURNAL OF FLUID MECHANICS, 1986, 165 :79-130
[3]   The suppression of lift on a circular cylinder due to vortex shredding at moderate Reynolds numbers [J].
Dalton, C ;
Xu, Y ;
Owen, JC .
JOURNAL OF FLUIDS AND STRUCTURES, 2001, 15 (3-4) :617-628
[4]   Numerical study of incompressible flow about fixed cylinder pairs [J].
Jester, W ;
Kallinderis, Y .
JOURNAL OF FLUIDS AND STRUCTURES, 2003, 17 (04) :561-577
[5]   THE ANALYSIS OF UNSTEADY INCOMPRESSIBLE FLOWS BY A 3-STEP FINITE-ELEMENT METHOD [J].
JIANG, CB ;
KAWAHARA, M .
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS, 1993, 16 (09) :793-811
[6]   INVESTIGATION OF THE FLOW BETWEEN A PAIR OF CIRCULAR-CYLINDERS IN THE FLOPPING REGIME [J].
KIM, HJ ;
DURBIN, PA .
JOURNAL OF FLUID MECHANICS, 1988, 196 :431-448
[7]   Vortex shedding suppression for flow over a circular cylinder near a plane boundary [J].
Lei, C ;
Cheng, L ;
Armfield, SW ;
Kavanagh, K .
OCEAN ENGINEERING, 2000, 27 (10) :1109-1127
[8]   A finite difference solution of the shear flow over a circular cylinder [J].
Lei, C ;
Cheng, L ;
Kavanagh, K .
OCEAN ENGINEERING, 2000, 27 (03) :271-290
[9]   Numerical simulation of flow interference between two circular cylinders in tandem and side-by-side arrangements [J].
Meneghini, JR ;
Saltara, F ;
Siqueira, CLR ;
Ferrari, JA .
JOURNAL OF FLUIDS AND STRUCTURES, 2001, 15 (02) :327-350
[10]  
Mittal S, 1997, INT J NUMER METH FL, V25, P1315, DOI 10.1002/(SICI)1097-0363(19971215)25:11<1315::AID-FLD617>3.0.CO