TY - JOUR
T1 - Spanwise length effects on three-dimensional modelling of flow over a circular cylinder
AU - Cheng, Liang
AU - Kavanagh, Kenneth
AU - Lei, C.
PY - 2001
Y1 - 2001
N2 - In this study, both the two-dimensional (2-D) and three-dimensional (3-D) vortex shedding flows around a circular cylinder are solved using a finite difference method. Numerical experiments are carried out to investigate the spanwise length effects on the prediction of global parameters and the near-wake flow field. The calculated Reynolds number is 1000. The results indicate clearly that the 2-D simulation gives inaccurate predictions at the present Reynolds number. The predictions are significantly improved in 3-D simulations, but inaccuracies may also occur if the spanwise length is set too small. Good agreement with experimental data can be achieved with spanwise lengths above twice the cylinder diameters. (C) 2001 Elsevier Science B.V. All rights reserved.
AB - In this study, both the two-dimensional (2-D) and three-dimensional (3-D) vortex shedding flows around a circular cylinder are solved using a finite difference method. Numerical experiments are carried out to investigate the spanwise length effects on the prediction of global parameters and the near-wake flow field. The calculated Reynolds number is 1000. The results indicate clearly that the 2-D simulation gives inaccurate predictions at the present Reynolds number. The predictions are significantly improved in 3-D simulations, but inaccuracies may also occur if the spanwise length is set too small. Good agreement with experimental data can be achieved with spanwise lengths above twice the cylinder diameters. (C) 2001 Elsevier Science B.V. All rights reserved.
U2 - 10.1016/S0045-7825(00)00272-3
DO - 10.1016/S0045-7825(00)00272-3
M3 - Article
VL - 190
SP - 2909
EP - 2923
JO - Computer Methods in Applied Mechanics and Engineering
JF - Computer Methods in Applied Mechanics and Engineering
IS - 22-23
ER -