Characteristics of Flow over two Tandem Cylinders of Different Diameters

DOI

10.2991/emcs-15.2015.144How to use a DOI?

Keywords

Navier-Stokes equations; Tandem cylinders; Lift coefficients; Pressure distribution; Finite element method

Abstract

Two-dimensional flow over two circular cylinders of different diameters in tandem arrangement at low Reynolds numbers has been numerically investigated in this study. The diameter ratio between the upstream control cylinder and the downstream one was varied from 0.1 to 1.0. The studied Reynolds number based on the diameter of the downstream main cylinder were 100 and 150. The gap between the control cylinder and the main cylinder ranged from 0.1 to 4.0 times the diameter of the main cylinder. Mutual interference between the two cylinders at close proximity, however, caused significant change in parameters of the hydrodynamic characteristics, such as fluctuating lift forces, fluctuating pressure distributions, when the spacing between the cylinders was changed. The changes in these hydrodynamic characteristics were systematically analyzed in this study. It is concluded that the gap ratio and the diameter ratio between the two cylinders have important effects on the lift coef cients and pressure distribution.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yongtao Wang
PY  - 2015/01
DA  - 2015/01
TI  - Characteristics of Flow over two Tandem Cylinders of Different Diameters
BT  - Proceedings of the International Conference on Education, Management, Commerce and Society
PB  - Atlantis Press
SP  - 705
EP  - 709
SN  - 2352-5398
UR  - https://doi.org/10.2991/emcs-15.2015.144
DO  - 10.2991/emcs-15.2015.144
ID  - Wang2015/01
ER  -