The effect of a screen shroud on vortex-induced vibration of a circular cylinder and its wake characteristics
This paper aims to investigate the effect of a screen cylinder on vortex-induced vibration (VIV) of a circular cylinder and to understand the wake characteristics behind the shrouded cylinder using a high porosity (67%) screen mesh. The diameter ratio between the screen cylinder and the solid cylind...
| Published in: | Proceedings of the International Offshore and Polar Engineering Conference |
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| Main Author: | |
| Format: | Conference paper |
| Language: | English |
| Published: |
International Society of Offshore and Polar Engineers
2015
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| Online Access: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84944685341&partnerID=40&md5=9634a4e486616ab72f7c4db57c47b738 |
| Summary: | This paper aims to investigate the effect of a screen cylinder on vortex-induced vibration (VIV) of a circular cylinder and to understand the wake characteristics behind the shrouded cylinder using a high porosity (67%) screen mesh. The diameter ratio between the screen cylinder and the solid cylinder is 2. VIV test is conducted first and phase-averaged analysis is used later to examine the vortex structures at x/d = 5-40 in a wind tunnel. It is found that the screen shroud can suppress VIV by about 78%. Phase-averaged analysis of the shrouded cylinder at a low Reynolds number, however, showed a substantial vortex development with significant strength of the coherent structures. Copyright © 2015 by the International Society of Offshore and Polar Engineers (ISOPE). |
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| ISSN: | 10986189 |