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Experimental study on piston- and sloshing- mode moonpool resonances.
- Source :
- Journal of Marine Science & Technology; Dec2016, Vol. 21 Issue 4, p715-728, 14p
- Publication Year :
- 2016
-
Abstract
- An experimental study was performed on the piston- and sloshing-mode moonpool resonances of offshore structures. Two different geometries were considered to investigate the flow characteristics in a plain moonpool and a moonpool with a cofferdam. To examine the efficiency of a cofferdam for reducing the flow in a moonpool, three cofferdam geometries were tested. The plain moonpool presented violent flows as a result of the piston- and sloshing-mode resonances. However, the moonpool with the cofferdam introduced violent sloshing waves instead of the ascent and descent of the water column in the piston-mode moonpool resonance. Among three different cofferdam geometries, the model with a right triangle facing to the left on the top of the cofferdam was most effective in reducing the flow in the moonpool when compared with the other models. [ABSTRACT FROM AUTHOR]
- Subjects :
- COFFERDAMS
FLUID flow
SLOSHING (Hydrodynamics)
PISTON gages
OFFSHORE structures
Subjects
Details
- Language :
- English
- ISSN :
- 09484280
- Volume :
- 21
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Journal of Marine Science & Technology
- Publication Type :
- Academic Journal
- Accession number :
- 119576984
- Full Text :
- https://doi.org/10.1007/s00773-016-0386-x