MEASUREMENT OF STERN FLOW FIELD OF A SHIP IN OBLIQUE TOWING MOTION
This paper describes the results of an investigation on the stern flow field of a ship in oblique towing motion. Three VLCC ship models were used with the same principal dimensions but different stern forms, a V shaped stern, a U shaped stern and a medium shape stern between the V and U shaped stern. It was found that there was no qualitative difference between the stern flow field of the three model ships in oblique towing motions, the characteristics of which are represented by two groups of separating vortices. However, there are clear differences in strength, concentration and range of distribution of wake and vorticity among three model ships. There is little difference in the magnitude of hydrodynamic forces acting on the model ship in oblique towing motion, but there is a clear difference in the centre of pressure that has a serious effect on ship manoeuvrability.
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Supplemental Notes:
- J Soc Naval Arch Japan, v 177, June 1995, p 29 [12 p, 2 tab]
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Authors:
- Nonaka, K
- Nimura, T
- Publication Date: 1995
Language
- Japanese
Subject/Index Terms
- TRT Terms: Concrete forms; Flow fields; Sterns
- Uncontrolled Terms: Towed vessels
- Old TRIS Terms: Stern flow; Stern form
- Subject Areas: Marine Transportation; Materials;
Filing Info
- Accession Number: 00717725
- Record Type: Publication
- Source Agency: British Maritime Technology
- Files: TRIS
- Created Date: Mar 4 1996 12:00AM