Measurements of hydrodynamic forces, surface pressure, and wake for obliquely towed tanker model and uncertainty analysis for CFD validation |
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Authors: | Kenichi Kume Jun Hasegawa Yoshiaki Tsukada Junichi Fujisawa Ryohei Fukasawa Munehiko Hinatsu |
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Institution: | (1) National Maritime Research Institute, 6-38-1 Shinkawa, Mitaka, Tokyo 181-0004, Japan |
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Abstract: | This article presents hydrodynamic forces and moments, surface pressures, estimated side force distributions, and wakes under
oblique towing conditions for a practical tanker model (model KVLCC2M), which was designed by the Korea Research Institute
of Ships and Ocean Engineering (KRISO). Ship offset data is readily available and can be obtained from the Internet. The model
ship has no appendages and no rudder. Trim and sinkage were adjusted to zero in the static condition and the model ship was
constrained against any motion. Although the drift angle β was primarily set to 0°, 6°, and 12°, other settings were used in some experiments. All experimental results were processed
using uncertainty analysis. The uncertainty analyzing method follows the ANSI/ASME Performance Test Code (PTC19.1-1985) and
the AIAA Standard S-071-1995. Only a few error components were considered here and they were empirically chosen because they
had a heavy weighting when used in the uncertainty calculation. The results of these towing tank experiments will contribute
to the development of computational fluid dynamics (CFD) research in ship hydrodynamics. |
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Keywords: | Towing tank test Oblique towing Uncertainty CFD validation |
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