On validation of multi-level method for simulation of flow around a mega-float: Comparison of numerical calculation with model experiment

Hideyuki Omori, Yusaku Kyozuka, Changhong Hu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A multi-level model for the calculation of tidal flow and material diffusion of a bay has been developed to simulate ocean environmental problems. Recently, it has been extended to the problem of a bay with a very large floating structure or a mega-float. However, the validation of the application is required before the model can be generalized, because the multi-level model is based on a quasi-three dimensional method with hydrostatic pressure approximation. In this paper, results of a model experiment are compared with those of numerical calculations and the applicability of multi-level model is discussed. In the model experiments, the flow around a towed pontoon was measured. The draft was changed to investigate the effect of draft/water depth ratio, and the mass-flux below a pontoon was estimated from the measured velocity profile. Then measured distributions of velocity and mass-flux below the pontoon are compared with calculations by a multi-level model in which the existence of a mega-float is taken into account.

Original languageEnglish
Title of host publicationProceedings of the International Offshore and Polar Engineering Conference
EditorsJ.S. Chung, C.H. Kim, M. Olagnon, S. Naito
PublisherInt Soc of Offshore and Polar Engineerns (ISOPE)
Pages595-602
Number of pages8
Volume1
Publication statusPublished - 1997
Externally publishedYes
EventProceedings of the 1997 7th International Offshore and Polar Engineering Conference. Part 3 (of 4) - Honolulu, HI, USA
Duration: May 25 1997May 30 1997

Other

OtherProceedings of the 1997 7th International Offshore and Polar Engineering Conference. Part 3 (of 4)
CityHonolulu, HI, USA
Period5/25/975/30/97

All Science Journal Classification (ASJC) codes

  • Ocean Engineering

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