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Nonlinear effects of wave heights on coupled sloshing and seakeeping responses

Lookup NU author(s): Dr Xin WangORCiD

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Abstract

Copyright © 2018 ASME. With increased activities in natural gas transportation and offshore exploration in the past decades, assessment of sloshing in liquefied natural gas (LNG) tanks has become an important practical issue. In this paper, we focus on the deterministic calculation of the coupled sloshing and ship motions in regular wave conditions. An in-house numerical code is used to solve the seakeeping problem coupled with the sloshing dynamics. The numerical method adopts a weakly nonlinear approach using impulse response functions for the seakeeping problem. Nonlinear Froude-Krylov and hydrostatic forces are directly evaluated in the time domain. A three-dimensional finite difference method is applied to solve the sloshing problem. The numerical method is validated by comparing with experimental results in the literature. The developed numerical method is used to analyze the nonlinear effects of wave heights.

Publication metadata

Author(s): Wang X, Arai M, Karuka G

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 37th International Conference on Ocean, Offshore and Arctic Engineering - OMAE

Year of Conference: 2018

Pages: -

Online publication date: 22/06/2018

Acceptance date: 17/06/2018

Publisher: American Society of Mechanical Engineers (ASME)

URL: https://doi.org/10.1115/OMAE2018-78232

DOI: 10.1115/OMAE2018-78232

Library holdings: Search Newcastle University Library for this item

ISBN: 9780791851302

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