An Implicit Time-Domain Rankine Panel Method for Ship Motions in a Non-Inertial Body-Fixed Frame of Reference

Hui Liang, Yanlin Shao, Kie Hian Chua, Allan Magee

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Abstract

Evaluation of wave loads on a ship translating in water waves is of practical importance in ship hydrodynamics, because it is paramount to the design of ship hull structures and provides essential inputs for ship maneuvering analysis. The linear radiation and diffraction of water waves by a translating ship is studied in this paper. A time-domain Rankine panel method is developed in a non-inertial body-fixed coordinate system, which is able to consider large-amplitude horizontal motions consistently. The double-body flow is used as the basic steady flow model. To ensure numerical stability, an implicit Euler scheme is adopted for time marching, and horizontal derivatives on the free surface are calculated using an upwind-biased finite difference scheme. Numerical examples in comparison with experimental measurements are exhibited to demonstrate the validity of the developed solver.
Original languageEnglish
Title of host publicationProceedings of the ASME 2022 : 41st International Conference on Ocean, Offshore and Arctic Engineering (OMAE2022)
Number of pages9
Volume5A
PublisherThe American Society of Mechanical Engineers (ASME)
Publication date2022
Article numberV05AT06A039
ISBN (Electronic)978-0-7918-8589-5
DOIs
Publication statusPublished - 2022
Event41st International Conference on Ocean, Offshore and Arctic Engineering - Hamburg, Germany
Duration: 5 Jun 202210 Jun 2022

Conference

Conference41st International Conference on Ocean, Offshore and Arctic Engineering
Country/TerritoryGermany
CityHamburg
Period05/06/202210/06/2022

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