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Investigation of hull-form effects on ship hydrodynamics using a time-domain iterative rankine HOBEM

  • Harbin Institute of Technology Weihai

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A higher-order boundary element method (HOBEM) with Rankine source as the kernel function is adopted. Then, a 3D time-domain seakeeping analysis tool has been newly developed. The computational domain is rectangular and travels at ship's speed. An artificial damping beach for satisfying the radiation condition was installed at the outer portion of the free surface. For updating kinematic and dynamic free-surface boundary conditions, an iterative time-marching scheme is employed to achieve numerical accuracy and stability. The problem of a ship advancing forward in incident waves is simulated, and the resultant diffraction forces acting on the hull are evaluated to validate this numerical model. To investigate the hull-form effects on naval hydrodynamics, three modified Wigley models are used for comparative study. Wave exciting forces on these three different Wigley models over a wide range of incident-wave frequencies are calculated and analyzed. Finally, the corresponding unsteady wave patterns around the hulls are illustrated and discussed.

Original languageEnglish
Title of host publicationProceedings of the 25th International Ocean and Polar Engineering Conference, ISOPE 2015
PublisherInternational Society of Offshore and Polar Engineers
Pages1006-1011
Number of pages6
ISBN (Electronic)9781880653890
StatePublished - 2015
Externally publishedYes
Event25th International Ocean and Polar Engineering Conference, ISOPE 2015 - Kona, Big Island, United States
Duration: 21 Jun 201526 Jun 2015

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
Volume2015-January
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Conference

Conference25th International Ocean and Polar Engineering Conference, ISOPE 2015
Country/TerritoryUnited States
CityKona, Big Island
Period21/06/1526/06/15

Keywords

  • Boundary element method
  • Exciting forces
  • Iterative scheme
  • Rankine panel method
  • Wigley hull

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