Verification of a new radiation condition for two ships advancing in waves

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

3-D Rankine source method is used to investigate the hydrodynamic interactions between two ships arranged side by side with forward speed. The radiation condition is satisfied by using a modified Sommerfeld radiation condition which takes into account the Doppler shift of the scattered waves. This new radiation condition is applicable to a wide range of forward speeds, including very low forward speed problem where the parameter τ (τ= uω/. g) is smaller than 0.25. The numerical solution is evaluated by applying the present method to two pairs of models and compared with experimental data and Green function method. Through the comparison study, we verify the new radiation condition and examine the wave patterns for a full range of forward speeds. Discussions are highlighted on the effect of the radiation conditions.

LanguageEnglish
Pages186-201
Number of pages16
JournalApplied Ocean Research
Volume48
Early online date16 Sep 2014
DOIs
Publication statusPublished - 1 Oct 2014

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Ships
Radiation
Doppler effect
Green's function
Hydrodynamics

Keywords

  • forward speed
  • hydrodynamic interaction
  • radiation condition
  • Rankine source method
  • wave pattern

Cite this

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title = "Verification of a new radiation condition for two ships advancing in waves",
abstract = "3-D Rankine source method is used to investigate the hydrodynamic interactions between two ships arranged side by side with forward speed. The radiation condition is satisfied by using a modified Sommerfeld radiation condition which takes into account the Doppler shift of the scattered waves. This new radiation condition is applicable to a wide range of forward speeds, including very low forward speed problem where the parameter τ (τ= uω/. g) is smaller than 0.25. The numerical solution is evaluated by applying the present method to two pairs of models and compared with experimental data and Green function method. Through the comparison study, we verify the new radiation condition and examine the wave patterns for a full range of forward speeds. Discussions are highlighted on the effect of the radiation conditions.",
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Verification of a new radiation condition for two ships advancing in waves. / Yuan, Zhi-Ming; Incecik, Atilla; Day, A H.

In: Applied Ocean Research, Vol. 48, 01.10.2014, p. 186-201.

Research output: Contribution to journalArticle

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AB - 3-D Rankine source method is used to investigate the hydrodynamic interactions between two ships arranged side by side with forward speed. The radiation condition is satisfied by using a modified Sommerfeld radiation condition which takes into account the Doppler shift of the scattered waves. This new radiation condition is applicable to a wide range of forward speeds, including very low forward speed problem where the parameter τ (τ= uω/. g) is smaller than 0.25. The numerical solution is evaluated by applying the present method to two pairs of models and compared with experimental data and Green function method. Through the comparison study, we verify the new radiation condition and examine the wave patterns for a full range of forward speeds. Discussions are highlighted on the effect of the radiation conditions.

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