ON THE DIFFRACTION PROBLEM BETWEEN TWO SHIPS ADVANCING IN OBLIQUE SEA.

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Abstract

The diffraction problem between two fixed slender ships moving in oblique waves is formulated. The boundary value problem is linearized with the assumption of small wave amplitude and motion response and solved by the method of integral equation. For keeping the convective term, i. e. U** PARTIAL /// PARTIAL //x, a three-dimensional phi //D is assumed in the strip theory. After integrating the pressure and the exciting force, the three-dimensional potential is replaced by the two-dimensional one which can be solved by the kinematical boundary conditions on each contour. The hydrodynamic interaction between two ships with speed effect is included, which causes significantly different results from the single ship case. Two models, Series 60 ship and Mariner, are used for calculations. For lack of experimental data, the comparisons are only made with the single ship to see the effect of the hydrodynamic interaction. The effects of the interaction and speed with different clearances are concluded to be important and can not be neglected.

Original languageEnglish
Pages (from-to)146-156
Number of pages11
JournalInternational Shipbuilding Progress
Volume34
Issue number396
Publication statusPublished - 1987 Aug 1

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All Science Journal Classification (ASJC) codes

  • Ocean Engineering
  • Mechanical Engineering

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