The effect of lift on the wave-making resistance of multi-hull craft

N. Xie, D. Vassalos, P.G. Sayer

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A potential based panel method is presented to estimate the wave-making characteristics of multi-hull craft. In order to simulate the lifting potential flow around the sub-hulls, the method adopts mixed source/doublet distributions on the sub-hulls and their wake surface, while sources are distributed on the main hull and the free surface. In this way, the asymmetric flow characteristics of the sub-hull are properly simulated, i.e., a Kutta condition is satisfied at the trailing edge of the sub-hull. Comparison is made between the numerical and model experimental measurements, and a good correlation has been found. The wave-making characteristics and pressure distributions on the sub-hull predicted by the present method can differ from those based on a distribution of sources alone, especially the pressure distributions at the stern of the sub-hulls.
LanguageEnglish
JournalInternational Shipbuilding Progress
Volume54
Issue number2-3
Early online date10 Oct 2007
Publication statusPublished - 2007

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Pressure distribution
Potential flow

Keywords

  • multi-hull craft
  • lift
  • panel method
  • potential flow
  • wave-making resistance

Cite this

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The effect of lift on the wave-making resistance of multi-hull craft. / Xie, N.; Vassalos, D.; Sayer, P.G.

In: International Shipbuilding Progress, Vol. 54, No. 2-3, 2007.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The effect of lift on the wave-making resistance of multi-hull craft

AU - Xie, N.

AU - Vassalos, D.

AU - Sayer, P.G.

PY - 2007

Y1 - 2007

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AB - A potential based panel method is presented to estimate the wave-making characteristics of multi-hull craft. In order to simulate the lifting potential flow around the sub-hulls, the method adopts mixed source/doublet distributions on the sub-hulls and their wake surface, while sources are distributed on the main hull and the free surface. In this way, the asymmetric flow characteristics of the sub-hull are properly simulated, i.e., a Kutta condition is satisfied at the trailing edge of the sub-hull. Comparison is made between the numerical and model experimental measurements, and a good correlation has been found. The wave-making characteristics and pressure distributions on the sub-hull predicted by the present method can differ from those based on a distribution of sources alone, especially the pressure distributions at the stern of the sub-hulls.

KW - multi-hull craft

KW - lift

KW - panel method

KW - potential flow

KW - wave-making resistance

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M3 - Article

VL - 54

JO - International Shipbuilding Progress

T2 - International Shipbuilding Progress

JF - International Shipbuilding Progress

SN - 0020-868X

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