A Numerical Estimation of Interactions between Foils and Hulls of Hydrofoil Catamaran

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  • 水中翼付き双胴船の船体と水中翼の相互干渉
  • スイチュウヨク ツキ ソウドウ セン ノ センタイ ト スイチュウヨク ノ ソ

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Abstract

The hydrofoil catamaran model which is built up with the twin Wigley hulls and the tandem fore and aft set of hydrofoils is used for the numerical calculation and the experiments of this model was performed at Kyushu University. In this paper, combining with a Rankine source method, the SQCM (a simple panel method) is applied to the unsymmetrical flow problem around catamarans. And the running attitude of the model is not fixed in both the calculation and the experiments. Comparing with the experiment we show the interaction between hulls and the hydrofoils for the lift and the wave-making resistance in the high speed range.

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