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Hydrodynamics of single-deadrise hulls and their catamaran configurations

Ghazi S. Bari|Konstantin I. Matveev
대한조선학회 (The Society Of Naval Architects Of Korea)|2017.05|International Journal of Naval Architecture and Ocean Engineering|제9권 제3호|pp. 305-314

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참고문헌

키워드

Potential flowNumerical modelingPlaningAsymmetric hullsCatamarans
주제분류조선공학

초록

Asymmetric planing hulls are often used on high-speed catamarans. In this study, a linearized potential-flow method is applied for modeling steady hydrodynamics of single asymmetric hulls and their catamaran setups. Numerical results are validated with available experimental data and empirical correlations. Parametric calculation results are presented for the lift coefficient and the center of pressure for variable hull geometry, spacings, and speed regimes. The lift coefficient is found to increase at smaller hull spacings and decrease at higher Froude numbers and higher deadrise angles.

Abstract

Asymmetric planing hulls are often used on high-speed catamarans. In this study, a linearized potential-flow method is applied for modeling steady hydrodynamics of single asymmetric hulls and their catamaran setups. Numerical results are validated with available experimental data and empirical correlations. Parametric calculation results are presented for the lift coefficient and the center of pressure for variable hull geometry, spacings, and speed regimes. The lift coefficient is found to increase at smaller hull spacings and decrease at higher Froude numbers and higher deadrise angles.

참고문헌 (26)

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