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Article

Numerical Study of Hydrodynamics of Heavily Loaded Hard-Chine Hulls in Calm Water

1
School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA
2
Department of Mechanical Engineering, University of Idaho, Moscow, ID 83844, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Gregory Grigoropoulos
J. Mar. Sci. Eng. 2021, 9(2), 184; https://doi.org/10.3390/jmse9020184
Received: 12 January 2021 / Revised: 7 February 2021 / Accepted: 8 February 2021 / Published: 10 February 2021
(This article belongs to the Special Issue Hydrodynamic Design of Ships)
Hard-chine boats are usually intended for high-speed regimes where they operate in the planing mode. These boats are often designed to be relatively light, but there are special applications that may occasionally require fast boats to be heavily loaded. In this study, steady-state hydrodynamic performance of nominal-weight and overloaded hard-chine hulls in calm water is investigated with computational fluid dynamics solver program STAR-CCM+. The resistance and attitude values of a constant-deadrise reference hull and its modifications with more pronounced bows of concave and convex shapes are obtained from numerical simulations. On average, 40% heavier hulls showed about 30% larger drag over the speed range from the displacement to planing modes. Among the studied configurations, the hull with a concave bow is found to have 5–12% lower resistance than the other hulls in the semi-displacement regime and heavy loadings and 2–10% lower drag in the displacement regime and nominal loading, while this hull is also capable of achieving fast planing speeds at the nominal weight with typical available thrust. The near-hull wave patterns and hull pressure distributions for selected conditions are presented and discussed as well. View Full-Text
Keywords: boat hydrodynamics; hard-chine hulls; computational fluid dynamics boat hydrodynamics; hard-chine hulls; computational fluid dynamics
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MDPI and ACS Style

Wheeler, M.P.; Matveev, K.I.; Xing, T. Numerical Study of Hydrodynamics of Heavily Loaded Hard-Chine Hulls in Calm Water. J. Mar. Sci. Eng. 2021, 9, 184. https://doi.org/10.3390/jmse9020184

AMA Style

Wheeler MP, Matveev KI, Xing T. Numerical Study of Hydrodynamics of Heavily Loaded Hard-Chine Hulls in Calm Water. Journal of Marine Science and Engineering. 2021; 9(2):184. https://doi.org/10.3390/jmse9020184

Chicago/Turabian Style

Wheeler, Miles P., Konstantin I. Matveev, and Tao Xing. 2021. "Numerical Study of Hydrodynamics of Heavily Loaded Hard-Chine Hulls in Calm Water" Journal of Marine Science and Engineering 9, no. 2: 184. https://doi.org/10.3390/jmse9020184

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