Hydrodynamic Drag of Semisubmerged Ships

[+] Author and Article Information
R. B. Chapman

Naval Undersea Center, San Diego, Calif.

J. Basic Eng 94(4), 879-884 (Dec 01, 1972) (6 pages) doi:10.1115/1.3425581 History: Received July 19, 1972; Online October 27, 2010


Linearized theory for wave-making resistance is applied to semisubmerged ships. Theoretical and experimental values are compared for submerged hulls, struts, and struts in tandem. Strut forms producing minimum wave-making resistance are calculated at several speeds and water plane areas for a typical submerged hull. Struts are described in terms of step functions to facilitate an investigation of multiple struts including the effect on drag of decreased wetted surface area.

Copyright © 1972 by ASME
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