New Approach to the Suction Force at the Leading Edge of a Profile With Zero Thickness

Authors: Sparenberg, J.A.; de Jager, E.M.

Source: Journal of Ship Research, Volume 48, Number 4, December 2004 , pp. 305-310(6)

Publisher: Society of Naval Architects and Marine Engineers (SNAME)

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Abstract:

This paper considers the suction force at the leading edge of a profile with zero thickness in an incompressible and inviscid fluid flow. The theory is linear, and the approach to the suction force is from the innerside of the profile. It is shown that the suction force can be considered as an "integral" over a delta function of Dirac situated at the nose of the profile. An application of the method is given to show that in the linear theory a nonslotted periodically moving profile that does not shed free vorticity cannot yield a nonzero mean thrust.

Document Type: Research article

Publication date: 2004-12-01

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The Journal of Ship Research is a quarterly publication providing highly technical papers on applied research in hydrodynamics, propulsion, ship motions, structures, and vibrations. While the Journal requires that papers present the results of research that advances ship and ocean science and engineering, most contributions bear directly on other disciplines, such as civil and mechanical engineering, applied mathematics, and numerical analysis. High quality papers are contributed from the U.S., Canada and overseas, with representation from established authorities as well as new researchers.
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