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http://dx.doi.org/10.3796/KSFT.2003.39.1.027

Calculation of Nonlinear Interactions between Hydrofoil and Free-Surface by the High-Order Spectral/Boundary-Integral Method  

김용직 (부경대학교)
하영록 (부경대학교)
Publication Information
Journal of the Korean Society of Fisheries and Ocean Technology / v.39, no.1, 2003 , pp. 27-32 More about this Journal
Abstract
Under the assumption of potential flow, free-surface flow around a hydrofoil is calculated by the high-order spectra1!boundary-integral method, This method is one of the most efficient numerical methods by which the nonlinear interactions between hydrofoil and free-surface can be simulated in time-domain. In this method. the wave potential which represents the nonlinear evolution of free-surface is solved by the high-order spectral method and the body potential which provides the effects of hydrofoil and shed vortex is solved by the boundary-integral method. The calculated free-surface profiles which are generated by a uniformly translating hydrofoil are compared with other experimental results. And they show relatively good agreements each other. As another example, free-surface flow generated by a heaving and translating hydrofoil is calculated and discussed.
Keywords
Hydrofoil; Free-surface; Potential Flow; Numerical Calculation; High-Order Spectral/Boundary-Integral Method;
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1 Duncan, J.H. (1983) : The Breaking and Non-Breaking Wave Resistance of a Two-Dimensional Hydrofoil, J. of Fluid Mech., Vol. 126, 507-520.   DOI   ScienceOn
2 Brigham, E.O. (1988) : The Fast Fourier Transform, Prentice-Hall International, Inc.
3 Dommermuth, D.G. and Yue, D.K. (1987) : A High-Order Spectral Method for the Study of Nonlinear Gravity Waves, J. of Fluid Mech., Vol. 184, 267-288.   DOI   ScienceOn
4 김용진.황종홀(1992) : 고차 스펙트럴법에 의한 2차원 수치 파수조 개발에 관한 연구, 대한조선학회 논문집, 제29권, 제3호, 131-139.   과학기술학회마을
5 Newman, J.N. (1977) : Marine Hydrodynamics, The MIT Press.
6 Suh, J.C. (1990) : Unsteady Analysis for a Two-Dimensional Foil in Uniformly Sheared Onset Flow, Ph.D.Thesis, Univ. of Michigan, USA.
7 Lee, J.T. (1987) : A Potential Based Panel Method for the Analysis of Marine Propellers in teady Flow", Ph.D.Thesis, MIT, USA.