Straightforward discretisation of Green function and free-surface potential flow around a three-dimensional lifting body

A straightforward evaluation approach of free-surface Green function is developed to solve the potential flow around a three-dimensional lifting body. The free-surface waves generated by the movement of the lifting body is presented in an expansion of plane regular waves traveling in θ directions wi...

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Bibliographic Details
Published in:Journal of marine science and technology 2017-03, Vol.22 (1), p.149-161
Main Authors: Chen, Zhi-Min, Liu, Qiang, Price, W. G.
Format: Article
Language:English
Subjects:
Aerodynamics
Automotive Engineering
Engineering
Engineering Design
Engineering Fluid Dynamics
Finite element analysis
Fluid dynamics
Fluid mechanics
Free surfaces
Green's functions
Lifting bodies
Marine
Marine technology
Mathematical models
Mechanical Engineering
Ocean waves
Offshore Engineering
Original Article
Potential flow
Texts
Three dimensional bodies
Three dimensional flow
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Summary:A straightforward evaluation approach of free-surface Green function is developed to solve the potential flow around a three-dimensional lifting body. The free-surface waves generated by the movement of the lifting body is presented in an expansion of plane regular waves traveling in θ directions with wave number magnitudes k > 0 . A boundary element method is combined with the evaluation approach and Hess-Smith panel integral formulae to predict hydrodynamic performance of a three-dimensional lifting body. Numerical results produced by the proposed method are compared favourably with experimental measurements.
ISSN:0948-4280
1437-8213
DOI:10.1007/s00773-016-0400-3