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Absorbing boundary condition for floating two-dimensional objects in current and waves

โœ Scribed by L. M. Sierevogel; A. J. Hermans

Publisher
Springer
Year
1996
Tongue
English
Weight
878 KB
Volume
30
Category
Article
ISSN
0022-0833

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โœฆ Synopsis

In this paper an absorbing boundary condition for floating two-dimensional objects in current and waves is studied. A numerical algorithm has been developed, which computes the velocity potential in the physical time domain, by using an artificial boundary to split the infinite fluid domain into a computational part and a residual part. A special Green's function has been developed in the residual part. The condition on the artificial boundary is independent of wave frequency, hence not restricted to harmonic waves. Because of the smaller computational domain and the independence of frequency, the time to compute the hydrodynamic coefficients of floating objects decreases.

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