Selective lumping finite element method for nearshore current
作者:
Mutsuto Kawahara,
Kazuo Kashiyama,
期刊:
International Journal for Numerical Methods in Fluids
(WILEY Available online 1984)
卷期:
Volume 4,
issue 1
页码: 71-97
ISSN:0271-2091
年代: 1984
DOI:10.1002/fld.1650040106
出版商: John Wiley&Sons, Ltd
关键词: Nearshore Current;Two Step Explicit Scheme;Linear Interpolation Function;Fujisawa Coast
数据来源: WILEY
摘要:
AbstractA finite element method for the analysis of nearshore current, which is one of the principal currents in coastal seas, is presented in this paper. Because the nearshore current is induced by the variable distribution of the surface waves, it is necessary to analyse two main characteristics of the wave, i.e. direction and height. The current can be computed using the resulting wave characteristics. The present method makes it possible to employ procedures for which the same methods of solution are applicable for all basic equations of wave direction, height and current flow. The linear interpolation function is used for the discretization of spatial variables and a selective lumping two step explicit scheme is employed for the numerical integration in time. The numerical solutions obtained are compared with analytical, experimental and observed ones. From these comparative studies, it is concluded that the present finite element method provide a useful tool for the analysis of nearshore current.
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