非定常沿岸波流的有限单元分析(Ⅱ)──二步显含有限单元法
Finite Element Analysis for the Unsteady Nearshore Circulation Due to Wave-Current Interaction(Ⅱ) Two-Step Explicit Finite Element Method
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摘要: 本文用二步显含有限单元法求解[1]中提出的非定常沿岸波流相互作用的数学模型,并用程序设计语言Fortran在计算机上加以实现,从若干计算例子中可明显看出涡旋的出现,这和观察到的现象是一致的.Abstract: In this paper,the two-step explicit finite element analysis for the numerical model of the unsteady nearshore circulation proposed in Rart(Ⅰ)and its realization of Fortran program are presented.A circulation has been clearly shown in the calculated wave-current velocity field,and it is in good agreement with observations.
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Key words:
- finite element method /
- unsteady circulation /
- vortex
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[1] 吴伟雄,非定常沿岸波流的有限单元分析(Ⅰ)—数学模型,应用数学和力学,15(8)(1994),713-718. [2] Connor,J.J.and C.A.Brebbia,Finite Element Techniques for Fluid Flow,Butterworth & Co.(Publishers) Ltd.,(1976). [3] Mutsuto Kawahara,Kazuo Kashiyama and Yasuro Iriye,Finite element analysis of coastal process,Finite Element Flow.Analasis,東京大学出版会(1982). -
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