Improvements in mass conservation using alternative boundary implementations for a quasi-bubble finite element shallow water model

作者: Shintaro Bunya , Shinobu Yoshimura , Joannes J. Westerink

DOI: 10.1002/FLD.1153

关键词:

摘要: Finite element approaches generally do not guarantee exact satisfaction of conservation laws especially when Dirichlet-type boundary conditions are imposed. This article discusses improvement the global mass property quasi-bubble finite solutions for shallow water equations, focusing on implementations surface-elevation conditions. We propose two alternative implementations, which shown by numerical verification to be effective in improving smoothness near and reducing error. The contributes augmenting reliability robustness long-term time integrations. Copyright © 2006 John Wiley & Sons, Ltd.

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