A finite volume scheme for solving an alternative morphodynamic model with porosity

Q3 Engineering

Pollack Periodica Pub Date : 2023-10-04 DOI:10.1556/606.2023.00907

Abdelhafid Moumna

引用次数: 0

Abstract

Abstract This work proposes an extended numerical scheme based on the finite volume method that is intended to solve a new morphodynamic model with porosity. The St-Venant equations and the Exner equation are coupled in this model, accounting for the variation of the porosity function . In the morphodynamic system, the Jacobian matrix's sign is taken into account when reconstructing the numerical fluxes using an improved Roe's approach to assure correct numerical computations.

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具有孔隙度的可选形态动力学模型的有限体积格式

摘要本文提出了一种基于有限体积法的扩展数值格式，旨在求解一个新的孔隙度形态动力学模型。该模型将St-Venant方程和Exner方程耦合在一起，考虑了孔隙度函数的变化。在形态动力学系统中，采用改进的Roe方法重建数值通量时考虑了雅可比矩阵的符号，保证了数值计算的正确性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Pollack Periodica Engineering-Civil and Structural Engineering

CiteScore

1.50

自引率

0.00%

发文量

期刊介绍： Pollack Periodica is an interdisciplinary, peer-reviewed journal that provides an international forum for the presentation, discussion and dissemination of the latest advances and developments in engineering and informatics. Pollack Periodica invites papers reporting new research and applications from a wide range of discipline, including civil, mechanical, electrical, environmental, earthquake, material and information engineering. The journal aims at reaching a wider audience, not only researchers, but also those likely to be most affected by research results, for example designers, fabricators, specialists, developers, computer scientists managers in academic, governmental and industrial communities.