Study of the 1D Saint-Venant Equations and Application to the Simulation of a Flood Problem

• 作者: Bisso Saley
• 来源期刊: 应用数学与应用物理(英文)
• 学科: 数学
• 关键词: Shallow Water Equations Hyperbolic System Finite Volume Method Weak Solution
• 年，卷（期）: 2020,（7）
• 页码范围: 1193-1206
• 页数: 14页
• 分类号: O17

摘要

In this paper we are concerned with the mathematical and numerical analysis of the one-dimensional Saint-Venant equations. Thus, we prove the existence of a weak solution for any fixed time and with low regularity on the data. For the numerical approach we use the Rusanov scheme to approximate the flux and the hydrostatic reconstruction method which consists of decentering the source term at the interface. A numerical test of the proposed resolution is performed on a non-uniform topography.