文章基本信息

标题：The Numerical Simulation of Shallow Water: Estimation of the Roughness Coefficient on the Flood Stage:
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作者：Sergey S. Khrapov ; Andrey V. Pisarev ; Ivan A. Kobelev 等
期刊名称：Advances in Mechanical Engineering
印刷版ISSN：1687-8140
电子版ISSN：1687-8140
出版年度：2013
卷号：5
页码：1-11
DOI：10.1155/2013/787016
语种：English
出版社：Sage Publications Ltd.
摘要：The results of the numerical simulations of the dynamics of shallow waters for Volga-Akhtuba Floodplain are discussed. The mathematical model is based on the system of Saint-Venant equations. Numerical solution applies a combined Lagrangian-Eulerian (cSPH-TVD) algorithm. We have investigated the features of the spring flood in 2011 and found the inapplicability of the hydrodynamical model with the constant roughness coefficient nM. We have found a good agreement between the results of numerical simulations and the observational data at gauging stations which allows us to estimate nM in low water nMmin=0.02 and the maximum water level in the river Volga nMmax= 0.06–0.07.