Simulation of dam-break waves on movable beds using a multi-stage centered scheme

作     者：Stefania EVANGELISTA Mustafa S.ALTINAKAR Cristiana DI CRISTO Angelo LEOPARDI 

作者机构：Dipartimento di Ingegneria Civile e MeccanicaUniversita degli Studi di Cassino e del Lazio Meridionale NCCHENational Center for Computational Hydroscience and EngineeringUniversity of Mississippi 

出 版 物：《International Journal of Sediment Research》 (国际泥沙研究(英文版))

年 卷 期：2013年第28卷第3期

页      面：269-284页

核心收录：

学科分类：08[工学] 081501[工学-水文学及水资源] 0815[工学-水利工程] 

主　　题：Dam break Sediment transport Shallow water Multi-stage scheme GMUSTA 

摘      要：This paper presents the application of the multi-stage first-order centered scheme GMUSTA to solve a two-phase flow model with four equations for simulating dam-break floods without and with sediment *** of generalized Riemann invariants can be particularly complex and costly in simulating dam-break floods with sediment *** numerical scheme,which does not require complete knowledge of the eigenstructure of the hyperbolic mathematical model,offers a suitable and attractive *** quality of the dam-break flood simulations with GMUSTA scheme is verified by comparing the results against laboratory tests and some experimental data available in the literature,on fixed and mobile bed conditions,with different bed materials and flush or stepped *** numerical results reproduce quite well the experimental evidence,proving that the model is capable of predicting the temporal evolution of the free-surface and the *** GMUSTA scheme,which is not only simple to implement but also both accurate and computationally efficient,is proposed as an appropriate tool for integrating non-equilibrium sediment-transport models.