2-D Dam-Break Flow Modeling Based on Weighted Average Flux Method

Autor:	Ehsan Fadaei-Kermani, Masoud Montazeri Namin, Mahnaz Ghaeini-Hessaroeyeh
Rok vydání:	2021
Předmět:	Finite volume method Spacetime Discretization Mathematical analysis Flux Type (model theory) Geotechnical Engineering and Engineering Geology symbols.namesake Riemann problem symbols Shallow water equations Civil and Structural Engineering Mathematics Communication channel
Zdroj:	Iranian Journal of Science and Technology, Transactions of Civil Engineering. 46:1515-1525
ISSN:	2364-1843 2228-6160
Popis:	A two-dimensional flow model based on shallow water equations is developed for modeling dam-break flows. The spatial discretization is obtained by the finite volume cell centered type method. The numerical system is solved in explicit way. The flux modeling has been deployed by TVD WAF scheme with a second-order accuracy in both time and space. The local Riemann problem is solved by the HLLC method in the interface of the cells. The numerical model is verified by comparison of model results and analytical solutions. Then the results of numerical model are compared with available experimental data of dam-break waves in a channel with 90° and 180° deviation angle and in a straight channel over a triangular bottom sill. The results confirm the reasonable performance of the present model in predicting dam-break waves.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4c5105219024d5b4ec195b875de8d1b2 https://doi.org/10.1007/s40996-021-00708-6 Zobrazit plný text záznamu Full text from SpringerLink