High-resolution Relaxed Scheme for Dam-break Problems

Author

Hu, Yan-Mei ; Chen, Jian-Zhong

Author_Institution

Coll. of Sci., Chang´´an Univ., Xi´´an, China

Volume

1

fYear

2010

fDate

4-6 June 2010

Firstpage

330

Lastpage

333

Abstract

Numerical models are an important tool to simulate dam-break flows. A high-resolution relaxed scheme is proposed for simulating one-dimensional dam-break problems. The scheme is based on combining relaxation approximation with an improved fifth-order weighted essentially nonoscillatory (WENO) reconstruction and third-order strong stability preserving (SSP) Runge-Kutta scheme. The new method enjoy the main advantage of the relaxation schemes, namely it avoid Riemann solvers, characteristic decomposition and the computation of Jacobians. The numerical experiments demonstrate the efficiency of our method.

Keywords

Runge-Kutta methods; dams; failure analysis; geotechnical engineering; structural engineering; WENO reconstruction; dam break problems; fifth-order weighted essentially nonoscillatory reconstruction; high-resolution relaxed scheme; third-order SSP Runge-Kutta scheme; Automation; Computational modeling; Educational institutions; Equations; Floods; Humans; Jacobian matrices; Magnetohydrodynamics; Stability; Water conservation; WENO reconstruction; dam-break problems; relaxed scheme; shallow water equations;

fLanguage

English

Publisher

ieee

Conference_Titel

Information and Computing (ICIC), 2010 Third International Conference on

Conference_Location

Wuxi, Jiang Su

Print_ISBN

978-1-4244-7081-5

Electronic_ISBN

978-1-4244-7082-2

Type

conf

DOI

10.1109/ICIC.2010.90

Filename

5514168