Title
A 2D extension of a Large Time Step explicit scheme (CFL1) for unsteady problems with wet/dry boundaries
Abstract
A 2D Large Time Step (LTS) explicit scheme on structured grids is presented in this work. It is first detailed and analysed for the 2D linear advection equation and then applied to the 2D shallow water equations. The dimensional splitting technique allows us to extend the ideas developed in the 1D case related to source terms, boundary conditions and the reduction of the time step in the presence of large discontinuities. The boundary conditions treatment as well as the wet/dry fronts in the case of the 2D shallow water equations require extra effort. The proposed scheme is tested on linear and non-linear equations and systems, with and without source terms. The numerical results are compared with those of the conventional scheme as well as with analytical solutions and experimental data.
Year
DOI
Venue
2014
10.1016/j.jcp.2014.01.019
Journal of Computational Physics
Keywords
DocType
Volume
conventional scheme,analytical solution,boundary conditions treatment,boundary condition,shallow water equation,dry boundary,proposed scheme,source term,unsteady problem,explicit scheme,large time step,linear advection equation
Journal
263,
ISSN
Citations 
PageRank 
0021-9991
3
0.47
References 
Authors
6
3
Name
Order
Citations
PageRank
M. Morales-Hernández131.14
M. E. Hubbard2123.19
P. García-Navarro3809.99