SIAM Journal on Applied Mathematics
Solution of the Cauchy problem for a conservation law with a discontinuous flux function
SIAM Journal on Mathematical Analysis
SIAM Journal on Applied Mathematics
A Difference Scheme for Conservation Laws with a Discontinuous Flux: The Nonconvex Case
SIAM Journal on Numerical Analysis
Convergence of a Difference Scheme for Conservation Laws with a Discontinuous Flux
SIAM Journal on Numerical Analysis
Journal of Computational Physics
The DFLU flux for systems of conservation laws
Journal of Computational and Applied Mathematics
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We describe a class of finite volume schemes for 2x2 systems of conservations laws based on a ''local'' decomposition of the system into a series of single conservation laws but with discontinuous coefficients. The resulting schemes are based on Godunov type solvers of the reduced equations. These schemes are very easy to implement since they do not use detailed information about the eigenstructure of the full system. We illustrate the efficiency of the schemes on a variety of numerical experiments focusing on three-phase flows in porous media and show that they are robust and approximate the flow very well, even in the presence of gravity.