Abstract
We are interested in the problem of coupling two scalar conservation laws with distinct flux-functions. This problem arises, for instance, in modeling fluid flows in media with discontinuous porosity and has important possible applications in the numerical computation of a singular pressure drop. This problem is also well-known to exhibit several technical difficulties due to the presence of nonconservative terms and to the resonant behavior of the system of equations. We present here a global approach consisting of two scalar problems in a half-space coupled through an algebraic jump relation. We view this problem as a 2 × 2 system of conservation laws, and introduce a viscous regularization à la Dafermos. We establish that this approximation converges as the viscosity tends to zero and we analyze the structure of the entropy solutions constructed in this way.
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© 2008 Springer-Verlag Berlin Heidelberg
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Ambroso, A., Boutin, B., Coquel, F., Godlewski, E., LeFloch, P.G. (2008). Coupling Two Scalar Conservation Laws via Dafermos’ Self-Similar Regularization. In: Kunisch, K., Of, G., Steinbach, O. (eds) Numerical Mathematics and Advanced Applications. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-69777-0_24
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DOI: https://doi.org/10.1007/978-3-540-69777-0_24
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-69776-3
Online ISBN: 978-3-540-69777-0
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