13 research outputs found

    Godunov-type methods for conservation laws with a flux function discontinuous in space

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    Scalar conservation laws with a flux function discontinuous in space are approximated using a Godunov-type method for which a convergence theorem is proved. The case where the flux functions at the interface intersect is emphasized. A very simple formula is given for the interface flux. A numerical comparison between the Godunov numerical flux and the upstream mobility flux is presented for two-phase flow in porous media. A consequence of the convergence theorem is an existence theorem for the solution of the scalar conservation laws under consideration.Furthermore, for regular solutions, uniqueness has been shown

    Monotonization of flux, entropy and numerical schemes for conservation laws

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    Using the concept of monotonization, families of two step and k-step finite volume schemes for scalar hyperbolic conservation laws are constructed and analyzed. These families contain the FORCE scheme and give an alternative to the MUSTA scheme. These schemes can be extended to systems of conservation law

    Elements finis discontinus pour les lois de conservation

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    SIGLECNRS RS 14802 E / INIST-CNRS - Institut de l'Information Scientifique et TechniqueFRFranc

    Flux calculation at the interface between two rock types for two-phase flow in porous media

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    Programme 6 : calcul scientifique, modelisation et logiciels numeriquesSIGLEAvailable at INIST (FR), Document Supply Service, under shelf-number : 14802 E, issue : a.1993 n.2075 / INIST-CNRS - Institut de l'Information Scientifique et TechniqueFRFranc

    A discontinuous finite element method for scalar nonolinear conservation laws

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    Programme 6 : calcul scientifique, modelisation et logiciels numeriquesSIGLEAvailable at INIST (FR), Document Supply Service, under shelf-number : 14802 E, issue : a.1993 n.1848 / INIST-CNRS - Institut de l'Information Scientifique et TechniqueFRFranc

    Godunov-type methods for conservation laws with a flux function discontinuous in space

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    Theme 4 - Simulation et optimisation de systemes complexes - Projets EstimeSIGLEAvailable from INIST (FR), Document Supply Service, under shelf-number : 14802 E, issue : a.2001 / INIST-CNRS - Institut de l'Information Scientifique et TechniqueFRFranc

    Refinement and coarsening indicators for adaptive parameterization : application to the estimation of hydraulic transmissivities

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    Theme 4 - Simulation et optimisation de systemes complexes - Projets EstimeSIGLEAvailable from INIST (FR), Document Supply Service, under shelf-number : 14802 E, issue : a.2001 / INIST-CNRS - Institut de l'Information Scientifique et TechniqueFRFranc
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