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# A New Class of Entropy Solutions of the Buckley-Leverett Equation

@article{Duijn2007ANC, title={A New Class of Entropy Solutions of the Buckley-Leverett Equation}, author={C. J. van Duijn and L. A. Peletier and Iuliu Sorin Pop}, journal={SIAM J. Math. Analysis}, year={2007}, volume={39}, pages={507-536} }

- Published in SIAM J. Math. Analysis 2007
DOI:10.1137/05064518X

We discuss an extension of the Buckley–Leverett (BL) equation describing two-phase flow in porous media. This extension includes a third order mixed derivatives term and models the dynamic effects in the pressure difference between the two phases. We derive existence conditions for traveling wave solutions of the extended model. This leads to admissible shocks for the original BL equation, which violate the Oleinik entropy condition and are therefore called nonclassical. In this way we obtain… CONTINUE READING

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