An Analysis of Crystal Dissolution Fronts in Ows through Porous Media Part 1: Compatible Boundary Conditions

نویسندگان

  • P. Knabner
  • C. J. van Duijn
چکیده

We propose a model for transport of solutes in a porous medium participating in a dissolu-tion/precipitation reaction, in general not in equilibrium. For an unbounded spatial domain, travelling wave solutions exist, if and only if the charge distribution is constant and we deal with a dissolution situation. The travelling wave in fact exhibits a sharp dissolution front. The wave is given in a nearly explicit manner. Also for the limit cases of equilibrium reaction or no dispersion, travelling waves are established under the same conditions, but with diierent qualitative properties.

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تاریخ انتشار 1995