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Classification of the Group Invariant Solutions for Contaminant Transport in Saturated Soils under Radial Uniform Water Flows

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  • M. M. Potsane
  • R. J. Moitsheki

Abstract

The transport of chemicals through soils to the groundwater or precipitation at the soils surfaces leads to degradation of these resources. Serious consequences may be suffered in the long run. In this paper, we consider macroscopic deterministic models describing contaminant transport in saturated soils under uniform radial water flow backgrounds. The arising convection-dispersion equation given in terms of the stream functions is analyzed using classical Lie point symmetries. A number of exotic Lie point symmetries are admitted. Group invariant solutions are classified according to the elements of the one-dimensional optimal systems. We analyzed the group invariant solutions which satisfy the physical boundary conditions.

Suggested Citation

  • M. M. Potsane & R. J. Moitsheki, 2014. "Classification of the Group Invariant Solutions for Contaminant Transport in Saturated Soils under Radial Uniform Water Flows," Advances in Mathematical Physics, Hindawi, vol. 2014, pages 1-11, February.
    • Handle: RePEc:hin:jnlamp:138289
    DOI: 10.1155/2014/138289
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