Exact travelling wave solutions for a diffusion-convection equation in two and three spatial dimensions

  • S. A. Elwakil
  • , S. K. El-Labany
  • , M. A. Zahran
  • , R. Sabry

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The modified extended tanh-function method were applied to the general class of nonlinear diffusion-convection equations where the concentration-dependent diffusivity, D(u), was taken to be a constant while the concentration-dependent hydraulic conductivity, K(u) were taken to be in a power law. The obtained solutions include rational-type, triangular-type, singular-type, and solitary wave solutions. In fact, the profile of the obtained solitary wave solutions resemble the characteristics of a shock-wave like structure for an arbitrary m (where m > 1 is the power of the nonlinear convection term).

Original languageEnglish
Pages (from-to)113-116
Number of pages4
JournalComputer Physics Communications
Volume158
Issue number2
DOIs
StatePublished - 1 Apr 2004
Externally publishedYes

Keywords

  • Diffusion-convection processes
  • Modified extended tanh-function method
  • Symbolic computations
  • Travelling wave solutions

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