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A Nonlinear Solute Transport Model and Data Reconstruction with Parameter Determination in an Undisturbed Soil-Column Experiment

Author

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  • Gongsheng Li
  • De Yao
  • Yongzai Wang
  • Xianzheng Jia

Abstract

A real undisturbed soil-column infiltrating experiment in Zibo, Shandong, China, is investigated, and a nonlinear transport model for a solute ion penetrating through the column is put forward by using nonlinear Freundlich's adsorption isotherm. Since Freundlich's exponent and adsorption coefficient and source/sink terms in the model cannot be measured directly, an inverse problem of determining these parameters is encountered based on additional breakthrough data. Furthermore, an optimal perturbation regularization algorithm is introduced to determine the unknown parameters simultaneously. Numerical simulations are carried out and then the inversion algorithm is applied to solve the real inverse problem and reconstruct the measured data successfully. The computational results show that the nonlinear advection-dispersion equation discussed in this paper can be utilized by hydrogeologists to research solute transport behaviors with nonlinear adsorption in porous medium.

Suggested Citation

  • Gongsheng Li & De Yao & Yongzai Wang & Xianzheng Jia, 2011. "A Nonlinear Solute Transport Model and Data Reconstruction with Parameter Determination in an Undisturbed Soil-Column Experiment," Mathematical Problems in Engineering, Hindawi, vol. 2011, pages 1-14, December.
    • Handle: RePEc:hin:jnlmpe:679531
    DOI: 10.1155/2011/679531
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