کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4634984 1631838 2007 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
One-dimensional equilibrium model and source parameter determination for soil-column experiment
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات کاربردی
پیش نمایش صفحه اول مقاله
One-dimensional equilibrium model and source parameter determination for soil-column experiment
چکیده انگلیسی

One-dimensional equilibrium soil-column experiment models with source (sink) reaction terms are discussed in this paper. In the case of occurring high-order chemical reactions, the zero production term in traditional models should be modified to a nonlinear term related with time (or space) and solute concentration, and then a mathematical model with nonlinear terms is put forward. Furthermore, an actual soil-column experiment in Zhangdian, Zibo is investigated. By applying an optimal perturbation algorithm, the source coefficient in the model is determined both in the cases of accurate data and inaccurate data. The inversion results show that for such inverse source coefficient problems with limited additional data, some optimal methods could be more efficient than regularization strategies, and for some real equilibrium soil-column experiments, the process of source (sink) reactions could be a key factor in the solute transportation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Mathematics and Computation - Volume 190, Issue 2, 15 July 2007, Pages 1365–1374
نویسندگان
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