文章基本信息

标题：Two-dimensional advection-dispersion equation with depthdependent variable source concentration
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作者：Chatterjee, A ; Chatterjee, A ; Singh, M.K. 等
期刊名称：Pollution
印刷版ISSN：2383-451X
电子版ISSN：2383-4501
出版年度：2018
卷号：4
期号：1
页码：1-8
DOI：10.22059/poll.2017.230145.265
语种：English
出版社：University of Tehran
摘要：The present work solves two-dimensional Advection-Dispersion Equation (ADE) in a semi-infinite domain. A variable source concentration is regarded as the monotonic decreasing function at the source boundary (x=0). Depth-dependent variables are considered to incorporate real life situations in this modeling study, with zero flux condition assumed to occur at the exit boundary of the domain, i.e. its semi-infinite part. Without losing any generality, one can consider that the aquifer is initially contaminationfree. Thus, the current study explores variations of two-dimensional contaminant concentration with depth throughout the domain, showing them graphically. Non-point source problem, i.e. the line source problem, can be discussed by solving twodimensional depth-dependent variable source problem, as x=0 is a 2D line. A new transformation has been used to transform the time-dependent ADE to one with constant coefficients, with Matlab (pdetool) being employed in order to solve the problem, numerically, using finite element method.
关键词：Solute transport; Aquifer; Line source; Numerical solution