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土壤中溶质运移的两区模型及准解析解 被引量:1

Two-Region Model of Solute Transport Through Soils and Its Quasi-Analytic Solution
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摘要 给出了非均质土壤中考虑水动力弥散尺度效应的一维溶质运移两区模型。在初始浓度为零、半无限一维空间内常数通量边界条件下 ,推导出了可动区溶质浓度分布 Cm( x,t)和不动区溶质浓度分布 Cim( x,t) In this paper the two region model of one dimensional solute transport through heterogeneous soils considering scale dependent dispersion is studied, and an quasi analytic solution describing the concentration distribution at the mobile region C m(x,t) and immobile region C im (x,t) is deduced under the initial concentration zero and a constant flux boundary condition of a semi infinite one dimensional space.
出处 《西安理工大学学报》 CAS 2002年第4期321-326,共6页 Journal of Xi'an University of Technology
基金 国家自然科学基金资助项目 (5 98790 2 2 )
关键词 土壤 溶质运移 两区模型 准解析解 LAPLACE变换 超几何函数 two region model quasi analytic solution laplace transform hypergeometric function
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