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《Journal of Hohai University(Natural Sciences)》 2018-06
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Analytic solution for 1D convection-dispersion equation with time-variable boundary and its application in soil column experiment

CHENG Qinbo;CHEN Xi;ZHANG Zhicai;ZHANG Runrun;HUANG Richao;CAI Lianbin;State Key Laboratory of Hydrology Water Resources and Hydraulic Engineering,Hohai University;College of Hydrology and Water Resources,Hohai University;  
This study derived an analytical solution of 1 D convection-dispersion-linear dissipation equation with variable boundary using the Green's function method,then compared the analytical solution with the numerical solution,and after that applied it to the heat conduction and solute transport experiments of a soil column. Results showed that the contributions of initial,upper and lower boundary conditions were independent. At the same time,analytical results matched the numerical simulation and the observed results of experiments well. As a conclusion,the analytical solution can represent the heat conduction and solute the transport processes well.
【Fund】: 江苏省自然科学基金(BK20150809);; 国家自然科学基金青年科学基金(41601013);国家自然科学基金重大项目(41571130071)
【CateGory Index】: TU41
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