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Groundwater pathway parameter sensitivity analysis in a semi-infinite homogeneous medium

By J. Tsai


[[abstract]]A parameter sensitivity analysis for a nuclide migration in a semi-infinite homogeneous medium, which approaches nearer to the actual situation than an infinite one, is achieved. A comparison is also given between the results of infinite and semi-infinite solutions. It is found that the differences of the sensitivity coefficients between an infinite and a semi-infinite solutions will increase with the time t. And, at the approximate peak time (tP=Z1Rd/V, where Z1 is the distance along the migration of nuclides corrected for the radioactive decay constants, Rd is the retardation factor, and V is the average pore water velocity), the absolute values of the differences of the parameters D, V, and Z1 between the two solutions increase with Pe, where D is the dispersion coefficient and Pe is the Peclet number. Finally, the sensitivity coefficients of Rd and K are found to increase linearly with K[[fileno]]2060101010035[[department]]工程與系統科學

Topics: sensitivity coefficients, nuclide migration, semi-infinite homogeneous medium, groundwater pathway parameter sensitivity, [[classification]]22
Year: 2010
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