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SUBSTANTIATION OF THE MATHEMATICAL MODELS FOR THE COMMON MIGRATION OF MOISTURE AND LIGHT OIL PRODUCTS INTO UNDER-SATURATED-SATURATED SOILS
The principal methodical grounds of the mathematical modeling of common migration for liquid aqueous solutions and light oil products such as kerosene, petrol, etc. into undersaturated-saturated soils at the subsurface layer are presented. More accurately the system of differential equations taking...
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| Format: | Article |
| Language: | rus |
| Published: |
Institute of Geological Sciences, NAS of Ukraine
2011
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| Subjects: | |
| Online Access: | http://geojournal.igs-nas.org.ua/article/view/139079 |
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| Summary: | The principal methodical grounds of the mathematical modeling of common migration for liquid aqueous solutions and light oil products such as kerosene, petrol, etc. into undersaturated-saturated soils at the subsurface layer are presented. More accurately the system of differential equations taking into account un-steady prevalent convective one- and two-dimensional movement (advection) for two immiscible liquids obeyed non-linear change law of volumetric moisture contents and mater transfer coefficients with the variation of intra-soil mass exchange sources are recommended. The effective iterative prediction formulae providing the stable solution of the initial system of the migration equations with the required accuracy are proposed. |
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