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Deep penetration of permafrost through saturated ground
AbstractThe expansion of a permafrost region into an aquifer due to surface cooling is investigated for purely vertical motion. Both permafrost and aquifer are treated as binary mixtures, separated by a moving interface. Simplifying approximations lead to reduced parabolic equations for the temperature fields in the permafrost and aquifer, coupled by jump conditions at their distinct interface. A transformation is introduced which changes the unknown expanding permafrost region into a fixed domain for numerical purposes. Illustrations are presented for linear and exponential surface cooling.
Deep penetration of permafrost through saturated ground
AbstractThe expansion of a permafrost region into an aquifer due to surface cooling is investigated for purely vertical motion. Both permafrost and aquifer are treated as binary mixtures, separated by a moving interface. Simplifying approximations lead to reduced parabolic equations for the temperature fields in the permafrost and aquifer, coupled by jump conditions at their distinct interface. A transformation is introduced which changes the unknown expanding permafrost region into a fixed domain for numerical purposes. Illustrations are presented for linear and exponential surface cooling.
Deep penetration of permafrost through saturated ground
Kelly, R.J. (author) / Morland, L.W. (author) / Boulton, G.S. (author)
Cold Regions, Science and Technology ; 18 ; 9-27
1989-10-03
19 pages
Article (Journal)
Electronic Resource
English
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