THE EFFECT OF THE ICE-SEPARATION CURVE ON THE THAWING OF GROUND

• Main Author: Melamed,V. G.
• Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H
• Format: Text
• Language: English
• Published: 1970
• Subjects: Soil Mechanics; Snow; Ice and Permafrost; (*ICE; PHASE STUDIES); (*SOILS; MELTING); INTERFACES; DIFFERENTIAL EQUATIONS; THERMAL CONDUCTIVITY; ALGORITHMS; TEMPERATURE; NUMERICAL INTEGRATION; USSR; RUNGE-KUTTA METHOD; TRANSLATIONS; Ice; permafrost
• Online Access: http://www.dtic.mil/docs/citations/AD0711887; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0711887

In a solution of the problem concerning the thawing (melting) in finely-dispersed media, of considerable significance, in addition to the phase transformations of the free moisture, occurring momentarily at the mobile boundary of the phases' interface, is the consideration of the phase transitions of the bound water, occurring in the spectrum of the temperatures. However, the solution of the Stefan problem in this context becomes abruptly complicated, since within each zone, the differential equations become nonlinear (the coefficients of heat conduction and heat capacity depend on the temperature). In addition, it is necessary to take into account the continually distributed (through the space of the frozen ground) internal sources of heat, the intensity of which depends on the unknown function. (Author) Trans. of Merzlotnye Issledovaniya (USSR) n7 p44-49 1967.