Accession Number : AD0711887

Title :   THE EFFECT OF THE ICE-SEPARATION CURVE ON THE THAWING OF GROUND,

Corporate Author : COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H

Personal Author(s) : Melamed,V. G.

Report Date : 1970

Pagination or Media Count : 7

Abstract : 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)

Descriptors :   (*ICE, PHASE STUDIES), (*SOILS, MELTING), INTERFACES, DIFFERENTIAL EQUATIONS, THERMAL CONDUCTIVITY, ALGORITHMS, TEMPERATURE, NUMERICAL INTEGRATION, USSR

Subject Categories : Soil Mechanics
      Snow, Ice and Permafrost

Distribution Statement : APPROVED FOR PUBLIC RELEASE