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

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)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1970
Accession Number
AD0711887

Entities

People

  • V. G. Melamed

Organizations

  • Cold Regions Research and Engineering Laboratory

Tags

DTIC Thesaurus Topics

  • Boundaries
  • Coefficients
  • Critical Temperature
  • Differential Equations
  • Energy
  • Equations
  • Equations Of State
  • Glass Transition Temperature
  • Heat Capacity
  • Heat Energy
  • Intensity
  • Mathematics
  • Phase Transformations
  • Transition Temperature
  • Transitions

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Combustion science or combustion engineering.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)

Technology Areas

  • Space
  • Space - Hall-Effect Thruster