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This article in SSSAJ

  1. Vol. 39 No. 6, p. 1029-1036
     
    Received: Apr 16, 1975
    Accepted: July 23, 1975


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doi:10.2136/sssaj1975.03615995003900060011x

Transport of Water and Heat in a Frozen Permeameter1

  1. R. D. Miller,
  2. J. P. G. Loch and
  3. E. Bresler2

Abstract

Abstract

Transport of water in frozen soils is probably not restricted to fluid phases. In a frozen permeameter a series-parallel mode of transport should exist in which the ice phase may move with uniform translational velocity in a stationary pore system formed by particles having adsorbed films of unfrozen water. A microscopic model for coupled mass and heat transport would be complex, but foundations for such a model are laid in an exercise which derives direct and cross coefficients for coupled transport equations applicable to a permeameter containing a simplified (nontortuous) “soil” with uniform cylindrical channels, ice-filled except for films adsorbed at channel walls. Temperature dependence of coefficients, assuming Newtonian shear in the film, can be modeled using standard double-layer theory. It is shown that the resultant coefficients are relatively insensitive to temperature (film thickness) but are highly dependent on thermal conductivities of components. Identity of cross-coefficients in this mechanical model is demonstrated. Expressions for computing phenomenological soil coefficients from coefficients measured in a practical permeameter are given, and a workable permeameter for such studies is postulated.

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