Three Functions that Model Empirically Measured Unfrozen Water Content Data and Predict Relative Hydraulic Conductivity

Abstract

Empirically determined data on changes in unfrozen water content occurring as the result of changes in the state of ice and water in soil are discussed with reference to the changes in soil-water retention data for ice- free soil. The similarity between the two types of data is developed. The Brooks and Corey, van Genuchten and Gardner equations are then shown to be applicable to describing unfrozen water content data. These three functions are then used in the model of Mualem and the relative hydraulic conductivity of frozen soil is predicted. Keywords: Hydraulic models; Mathematical models; Statistical data.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1990
Accession Number
ADA223875

Entities

People

  • Patrick B. Black

Organizations

  • Cold Regions Research and Engineering Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Civil Engineering
  • Classification
  • Cold Regions
  • Conductivity
  • Engineering
  • Engineers
  • Equations
  • Heat Of Fusion
  • Hydraulic Models
  • Latent Heat
  • Mathematical Models
  • Physical Properties
  • Regions
  • Soil Science
  • Soils
  • Water
  • Water Resources

Readers

  • Agricultural Chemistry/Soil Science
  • Computational Modeling and Simulation
  • Hydraulic Engineering.