A comparison of two finite element models for the prediction of permafrost temperatures

Details

• Creators:
  Gosink, J.P. ; Osterkamp, T.E. ; Kawasaki, K.
• Subject/TRT Terms:
  • Permafrost
  • Freezing
  • Soils
  • Thermal properties
  • Hydraulic properties
  • Thermal analysis
  • Highways
  • Airstrips
  • Computer models
  • Finite element simulations
  More +
• Resource Type:
  Research Paper
• Geographical Coverage:
  United States
• Corporate Publisher:
  Alaska. Department of Transportation and Public Facilities
• Description:
  In permafrost areas, the analysis of soil thermal and hydraulic regimes is complicated by phase change effects and by moisture migration. During freezing, mobile soil moisture is drawn toward the freezing front, increasing the available latent heat; therefore, it is critical particularly in unsaturated soils, that moisture transport and soil water phase change be correctly simulated by computer modeling. The moisture transport is affected by soil moisture tension and hydraulic conductivity, as well as by soil thermal regime, implying that moisture transport and soil temperatures are strongly coupled. (127 p., 56 fig.)
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/14680/dot_14680_DS1.pdf
• File Type:
  [PDF - 5.39 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:4f4148b833e1e42bcb98b919a010f2853cf0f4eddd595a9643627b87cd66e05c