Applications of the Finite-Element Method to the Problem of Heat Transfer in a Freezing Shaft Wall,

Abstract

In this work numerical computations of heat transfer for freezing a shaft wall have been conducted. Both fixed mesh and deforming mesh finite-element methods are used. In the fixed mesh method, latent heat effects are accounted for through a delta function in the apparent heat capacity. In the deforming mesh method, an automatic mesh-generation technique with transfinite mappings is used, and in this method two different approaches are taken to evaluate the movement of the interface. The freeze-pipes are considered as point sources with irregular distribution. The advancement of the inner and outer boundaries of the frozen wall is found to be in agreement with the previously computed results. Keywords: soils; tunnels; cold regions; cold weather tests.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1986
Accession Number
ADA172552

Entities

People

  • Fu Liandi

Organizations

  • Cold Regions Research and Engineering Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Cold Regions
  • Computational Fluid Dynamics
  • Computational Science
  • Engineering
  • Engineers
  • Equations
  • Finite Element Analysis
  • Heat Capacity
  • Heat Energy
  • Heat Transfer
  • Isotherms
  • Latent Heat
  • Mathematical Models
  • New York
  • Temperature Gradients
  • Thermodynamics
  • Two Dimensional

Fields of Study

  • Engineering

Readers

  • Computational Fluid Dynamics (CFD)
  • Geotechnical Engineering.
  • Thermal Physics or Thermal Science.