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Transient Experiments and Modeling of Soil Response to Extreme Heat

[+] Author Affiliations
Xianxu Hu, Mengwah Yong, André W. Marshall, Deborah J. Goodings

University of Maryland

Paper No. IMECE2006-16127, pp. 391-398; 8 pages
doi:10.1115/IMECE2006-16127
From:
  • ASME 2006 International Mechanical Engineering Congress and Exposition
  • Heat Transfer, Volume 2
  • Chicago, Illinois, USA, November 5 – 10, 2006
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 0-7918-4785-3 | eISBN: 0-7918-3790-4
  • Copyright © 2006 by ASME

abstract

This study investigates the transient response of saturated soil to extreme heat under severe tunnel fires by both experiments and CFD simulation. A basic soil-column configuration heated from below is chosen to examine the transport dynamics experimentally. The temperature rise, thermal transport, and pore pressure increases in saturated soils are measured in this fundamental configuration. A 2-D CFD simulation with a similar geometry sizes and boundary conditions is performed. The CFD simulations have shown correctly qualitative behavior observed in experiments, including the saturation front moving upward and the distinct regions developed in the soil medium.

Copyright © 2006 by ASME
Topics: Heat , Modeling , Soil

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