This paper presents a one-dimensional steady-state model of heat and water vapor transport just beneath an ablating concrete surface. In the model an evaporation front separates a dry porous region through which water vapor flows to the ablation front from a semi-infinite region that is partially wet with evaporable water. The predicted water vapor pressures at the evaporation front are quite high and could conceivably cause the concrete to spall. The model is quantitatively compatible with spallation events observed during tests involving the pouring of molten steel onto concrete and is capable of explaining the disparate results obtained in two rather extensive test series on the penetration of induction heated metallic pools into concrete.
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A Model of Heat and Mass Transfer Beneath an Ablating Concrete Surface
Michael Epstein
Michael Epstein
Fauske & Associates, Inc., 16W070 West 83rd Street, Burr Ridge, IL 60527
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Michael Epstein
Fauske & Associates, Inc., 16W070 West 83rd Street, Burr Ridge, IL 60527
Contributed by the Heat Transfer Division for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received by the Heat Transfer Division November 22, 2002; revision received June 17, 2003. Associate Editor: J. N. Chung.
J. Heat Transfer. Apr 2004, 126(2): 290-294 (5 pages)
Published Online: May 4, 2004
Article history
Received:
November 22, 2002
Revised:
June 17, 2003
Online:
May 4, 2004
Citation
Epstein , M. (May 4, 2004). "A Model of Heat and Mass Transfer Beneath an Ablating Concrete Surface ." ASME. J. Heat Transfer. April 2004; 126(2): 290–294. https://doi.org/10.1115/1.1666884
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