Numerical study of the effect of heat losses on self-propagating reactions in multilayer foils

Swaminathan Jayaraman, Adrian B. Mann, Michael Reiss, Timothy P. Weihs, Omar M. Knio*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

87 Scopus citations

Abstract

Current models of self-propagating reactions in multilayer foils have been successful in predicting the velocity and structure of reaction fronts, as well as their variation with individual layer thickness and premixing in the as-deposited state. Depending upon the parameter regime, the propagation of the reaction front has been shown to occur either in a steady manner or in an oscillatory manner. So far, however, existing models have ignored the effect of heat losses on the reaction. In this study, the effect of radiative and conductive heat losses on the propagation of reaction fronts in multilayers is investigated numerically. Heat losses are shown to decrease the flame speed and the magnitude of the oscillations, and to increase the period of the oscillations. In the parameter range considered, radiative heat losses have a much smaller effect on reaction propagation than conductive heat losses.

Original languageEnglish (US)
Pages (from-to)178-194
Number of pages17
JournalCombustion and Flame
Volume124
Issue number1-2
DOIs
StatePublished - Jan 2001
Externally publishedYes

Bibliographical note

Funding Information:
The authors would like to acknowledge financial support of 3M Corporation, NSF through Award DMR-9702546, ARL/Advanced Materials Characterization Program through Award No. 019620047, and NSF’s Materials Research in Science and Engineering Center on Nanostructured Materials at JHU. Computations have been performed at the National Center for Supercomputing Applications. 5 6 7 9 10

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology
  • General Physics and Astronomy

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