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Exact Solution for the Rate of Creeping Flame Spread over Thermally Thin Materials

 

作者: M. A. DELICHATSIOS,  

 

期刊: Combustion Science and Technology  (Taylor Available online 1986)
卷期: Volume 44, issue 5-6  

页码: 257-267

 

ISSN:0010-2202

 

年代: 1986

 

DOI:10.1080/00102208608960307

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

In this work we present the exact solution for the rate of creeping flame spread over thermally thin materials based on de Ris' (1969) formulation of the problem. The publication of the present work was prompted by a recent paper by Wichman and Williams (1984). These authors noted that de Ris (1969) obtained theoretical values for flame spread rates which are by a factor of two larger than recent experimental data (Fernandez-Pello et at., 1981). Wichman and Williams (1984) correctly suggested that this discrepancy between the theory and the experiment may have resulted from an approximation by de Ris(1969) of an irrational kernel by a rational function. The substitute kernel used by de Ris (1969) allowed him to obtain an analytical solution of the flame spread rates; however, this approximation may have introduced errors in the calculation of proportionality constants. The exact solution for creeping flame spread rates, which we present in the final analysis, agrees with the experimental data.

 

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