On metastable deflagration in porous medium combustion

被引：3
|
作者：
Bessonov, NM
Gordon, PV [1 ]
Sivashinsky, GI
Zinoviev, A
机构：
[1] Univ Chicago, Dept Math, Chicago, IL 60637 USA
[2] Russian Acad Sci, Inst Problems Mech Engn, St Petersburg 199178, Russia
[3] Tel Aviv Univ, Sackler Fac Exact Sci, Sch Math Sci, IL-69978 Tel Aviv, Israel
[4] Negev Acad Coll Engn, Dept Software Engn, IL-84100 Beer Sheva, Israel
来源：
APPLIED MATHEMATICS LETTERS | 2005年 / 18卷 / 08期
基金：
美国国家科学基金会; 以色列科学基金会;
关键词：
asymptotic analysis; combustion fronts; deflagration-to-detonation transition;
D O I：
10.1016/j.aml.2004.07.031
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
A regime of low velocity deflagration in hydraulically resisted flows such as those occurring in porous beds is discussed. An asymptotic expression for the deflagration velocity is derived. The obtained dependency elucidates the mechanism controlling the gradual enhancement of the propagation velocity prior to the abrupt transition from slow to fast combustion. This enhancement is caused by the drag-induced diffusion of pressure ahead of the advancing front. The time of transition from the slow to fast propagation is estimated. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：897 / 903
页数：7
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