Hydrodynamic aspects of end-gas autoignition

被引：10
作者：
Kagan, Leonid [1 ]
Sivashinsky, Gregory [1 ]
机构：
[1] Tel Aviv Univ, Sackler Fac Exact Sci, Sch Math Sci, IL-69978 Tel Aviv, Israel
来源：
PROCEEDINGS OF THE COMBUSTION INSTITUTE | 2013年 / 34卷
基金：
以色列科学基金会;
关键词：
End-gas autoignition; Knocking combustion; Confined burning; FLAME; PROPAGATION; IGNITION;
D O I：
10.1016/j.proci.2012.06.038
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Within the small-Mach-number approximation, employing an appropriate scale-separation procedure, a reduced zero-dimensional model for deflagrative combustion occurring in a closed vessel is formulated and analyzed. It is shown that progressive compression of the unburned gas (end-gas) induced by the burned gas thermal expansion may result in end-gas autoignition, provided the vessel is large enough. A theoretical interpretation is given to the effect of the flame velocity reversal occurring prior to the autoignition event. (C) 2012 The Combustion Institute. Published by Elsevier Inc. All rights reserved.
引用
收藏
页码：857 / 863
页数：7
相关论文
共 18 条
[1]  
BABKIN VS, 1967, COMBUST EXPLO SHOCK+, V3, P168
[2]   'Hot spots' and gasoline engine knock [J].
Bradley, D .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1996, 92 (16) :2959-2964
[3]   MATHEMATICAL SOLUTIONS FOR EXPLOSIONS IN SPHERICAL VESSELS [J].
BRADLEY, D ;
MITCHESON, A .
COMBUSTION AND FLAME, 1976, 26 (02) :201-217
[4]   MODELING END-GAS KNOCK IN A RAPID-COMPRESSION MACHINE [J].
BUSH, WB ;
FENDELL, FE ;
FINK, SF .
AIAA JOURNAL, 1985, 23 (08) :1223-1233
[5]  
Heywood, 1989, INTERNAL COMBUSTION
[6]   A minimal model for end-gas autoignition [J].
Kagan, Leonid S. ;
Gordon, Peter V. ;
Sivashinsky, Gregory I. .
COMBUSTION THEORY AND MODELLING, 2012, 16 (01) :1-12
[7]  
Lewis B., 1987, COMBUSTION FLAMES EX
[8]  
MACEK A, 1959, J CHEM PHYS, V31, P162
[9]  
Maly RR., 1994, P COMBUST INST, V25, P111
[10]   ON KNOCKING PREDICTION IN SPARK-IGNITION ENGINES [J].
MOSES, E ;
YARIN, AL ;
BARYOSEPH, P .
COMBUSTION AND FLAME, 1995, 101 (03) :239-261
12