Transient Modes of Propagation of the Shock Wave-Reaction Zone Complex in Methane-Air Mixtures

被引：4

作者：

Borisov, A. A. ^{[1
]}

Koval', A. S. ^{[1
]}

Mailkov, A. E. ^{[1
]}

Smetanyuk, V. A. ^{[1
]}

Frolov, S. M. ^{[1
,2
]}

机构：

[1] Russian Acad Sci, NN Semenov Chem Phys Inst, Ctr Pulse Detonat Combust, Moscow, Russia

[2] Natl Res Nucl Univ MEPhI, Moscow, Russia

来源：

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B | 2014年 / 8卷 / 02期

关键词：

methane-air mixtures; combustion; shock waves; TO-DETONATION TRANSITION; NATURAL-GAS; DEFLAGRATION; BURNER; FLOW;

D O I：

10.1134/S1990793114020043

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The dynamics of the combustion of stoichiometric methane-air mixtures during the passage from a larger-diameter to a smaller-diameter tube is experimentally studied. The combined effect of increases in the velocity and duration of the gas flow and in the degree of its turbulization due to a decrease in the cross sectional area of the tube and installation in it of turbulizing obstacles considerably enhance the probability of onset of combustion mode with the formation of strong shock waves. Combustion waves led by a shock wave that ignites the mixture at obstacles and propagates at a velocity of up to 1400 m/s within a distance of similar to 14 tube diameters are produced.

引用

页码：158 / 164

页数：7

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