Transient modes of propagation of the shock wave-reaction zone complex in methane-air mixtures

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...

Full description

Saved in:
Bibliographic Details
Published in:Russian journal of physical chemistry. B 2014-03, Vol.8 (2), p.158-164
Main Authors: Borisov, A. A., Koval’, A. S., Mailkov, A. E., Smetanyuk, V. A., Frolov, S. M.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Combustion
Explosion
Physical Chemistry
Shock Waves
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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 ∼14 tube diameters are produced.
ISSN:1990-7931
1990-7923
DOI:10.1134/S1990793114020043