Combustion of round hydrogen microjet in a cocurrent air flow

Experimental data on combustion of a round hydrogen microjet in a cocurrent coaxial air jet are presented. As is found, the combustion of microjet is dominated by the generation of "bottleneck-flame region" that is in agreement with our previous observations on the diffusion combustion of...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. Conference series 2019-11, Vol.1382 (1), p.12056
Main Authors: Kozlov, V V, Grek, G R, Katasonov, M M, Litvinenko, M V, Litvinenko, Yu A, Tambovtsev, A S, Shmakov, A G
Format: Article
Language:English
Subjects:
Air flow
Air jets
Hydrogen
Microjets
Physics
Supersonic combustion
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Experimental data on combustion of a round hydrogen microjet in a cocurrent coaxial air jet are presented. As is found, the combustion of microjet is dominated by the generation of "bottleneck-flame region" that is in agreement with our previous observations on the diffusion combustion of subsonic hydrogen microjets. Transformation of the spherical "bottleneck-flame region" to a cylindrical one is observed. At supersonic combustion of the round hydrogen microjet, supersonic cells are generated both in the microjet and in the cocurrent coaxial air flow. A feature of the combustion process is the flame lift-off from the nozzle exit.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1382/1/012056