Combustion of round hydrogen microjet in a cocurrent air flow

V. V. Kozlov, G. R. Grek, M. M. Katasonov, M. V. Litvinenko, Yu A. Litvinenko, A. S. Tambovtsev, A. G. Shmakov

Research output: Contribution to journalConference articlepeer-review

Abstract

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.

Original languageEnglish
Article number012056
Number of pages9
JournalJournal of Physics: Conference Series
Volume1382
Issue number1
DOIs
Publication statusPublished - 28 Nov 2019
Event3th Siberian Thermophysical Seminar, STS 2019 - Novosibirsk, Russian Federation
Duration: 27 Aug 201929 Aug 2019

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