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 language | English |
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Article number | 012056 |
Number of pages | 9 |
Journal | Journal of Physics: Conference Series |
Volume | 1382 |
Issue number | 1 |
DOIs | |
Publication status | Published - 28 Nov 2019 |
Event | 3th Siberian Thermophysical Seminar, STS 2019 - Novosibirsk, Russian Federation Duration: 27 Aug 2019 → 29 Aug 2019 |