Combustion of a high-velocity hydrogen microjet effluxing in air. / Kozlov, V. V.; Grek, G. R.; Korobeinichev, O. P. et al.
In: Doklady Physics, Vol. 61, No. 9, 01.09.2016, p. 457-462.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Combustion of a high-velocity hydrogen microjet effluxing in air
AU - Kozlov, V. V.
AU - Grek, G. R.
AU - Korobeinichev, O. P.
AU - Litvinenko, Yu A.
AU - Shmakov, A. G.
PY - 2016/9/1
Y1 - 2016/9/1
N2 - This study is devoted to experimental investigation of hydrogen-combustion modes and the structure of a diffusion flame formed at a high-velocity efflux of hydrogen in air through round apertures of various diameters. The efflux-velocity range of the hydrogen jet and the diameters of nozzle apertures at which the flame is divided in two zones with laminar and turbulent flow are found. The zone with the laminar flow is a stabilizer of combustion of the flame as a whole, and in the zone with the turbulent flow the intense mixing of fuel with an oxidizer takes place. Combustion in these two zones can occur independently from each other, but the steadiest mode is observed only at the existence of the flame in the laminar-flow zone. The knowledge obtained makes it possible to understand more deeply the features of modes of microjet combustion of hydrogen promising for various combustion devices.
AB - This study is devoted to experimental investigation of hydrogen-combustion modes and the structure of a diffusion flame formed at a high-velocity efflux of hydrogen in air through round apertures of various diameters. The efflux-velocity range of the hydrogen jet and the diameters of nozzle apertures at which the flame is divided in two zones with laminar and turbulent flow are found. The zone with the laminar flow is a stabilizer of combustion of the flame as a whole, and in the zone with the turbulent flow the intense mixing of fuel with an oxidizer takes place. Combustion in these two zones can occur independently from each other, but the steadiest mode is observed only at the existence of the flame in the laminar-flow zone. The knowledge obtained makes it possible to understand more deeply the features of modes of microjet combustion of hydrogen promising for various combustion devices.
UR - http://www.scopus.com/inward/record.url?scp=84989332748&partnerID=8YFLogxK
U2 - 10.1134/S1028335816090068
DO - 10.1134/S1028335816090068
M3 - Article
AN - SCOPUS:84989332748
VL - 61
SP - 457
EP - 462
JO - Doklady Physics
JF - Doklady Physics
SN - 1028-3358
IS - 9
ER -
ID: 25837192