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Influence of initial and boundary conditions at the nozzle exit upon diffusion combustion of a hydrogen microjet. / Shmakov, A. G.; Grek, G. R.; Kozlov, V. V. et al.

In: International Journal of Hydrogen Energy, Vol. 42, No. 24, 15.06.2017, p. 15913-15924.

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Shmakov AG, Grek GR, Kozlov VV, Litvinenko YA. Influence of initial and boundary conditions at the nozzle exit upon diffusion combustion of a hydrogen microjet. International Journal of Hydrogen Energy. 2017 Jun 15;42(24):15913-15924. doi: 10.1016/j.ijhydene.2017.05.091

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Shmakov, A. G. ; Grek, G. R. ; Kozlov, V. V. et al. / Influence of initial and boundary conditions at the nozzle exit upon diffusion combustion of a hydrogen microjet. In: International Journal of Hydrogen Energy. 2017 ; Vol. 42, No. 24. pp. 15913-15924.

BibTeX

@article{9cfa5cf4380942dfa915f15b8dbbdbcd,
title = "Influence of initial and boundary conditions at the nozzle exit upon diffusion combustion of a hydrogen microjet",
abstract = "The objective of this work is an experimental study of the influence of initial and boundary conditions at the nozzle exit upon diffusion combustion of a hydrogen microjet. It is found that the initial mean velocity profile and the presence (or absence) of a material with large heat capacity surrounding the nozzle exit may have a pronounced effect on the flame structure and combustion of the round hydrogen microjet. The rates of fuel consumption (i.e., the efflux velocities of hydrogen) providing diffusion combustion of the round hydrogen microjet, the flame detachment, and the origination of the «bottleneck flame» in the cases of a top-hat and a parabolic mean velocity profiles at the nozzle exit are determined. The variations of the extent of «bottleneck flame» with the hydrogen flow rate are made clear. Also we examine the diminution of the extent of «bottleneck flame» with the growth of hydrogen flow rate in three cases of initial conditions at the nozzle exit.",
keywords = "Diffusion combustion, Initial and boundary conditions, Mean velocity profile, Round hydrogen microjet, «Bottleneck flame» region, FLAMES, REDUCTION, ACOUSTIC EXCITATION, JET, << Bottleneck flame >> region, LAMINAR",
author = "Shmakov, {A. G.} and Grek, {G. R.} and Kozlov, {V. V.} and Litvinenko, {Yu A.}",
year = "2017",
month = jun,
day = "15",
doi = "10.1016/j.ijhydene.2017.05.091",
language = "English",
volume = "42",
pages = "15913--15924",
journal = "International Journal of Hydrogen Energy",
issn = "0360-3199",
publisher = "Elsevier Ltd",
number = "24",

}

RIS

TY - JOUR

T1 - Influence of initial and boundary conditions at the nozzle exit upon diffusion combustion of a hydrogen microjet

AU - Shmakov, A. G.

AU - Grek, G. R.

AU - Kozlov, V. V.

AU - Litvinenko, Yu A.

PY - 2017/6/15

Y1 - 2017/6/15

N2 - The objective of this work is an experimental study of the influence of initial and boundary conditions at the nozzle exit upon diffusion combustion of a hydrogen microjet. It is found that the initial mean velocity profile and the presence (or absence) of a material with large heat capacity surrounding the nozzle exit may have a pronounced effect on the flame structure and combustion of the round hydrogen microjet. The rates of fuel consumption (i.e., the efflux velocities of hydrogen) providing diffusion combustion of the round hydrogen microjet, the flame detachment, and the origination of the «bottleneck flame» in the cases of a top-hat and a parabolic mean velocity profiles at the nozzle exit are determined. The variations of the extent of «bottleneck flame» with the hydrogen flow rate are made clear. Also we examine the diminution of the extent of «bottleneck flame» with the growth of hydrogen flow rate in three cases of initial conditions at the nozzle exit.

AB - The objective of this work is an experimental study of the influence of initial and boundary conditions at the nozzle exit upon diffusion combustion of a hydrogen microjet. It is found that the initial mean velocity profile and the presence (or absence) of a material with large heat capacity surrounding the nozzle exit may have a pronounced effect on the flame structure and combustion of the round hydrogen microjet. The rates of fuel consumption (i.e., the efflux velocities of hydrogen) providing diffusion combustion of the round hydrogen microjet, the flame detachment, and the origination of the «bottleneck flame» in the cases of a top-hat and a parabolic mean velocity profiles at the nozzle exit are determined. The variations of the extent of «bottleneck flame» with the hydrogen flow rate are made clear. Also we examine the diminution of the extent of «bottleneck flame» with the growth of hydrogen flow rate in three cases of initial conditions at the nozzle exit.

KW - Diffusion combustion

KW - Initial and boundary conditions

KW - Mean velocity profile

KW - Round hydrogen microjet

KW - «Bottleneck flame» region

KW - FLAMES

KW - REDUCTION

KW - ACOUSTIC EXCITATION

KW - JET

KW - << Bottleneck flame >> region

KW - LAMINAR

UR - http://www.scopus.com/inward/record.url?scp=85020086154&partnerID=8YFLogxK

U2 - 10.1016/j.ijhydene.2017.05.091

DO - 10.1016/j.ijhydene.2017.05.091

M3 - Article

AN - SCOPUS:85020086154

VL - 42

SP - 15913

EP - 15924

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

SN - 0360-3199

IS - 24

ER -

ID: 10186438