Effect of a Passive Disturbance on the Flow Structure and Heat Transfer in the Separation Region Behind a Backward-Facing Step

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Effect of a Passive Disturbance on the Flow Structure and Heat Transfer in the Separation Region Behind a Backward-Facing Step. / Barsukov, A. V.; Terekhov, V. V.; Terekhov, V. I.

в: High Temperature, Том 59, № 1, 01.2021, стр. 115-120.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

BibTeX

@article{a693edf46a66417c868d06799529d82b,

title = "Effect of a Passive Disturbance on the Flow Structure and Heat Transfer in the Separation Region Behind a Backward-Facing Step",

abstract = "The article presents the results of a numerical study of a separated, turbulent flow and heat transfer in a channel with a sudden expansion under the effect of a passive disturbance generated by a rib-vortex generator. The rib height and its position upstream of the backward-facing step were varied over a wide range. The simulation results demonstrated that the vortex generator exerted a strong effect on the turbulent energy field and the friction factor. Under these conditions, the heat-transfer coefficient changes only slightly, which indicates that the heat transfer has a very low sensitivity to the disturbances generated by the rib. The causes of this behavior of dynamic and thermal characteristics are discussed. The presented comparison of the predictions with the experimental data confirms their qualitative agreement.",

author = "Barsukov, {A. V.} and Terekhov, {V. V.} and Terekhov, {V. I.}",

note = "Funding Information: The work was financially supported by the Russian Science Foundation, project no. 18-19-00161. Publisher Copyright: {\textcopyright} 2021, Pleiades Publishing, Ltd.",

year = "2021",

month = jan,

doi = "10.1134/S0018151X21010028",

language = "English",

volume = "59",

pages = "115--120",

journal = "High Temperature",

issn = "0018-151X",

publisher = "Maik Nauka-Interperiodica Publishing",

number = "1",

}

RIS

TY - JOUR

T1 - Effect of a Passive Disturbance on the Flow Structure and Heat Transfer in the Separation Region Behind a Backward-Facing Step

AU - Barsukov, A. V.

AU - Terekhov, V. V.

AU - Terekhov, V. I.

PY - 2021/1

Y1 - 2021/1

N2 - The article presents the results of a numerical study of a separated, turbulent flow and heat transfer in a channel with a sudden expansion under the effect of a passive disturbance generated by a rib-vortex generator. The rib height and its position upstream of the backward-facing step were varied over a wide range. The simulation results demonstrated that the vortex generator exerted a strong effect on the turbulent energy field and the friction factor. Under these conditions, the heat-transfer coefficient changes only slightly, which indicates that the heat transfer has a very low sensitivity to the disturbances generated by the rib. The causes of this behavior of dynamic and thermal characteristics are discussed. The presented comparison of the predictions with the experimental data confirms their qualitative agreement.

AB - The article presents the results of a numerical study of a separated, turbulent flow and heat transfer in a channel with a sudden expansion under the effect of a passive disturbance generated by a rib-vortex generator. The rib height and its position upstream of the backward-facing step were varied over a wide range. The simulation results demonstrated that the vortex generator exerted a strong effect on the turbulent energy field and the friction factor. Under these conditions, the heat-transfer coefficient changes only slightly, which indicates that the heat transfer has a very low sensitivity to the disturbances generated by the rib. The causes of this behavior of dynamic and thermal characteristics are discussed. The presented comparison of the predictions with the experimental data confirms their qualitative agreement.

UR - http://www.scopus.com/inward/record.url?scp=85123596381&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/97d19f4f-1c12-3db9-9c05-034bf81d92d2/

U2 - 10.1134/S0018151X21010028

DO - 10.1134/S0018151X21010028

M3 - Article

AN - SCOPUS:85123596381

VL - 59

SP - 115

EP - 120

JO - High Temperature

JF - High Temperature

SN - 0018-151X

IS - 1

ER -

ID: 35876815