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Effect of transverse jet position on flame propagation regime

Effect of transverse jet position on flame propagation regime
Effect of transverse jet position on flame propagation regime

We studied the mechanisms of flame acceleration (FA) and deflagration to detonation transition (DDT) triggered by a combination of solid and jet obstacles. The Navier-Stokes equations with a detailed hydrogen-air kinetics model were utilized. Vast Kelvin-Helmholtz instabilities generate intensive turbulence-flame interactions, leading to an increase in surface area and high propagation velocity. The jet position has a significant effect on the FA and DDT. A choking flame and detonation flame are obtained by the transverse jet with different positions and mixing times even though in a lower blockage ratio.

1070-6631
Zhao, Wandong
d9c8a7b9-8e16-4e9e-9c18-d5ee83d1d979
Liang, Jianhan
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Deiterding, Ralf
ce02244b-6651-47e3-8325-2c0a0c9c6314
Cai, Xiaodong
293bf621-f0e1-48ba-abaa-b41da81ea244
Wang, Xinxin
faafb881-5948-40d5-b2bb-df56f6687c32
Zhao, Wandong
d9c8a7b9-8e16-4e9e-9c18-d5ee83d1d979
Liang, Jianhan
fd8229b7-c7f4-4a1b-b94f-abce393f9e9a
Deiterding, Ralf
ce02244b-6651-47e3-8325-2c0a0c9c6314
Cai, Xiaodong
293bf621-f0e1-48ba-abaa-b41da81ea244
Wang, Xinxin
faafb881-5948-40d5-b2bb-df56f6687c32

Zhao, Wandong, Liang, Jianhan, Deiterding, Ralf, Cai, Xiaodong and Wang, Xinxin (2021) Effect of transverse jet position on flame propagation regime. Physics of Fluids, 33 (9), [091704]. (doi:10.1063/5.0063363).

Record type: Article

Abstract

We studied the mechanisms of flame acceleration (FA) and deflagration to detonation transition (DDT) triggered by a combination of solid and jet obstacles. The Navier-Stokes equations with a detailed hydrogen-air kinetics model were utilized. Vast Kelvin-Helmholtz instabilities generate intensive turbulence-flame interactions, leading to an increase in surface area and high propagation velocity. The jet position has a significant effect on the FA and DDT. A choking flame and detonation flame are obtained by the transverse jet with different positions and mixing times even though in a lower blockage ratio.

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POF21-LE-03197 - Accepted Manuscript
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More information

Accepted/In Press date: 5 September 2021
e-pub ahead of print date: 22 September 2021
Published date: September 2021

Identifiers

Local EPrints ID: 453628
URI: http://eprints.soton.ac.uk/id/eprint/453628
DOI: doi:10.1063/5.0063363
ISSN: 1070-6631
PURE UUID: ce1ae510-6324-4d5c-93cd-9db08b2b9b3d
ORCID for Ralf Deiterding: ORCID iD orcid.org/0000-0003-4776-8183

Catalogue record

Date deposited: 20 Jan 2022 17:39
Last modified: 17 Mar 2024 03:39

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Contributors

Author: Wandong Zhao
Author: Jianhan Liang
Author: Ralf Deiterding ORCID iD
Author: Xiaodong Cai
Author: Xinxin Wang

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