Ahmed, P. orcid.org/0000-0002-8410-8590, Thorne, B.J.A. orcid.org/0000-0002-3329-7715 and Yang, J. orcid.org/0000-0003-4401-8061 (2024) Development of a multiple laser-sheet imaging technique for the analysis of three-dimensional turbulent explosion flame structures. Physics of Fluids, 36 (8). ISSN 1070-6631
Abstract
The present work describes the development of a multiple laser-sheet imaging technique for the study of turbulent, premixed flame surface structures at high Karlovitz stretch factor values. Experiments were conducted using CH4 air mixtures at 365 K and 0.5 MPa and up to a root mean square turbulence velocity of 1.5 m/s. A high-speed Nd:YAG laser capable of pulsing up to 60 kHz in conjunction with a high-speed camera and a rotating mirror was used to reconstruct time-resolved three-dimensional turbulent flames. This has, for the first time, enabled the direct measurement of wrinkled flame surface areas, along with reaction progress variable and flame brush thickness. These are important parameters for the characterization of turbulent burning rates and provide more insight into the dynamic nature of the flames and their structures. In addition, the current data aid toward direct comparison with results from combustion simulation studies.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2024 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Mechanical Engineering (Leeds) > Institute of Engineering Thermofluids, Surfaces & Interfaces (iETSI) (Leeds) |
Funding Information: | Funder Grant number EPSRC (Engineering and Physical Sciences Research Council) EP/W002299/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 07 Aug 2024 08:45 |
Last Modified: | 07 Aug 2024 08:45 |
Status: | Published |
Publisher: | AIP Publishing |
Identification Number: | 10.1063/5.0207937 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:215794 |