Dynamic process of single water droplet impinging burning liquid pool existing on a water layer

This paper presents the mechanism of flame expansion during the process of a single water droplet impacting a thin diesel pool fire existing on a water layer. The mechanism of flame expansion is deeply analyzed. Splashing is the main factor causing flame expansion. For the quantitative analysis, it...

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Main Authors: Xu, Mingjun, Zeng, Yiping, Wang, Changjian
Other Authors: School of Mechanical and Aerospace Engineering
Format: Article
Language:English
Published: 2024
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Online Access:https://hdl.handle.net/10356/179394
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1793942024-07-29T08:12:56Z Dynamic process of single water droplet impinging burning liquid pool existing on a water layer Xu, Mingjun Zeng, Yiping Wang, Changjian School of Mechanical and Aerospace Engineering Engineering Droplet diameters Water layers This paper presents the mechanism of flame expansion during the process of a single water droplet impacting a thin diesel pool fire existing on a water layer. The mechanism of flame expansion is deeply analyzed. Splashing is the main factor causing flame expansion. For the quantitative analysis, it is found that the water droplet’s diameter and falling height have significant effects on the intensity of flame expansion, and the quantitative relationships among the dimensionless intensity of flame expansion, water droplet diameter, and falling height are provided in this study. A comprehensive formula, i.e., (Hmax - Ho)/Dpool = 0.00294We - 0.57, in the combination of the dimensionless intensity of flame expansion i.e., (Hmax - Ho)/Dpool, droplet diameter d and falling height h, is provided to predict the intensity of flame expansion, which is of great importance to quantify the intensity of flame expansion. Additionally, the instantaneous flame area is calculated to quantify the intensity of flame expansion. The expansion intensity of the flame area (Am - A0)/A0 increases with the droplet diameter d and falling height h. The authors would like to acknowledge the financial support sponsored by Shanghai Sailing Program (No. 21YF1408700) and Anhui Provincial Natural Science Foundation (No. 2208085QE160). 2024-07-29T08:12:56Z 2024-07-29T08:12:56Z 2024 Journal Article Xu, M., Zeng, Y. & Wang, C. (2024). Dynamic process of single water droplet impinging burning liquid pool existing on a water layer. Industrial & Engineering Chemistry Research, 63(18), 8464-8472. https://dx.doi.org/10.1021/acs.iecr.4c00731 0888-5885 https://hdl.handle.net/10356/179394 10.1021/acs.iecr.4c00731 2-s2.0-85191768586 18 63 8464 8472 en Industrial & Engineering Chemistry Research © 2024 American Chemical Society. All rights reserved.
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering
Droplet diameters
Water layers
spellingShingle Engineering
Droplet diameters
Water layers
Xu, Mingjun
Zeng, Yiping
Wang, Changjian
Dynamic process of single water droplet impinging burning liquid pool existing on a water layer
description This paper presents the mechanism of flame expansion during the process of a single water droplet impacting a thin diesel pool fire existing on a water layer. The mechanism of flame expansion is deeply analyzed. Splashing is the main factor causing flame expansion. For the quantitative analysis, it is found that the water droplet’s diameter and falling height have significant effects on the intensity of flame expansion, and the quantitative relationships among the dimensionless intensity of flame expansion, water droplet diameter, and falling height are provided in this study. A comprehensive formula, i.e., (Hmax - Ho)/Dpool = 0.00294We - 0.57, in the combination of the dimensionless intensity of flame expansion i.e., (Hmax - Ho)/Dpool, droplet diameter d and falling height h, is provided to predict the intensity of flame expansion, which is of great importance to quantify the intensity of flame expansion. Additionally, the instantaneous flame area is calculated to quantify the intensity of flame expansion. The expansion intensity of the flame area (Am - A0)/A0 increases with the droplet diameter d and falling height h.
author2 School of Mechanical and Aerospace Engineering
author_facet School of Mechanical and Aerospace Engineering
Xu, Mingjun
Zeng, Yiping
Wang, Changjian
format Article
author Xu, Mingjun
Zeng, Yiping
Wang, Changjian
author_sort Xu, Mingjun
title Dynamic process of single water droplet impinging burning liquid pool existing on a water layer
title_short Dynamic process of single water droplet impinging burning liquid pool existing on a water layer
title_full Dynamic process of single water droplet impinging burning liquid pool existing on a water layer
title_fullStr Dynamic process of single water droplet impinging burning liquid pool existing on a water layer
title_full_unstemmed Dynamic process of single water droplet impinging burning liquid pool existing on a water layer
title_sort dynamic process of single water droplet impinging burning liquid pool existing on a water layer
publishDate 2024
url https://hdl.handle.net/10356/179394
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