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Atomization and Sprays

Published 12 issues per year

ISSN Print: 1044-5110

ISSN Online: 1936-2684

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.2 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.8 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.3 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00095 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.28 SJR: 0.341 SNIP: 0.536 CiteScore™:: 1.9 H-Index: 57

Indexed in

TRANSPORT OF HIGH BOILING POINT FIRE SUPPRESSANTS IN A DROPLET-LADEN HOMOGENEOUS TURBULENT FLOW PAST A CYLINDER

Volume 16, Issue 6, 2006, pp. 627-656
DOI: 10.1615/AtomizSpr.v16.i6.30
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ABSTRACT

Liquid agent transport was investigated around unheated and heated horizontal cylinders (to a near-surface temperature of approximately 423 K, i.e., well above the water boiling point) under ambient conditions. Experimental results are presented for a well-characterized, droplet-laden homogenous turbulent flow field, using water, methoxy-nonafluorobutane (i.e., HFE-7100, C4F9OCH3, with a boiling point of 334 K), and 1-methoxyheptafluoropropane (i.e., HFE-7000, C3F7OCH3, with a boiling point of 307 K). Phase Doppler interferometry and visualization techniques were used to explore the thermal effects on spray surface impingement, vaporization, and transport around and downstream behind the cylinder by providing information on droplet size and velocity in the vicinity of the cylinder. For water, results indicated that impinging droplets larger than about 35 μm generally coat the unheated cylinder surface, with few droplets rebounding back into the free stream. Downstream, in the wake region of the cylinder, smaller size droplets (generally, of less than 35 μm) are entrained into the recirculation zone. Heat transfer reduces droplet mean size and velocity significantly in the vicinity of the heated cylinder. For the two HFE agents, liquid coating and dripping (observed for water) were eliminated due to vaporization. Droplet mean size increases and velocity decreases with increasing agent boiling point. These variations may also be explained by the changes in agent physical properties. It is improbable that shattering occurs for the droplet sizes and velocities encountered for the given operating conditions, although it could conceivably occur for a few individual impinging droplets.

CITED BY
  1. Presser Cary, Papadopoulos George, Widmann John F., PIV measurements of water mist transport in a homogeneous turbulent flow past an obstacle, Fire Safety Journal, 41, 8, 2006. Crossref

  2. Presser C., Yang J. C., Fire Suppression, in Handbook of Atomization and Sprays, 2011. Crossref

  3. Li Xiutao, Zhou Zhenyang, Zhang Mengjie, Zhang Feng, Zhou Xiaomeng, A liquid cooling technology based on fluorocarbons for lithium-ion battery thermal safety, Journal of Loss Prevention in the Process Industries, 78, 2022. Crossref

  4. An Sang Mo, Lee Sang Yong, Observation of the spreading and receding behavior of a shear-thinning liquid drop impacting on dry solid surfaces, Experimental Thermal and Fluid Science, 37, 2012. Crossref

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