气候变化领域集成服务门户(CCPortal): Shedding from chemically-treated oil droplets rising in seawater

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DOI	10.1016/j.marpolbul.2019.04.012
	Shedding from chemically-treated oil droplets rising in seawater
	Davies E.J.; Dunnebier D.A.E.; Johansen Ø.; Masutani S.; Nagamine I.; Brandvik P.J.
发表日期	2019
ISSN	0025326X
起始页码	256
结束页码	263
卷号	143
英文摘要	The degree to which droplet shedding (tip-streaming) can modify the size of rising oil droplets has been a topic of growing interest in relation to subsea dispersant injection. We present an experimental and numerical approach predicting oil droplet shedding, covering a wide range of viscosities and interfacial tensions. Shedding was observed within a specific range of droplet sizes when the oil viscosity is sufficiently high and the IFT is sufficiently low. The affected droplets are observed to reduce in size, as smaller satellite droplets are shed, until the parent droplet reaches a stable size. Shedding of smaller droplets is related to the viscosity-dominated modified capillary number (Ca′), especially for low dispersant dosages recommended for subsea dispersant injection. This, in combination with the IFT-dominated Weber number (We), characterise droplets into three possible states: 1) stable (Ca′ < 0.21 & We<12); 2) tip-streaming (Ca′ > 0.21 & We<12); 3) unstable and subject to total breakup (We>12). © 2019 Elsevier Ltd
英文关键词	Dispersant; Experimental; Laboratory; Oil spill; Shedding; Tip-streaming
语种	英语
scopus关键词	Electric load shedding; Laboratories; Oil spills; Viscosity; Capillary numbers; Dispersants; Droplet sizes; Experimental; Numerical approaches; Oil viscosity; Satellite droplets; Weber numbers; Drop breakup; oil; sea water; petroleum; sea water; dispersant; droplet; experimental study; laboratory method; numerical model; oil spill; seawater; surface tension; viscosity; Article; dispersion; mathematical analysis; oil droplet shedding; physical phenomena; prediction; quantitative analysis; tension; viscosity; chemistry; oil spill; water pollutant; Petroleum; Petroleum Pollution; Seawater; Viscosity; Water Pollutants, Chemical
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/149888
作者单位	SINTEF Ocean, Environment Technology, Trondheim, Norway; Hawaii Natural Energy Institute, School of Ocean and Earth Science and Technology, University of Hawaii, Honolulu, HI, United States
推荐引用方式 GB/T 7714	Davies E.J.,Dunnebier D.A.E.,Johansen Ø.,et al. Shedding from chemically-treated oil droplets rising in seawater[J],2019,143.
APA	Davies E.J.,Dunnebier D.A.E.,Johansen Ø.,Masutani S.,Nagamine I.,&Brandvik P.J..(2019).Shedding from chemically-treated oil droplets rising in seawater.Marine Pollution Bulletin,143.
MLA	Davies E.J.,et al."Shedding from chemically-treated oil droplets rising in seawater".Marine Pollution Bulletin 143(2019).