| 水下溢油油滴粒径分布实验研究 |
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| 引用本文： | 李建伟,安伟,高会旺,赵宇鹏,孙永根.水下溢油油滴粒径分布实验研究[J].海洋学报(英文版),2018,37(11):88-95. |
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| 作者姓名： | 李建伟 安伟 高会旺 赵宇鹏 孙永根 |
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| 作者单位： | 中国海洋大学, 海洋环境与生态教育部重点实验室, 山东 青岛, 266100;中海石油环保服务(天津)有限公司, 天津 塘沽, 300452,中海石油环保服务(天津)有限公司, 天津 塘沽, 300452,中国海洋大学, 海洋环境与生态教育部重点实验室, 山东 青岛, 266100,中海石油环保服务(天津)有限公司, 天津 塘沽, 300452,国家海洋局第一海洋研究所, 山东 青岛, 266061 |
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| 摘 要： | Oil droplet size distribution(ODSD) plays a critical role in the rising velocity and transport of oil droplets in subsurface oil releases. In this paper, subsurface oil release experiments were conducted to study ODSD under different experimental conditions in a laboratory water tank observed by two high-speed cameras in March and April 2017. The correlation formulas Oh=10.2 Re~(–1) and Oh=39.2 Re~(–1)(Re represents Reynolds number and Oh represents Ohnesorge number) were established to distinguish the boundaries of the three instability regimes in dimensionless space based on the experimental results. The oil droplet sizes from the experimental data showed an excellent match to the Rosin–Rammler distribution function with determination coefficients ranging from 0.86 to 1.00 for Lvda 10-1 oil. This paper also explored the influence factors on and change rules of oil droplet size. The volume median diameter d50 decreased steadily with increasing jet velocity, and a sharp decrease occurred in the laminar-breakup regime. At Weber numbers(We) 100, the orifice diameter and oil viscosity appeared to have a large influence on the mean droplet diameter. At 100We1 000, the oil viscosity appeared to have a larger influence on the relative mean droplet diameter.
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| 关 键 词： | 油滴粒径分布 水下溢油 罗辛-拉姆勒分布 |
| 收稿时间： | 2018/5/7 0:00:00 |
An experimental study on oil droplet size distribution in subsurface oil releases |
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| LI Jianwei,AN Wei,GAO Huiwang,ZHAO Yupeng and SUN Yonggen.An experimental study on oil droplet size distribution in subsurface oil releases[J].Acta Oceanologica Sinica,2018,37(11):88-95. |
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| Authors: | LI Jianwei AN Wei GAO Huiwang ZHAO Yupeng and SUN Yonggen |
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| Institution: | 1.Key Laboratory of Marine Environment and Ecology, Ministry of Education of China, Ocean University of China, Qingdao 266100, China;China Offshore Environmental Services Ltd., Tianjin 300452, China2.China Offshore Environmental Services Ltd., Tianjin 300452, China3.Key Laboratory of Marine Environment and Ecology, Ministry of Education of China, Ocean University of China, Qingdao 266100, China4.The First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China |
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| Abstract: | Oil droplet size distribution (ODSD) plays a critical role in the rising velocity and transport of oil droplets in subsurface oil releases. In this paper, subsurface oil release experiments were conducted to study ODSD under different experimental conditions in a laboratory water tank observed by two high-speed cameras in March and April 2017. The correlation formulas Oh=10.2Re–1 and Oh=39.2Re–1 (Re represents Reynolds number and Oh represents Ohnesorge number) were established to distinguish the boundaries of the three instability regimes in dimensionless space based on the experimental results. The oil droplet sizes from the experimental data showed an excellent match to the Rosin–Rammler distribution function with determination coefficients ranging from 0.86 to 1.00 for Lvda 10-1 oil. This paper also explored the influence factors on and change rules of oil droplet size. The volume median diameter d50 decreased steadily with increasing jet velocity, and a sharp decrease occurred in the laminar-breakup regime. At Weber numbers (We) <100, the orifice diameter and oil viscosity appeared to have a large influence on the mean droplet diameter. At 100<We<1 000, the oil viscosity appeared to have a larger influence on the relative mean droplet diameter. |
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| Keywords: | oil droplet size distribution subsurface oil releases Rosin-Rammler distribution |
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