Li Zhengkai, Spaulding Malcolm, French McCay Deborah, Crowley Deborah, Payne James R
RPS ASA, South Kingstown, RI 02879, USA.
Department of Ocean Engineering, University of Rhode Island, Narragansett, RI 02882, USA.
Mar Pollut Bull. 2017 Jan 15;114(1):247-257. doi: 10.1016/j.marpolbul.2016.09.008. Epub 2016 Sep 17.
An oil droplet size model was developed for a variety of turbulent conditions based on non-dimensional analysis of disruptive and restorative forces, which is applicable to oil droplet formation under both surface breaking-wave and subsurface-blowout conditions, with or without dispersant application. This new model was calibrated and successfully validated with droplet size data obtained from controlled laboratory studies of dispersant-treated and non-treated oil in subsea dispersant tank tests and field surveys, including the Deep Spill experimental release and the Deepwater Horizon blowout oil spill. This model is an advancement over prior models, as it explicitly addresses the effects of the dispersed phase viscosity, resulting from dispersant application and constrains the maximum stable droplet size based on Rayleigh-Taylor instability that is invoked for a release from a large aperture.
基于对破碎力和恢复力的无量纲分析，开发了一种适用于各种湍流条件的油滴尺寸模型，该模型适用于表面破碎波和水下井喷条件下的油滴形成，无论是否使用分散剂。通过从海底分散剂罐试验和现场调查中对经分散剂处理和未经处理的油进行控制实验室研究获得的油滴尺寸数据，对这个新模型进行了校准并成功验证，这些研究包括深海溢油实验释放和深水地平线井喷溢油事故。该模型是对先前模型的改进，因为它明确考虑了由于使用分散剂而导致的分散相粘度的影响，并基于大孔径释放时产生的瑞利 - 泰勒不稳定性限制了最大稳定油滴尺寸。
