Journal
MARINE POLLUTION BULLETIN
Volume 114, Issue 1, Pages 247-257Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2016.09.008
Keywords
Oil droplet size; Subsurface blowout release; Subsurface dispersant injection; Volume median diameter; Oil entrainment
Funding
- Federal and State Natural Resource Agencies' (Trustees') Natural Resource Damage Assessment (NRDA) for the DWH oil spill through the National Oceanic and Atmospheric Administration Damage Assessment, Remediation and Restoration Program (NOAA) [AB133C-11-CQ-0050]
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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. (C) 2016 Elsevier Ltd. All rights reserved.
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