Oil droplets transport due to irregular waves: Development of large-scale spreading coefficients

Marine Pollution Bulletin
Xiaolong GengLin Zhao

Abstract

The movement of oil droplets due to waves and buoyancy was investigated by assuming an irregular sea state following a JONSWAP spectrum and four buoyancy values. A technique known as Wheeler stretching was used to model the movement of particles under the moving water surface. In each simulation, 500 particles were released and were tracked for a real time of 4.0 h. A Monte Carlo approach was used to obtain ensemble properties. It was found that small eddy diffusivities that decrease rapidly with depth generated the largest horizontal spreading of the plume. It was also found that large eddy diffusivities that decrease slowly with depth generated the smallest horizontal spreading coefficient of the plume. The increase in buoyancy resulted in a decrease in the horizontal spreading coefficient, which suggests that two-dimensional (horizontal) models that predict the transport of surface oil could be overestimating the spreading of oil.

References

Mar 24, 2006·Marine Pollution Bulletin·Michel C BoufadelJames Weaver
Jul 30, 2014·Environmental Science & Technology·Michel C BoufadelJagadish Torlapati
Aug 20, 2014·Proceedings of the National Academy of Sciences of the United States of America·Andrew C PojeArthur J Mariano

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Citations

Jan 14, 2017·Scientific Reports·Xiaolong Geng, Michel C Boufadel
Mar 15, 2021·Marine Pollution Bulletin·Rafael Meza-PadillaChristian M Appendini

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