Modeling oil droplet formation and evolution under breaking waves

Z. Chen, C. S. Zhan, K. Lee, Z. K. Li, M. Boufadel

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

A research program was initiated to develop numerical models to describe oil droplet formation and behavior following oil spills at sea. Specifically, suitable models have been examined to quantify the energy requirement for the formation of oil droplets and their subsequent mixing and resurfacing. Wave energy dissipation rate is a critical parameter governing the evolution of spilled oil including its droplet size distribution, breakup, coalesce, and dispersion. Methods of computing the energy dissipation rate were researched, and one was selected for a detailed study of oil droplet kinetics. Additionally, a population model was developed to account for the evolution of oil droplets under typical wave energy levels. Preliminary validation of the proposed models, using a full-scale computer-controlled wave tank facility at the Centre for Offshore Oil and Gas Environmental Research (COOGER), showed good agreement between experimental data and predictions for mean oil droplet diameter under breaking wave conditions for time intervals of 1, 10, 60, and 300 min after the spill. A similar correlation was observed for oil concentration in the aqueous phase. Comparisons were also made to evaluate the influence of energy on oil droplet behavior in the presence of chemical dispersants. The study results will be used to formulate a standard procedure for developing new oil spill countermeasures.

Original languageEnglish (US)
Pages (from-to)438-448
Number of pages11
JournalEnergy Sources, Part A: Recovery, Utilization and Environmental Effects
Volume31
Issue number5
DOIs
StatePublished - Mar 10 2009
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Fuel Technology
  • Nuclear Energy and Engineering
  • Renewable Energy, Sustainability and the Environment

Keywords

  • Breaking waves
  • Dispersion
  • Droplet size
  • Kinetics
  • Oil droplet
  • Spills
  • Wave tank

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