The Effect of Coagulation for Dispersion Modelling of Spilled Oil

J. Ocean Eng. Technol. 2000;14(2):44-52.

해상유출유의 분산모델링에 대한 응집효과

설동관

부경대학교 해양공학과

Keywords: Weathering, Dispersion, Coagulation

핵심용어: 풍화, 분산, 응집

Abstract

The dispersion of surface oil is generally described as a break-up of oil slick into small oil droplets. These small droplets are subjected to turbulence and vertical circulation so that it can be entrained into subsurface. Sometimes they tend to be submerged into sea bottom permanently. The diameter of oil droplets is a critical parameter to determine their behavioral characteristics under water surface. At the same time the variations of droplet stability depends on the weathering of it. That is why the weathered oil has different mechanism from the unweathered one. The variability of physical properties of oil including viscosity and density contribute to interfere with effective separation of oil and emulsion droplets in water. Also in the presence of interactions among the droplets there are coalescing or coagulating effects on the dispersion process of droplets.