Vertical mixing of oil droplets by breaking waves

被引：91

作者：

Tkalich, P ^{[1
]}

Chan, ES ^{[1
]}

机构：

[1] Natl Univ Singapore, Trop Marine Sci Inst, Singapore 117548, Singapore

来源：

MARINE POLLUTION BULLETIN | 2002年 / 44卷 / 11期

关键词：

oil spills; breaking waves; droplet kinetics; entrainment; mixing processes; dispersion;

D O I：

10.1016/S0025-326X(02)00178-9

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Oil spilled on a sea surface can be dispersed by a variety of natural processes, of which the influence of breaking waves is dominant. Breaking waves are able to split the slick into small droplets, facilitating oil mixing in the water column. Vertical dynamics of the droplets plays a major role in the oil mass exchange between the slick and the water column. In this paper a mathematical model of oil droplet mixing by breaking waves is developed. The model uses a kinetic approach to describe the vertical exchange of the droplets at the interface between the slick and the water column. The majority of the coefficients and parameters are conveniently combined into a single "mixing factor". The model is verified using sensitivity analysis and empirical formulae of other authors. The model permits a rapid estimation of the amount of dispersed oil under the breaking waves. The ultimate goal of the research is to parameterise influence of breaking waves on vertical mixing of oil droplets to be used in a general 3-D oil spill model. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：1219 / 1229

页数：11