1st International Petroleum and Natural Gas Congress and Exibition of Türkiye, Ankara, Türkiye, 27 - 29 Eylül 2023, ss.625-628
We have discussed the effect of surface tension regime on spreading of oil on the quiescent water in this study. We have treated the oil spreading diffusion alike by using advection-diffusion equation (ADE). We have derived a new form of diffusion coefficient including the surface tension regime after gravity viscous regime for oil spreading. An empirical parameter has been introduced into the diffusive length definition which can be used in the numerical solutions. An earlier numerical solution to the spreading of instantaneously released oil on the sea surface has been evaluated since it provides the slick’s progress in only gravity-viscous regime without surface tension regime. Nihoul’s analytical solution and its asymptotic expansions are compared with the numerical solution. In addition, we investigated the analytical solution by providing a wide range of spill volume, drag coefficient and surface tension values to understand their influences on the spreading. Implementation of the surface tension regime will help numerical solutions to describe oil spreading accurately.