Comparison of results of 2 three-dimensional numerical models to predict the movement of oil slick from an accidental spill in the Singapore Strait

This paper presents a three- dimensional numerical model for prediction of the movement of oil slicks from a spill accident in the Strait of Singapore. The results of this model are compared with the results of the model which was run by Chao et al. This model has previously been developed for prediction of movement of gas condensates from spill accidents in the Assalouyeh marine Oil and Gas region and has achieved good results. The model is simulated based on the solution of the Navier-Stokes and the continuity equations. For the solution of advection term an upwind weighted multidimensional positive definite advection transport algorithm (MPDATA) used. This algorithm uses an explicit finite difference scheme with an anti-diffusive velocity for equilibrium diffusion. Comparison of the results of the two models showed good consistency that is considered for the introduced model as a reliable verification.