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Title: A numerical model for the prediction of movement of gas condensate from spill accidents in the Assalouyeh marine region, Persian Gulf, Iran
Authors: Habibi, S
Torabi, Azad. M
Bidokhti, A.A
Keywords: Gas condensate
Concentration of particles
Assalouyeh marine region
Numerical model
Oil spill
Issue Date: Sep-2008
Publisher: CSIR
Abstract: This paper presents a three-dimensional numerical model of flow and movement of gas condensate spills based on Navier-Stokes and continuity equations with Boussinesq approximation involving various surface wind forcings. The model simulates the surface movement of gas condensate slick from spill accidents in Assalouyeh marine region. For the advection term an upwind weighted, multidimensional positive definite advection transport algorithm (MPDATA) was used. This algorithm uses an explicit finite difference scheme with an antidiffusive velocity for equilibrium diffusion. It also uses a generalized-conjugate-residual (GCR) method for the solution. The model is run for gas condensate spill accidents in Assalouyeh marine region in summer and winter of 2005. Numerical results show that gas condensate particles spread torwards the shore in summer, while in winter it mostly spreads towards east. The spreadings follow the flow fields that are in good agreement with flow field observations. Diffusion of gas condensate particles in the water due to more turbulence in winter is larger, while gas condensate particles are observed on the water surface due to more stability and buoyancy force in summer.
Description: 233-242
ISSN: 0379-5136
Appears in Collections:IJMS Vol.37(3) [September 2008]

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