A cross-scale numerical modeling system for management support of oil spill accidents

•Development of a new Eulerian–Lagrangean 2D/3D oil spill model – VOILS.•VOILS model is based on unstructured horizontal grids.•Development of a new shoreline retention methodology (based on wetting/drying). A flexible 2D/3D oil spill modeling system addressing the distinct nature of the surface and...

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Bibliographic Details
Published in:Marine pollution bulletin Vol. 80; no. 1-2; pp. 132 - 147
Main Authors: Azevedo, Alberto, Oliveira, Anabela, Fortunato, André B., Zhang, Joseph, Baptista, António M.
Format: Journal Article
Language:English
Published: Kidlington Elsevier Ltd 15.03.2014
Elsevier
Subjects:
accidents
Animal and plant ecology
Animal, plant and microbial ecology
Applied ecology
Biological and medical sciences
Coastal pollution
coastal water
coasts
Ecotoxicology, biological effects of pollution
emulsifying
Environmental Monitoring - methods
Environmental Restoration and Remediation
Eulerian–Lagrangian methods
evaporation
Fundamental and applied biological sciences. Psychology
General aspects. Techniques
hydrodynamics
Marine and brackish environment
mathematical models
Methods and techniques (sampling, tagging, trapping, modelling...)
Models, Chemical
Oil spill modeling
oil spills
Oil weathering processes
oils
Petroleum - analysis
Petroleum Pollution - analysis
Petroleum Pollution - statistics & numerical data
Sea water ecosystems
shorelines
surface water
Synecology
Unstructured grids
Water Pollutants, Chemical - analysis
water pollution
weathering
Oil weathering processes
Unstructured grids
Oil spill modeling
Coastal pollution
Eulerian–Lagrangian methods
Oil spill
Marine environment
Pollution
Accident
Method
Modeling
Eulerian-Lagrangian methods
ISSN:0025-326X, 1879-3363, 1879-3363
Online Access:Get full text
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Summary:•Development of a new Eulerian–Lagrangean 2D/3D oil spill model – VOILS.•VOILS model is based on unstructured horizontal grids.•Development of a new shoreline retention methodology (based on wetting/drying). A flexible 2D/3D oil spill modeling system addressing the distinct nature of the surface and water column fluids, major oil weathering and improved retention/reposition processes in coastal zones is presented. The system integrates hydrodynamic, transport and oil weathering modules, which can be combined to offer different-complexity descriptions as required by applications across the river-to-ocean continuum. Features include accounting for different composition and reology in the surface and water column mixtures, as well as spreading, evaporation, water-in-oil emulsification, shoreline retention, dispersion and dissolution. The use of unstructured grids provides flexibility and efficiency in handling spills in complex geometries and across scales. The use of high-order Eulerian–Lagrangian methods allows for computational efficiency and for handling key processes in ways consistent with their distinct mathematical nature and time scales. The modeling system is tested through a suite of synthetic, laboratory and realistic-domain benchmarks, which demonstrate robust handling of key processes and of 2D/3D couplings. The application of the modeling system to a spill scenario at the entrance of a port in a coastal lagoon illustrates the power of the approach to represent spills that occur in coastal regions with complex boundaries and bathymetry.
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ISSN:0025-326X
1879-3363
1879-3363
DOI:10.1016/j.marpolbul.2014.01.028