Two dimensional numerical modeling of oil spill fate in coastal waters using Telemac-2D

Document Type : Original Article

Authors

1 M.Sc. Graduate, Department of Civil Engineering, Faculty of Engineering, Shahid Bahonar University of Kerman, PO Box 76169-133, Kerman, Iran

2 Shahid Bahonar University of Kerman

3 Ph.D. Graduate, Department of Civil Engineering, Faculty of Engineering, Shahid Bahonar University of Kerman,

10.22125/iwe.2020.120735

Abstract

In this study, combined numerical Eulerian-Lagrangian method was used to simulate the movement of and assess the fate of oil spills. Momentum and continuity equations of two-dimensional horizontal flow and transport equations of oil pollution were obtained from Eulerian and Lagrangian methods and solved by a two-dimensional horizontal flow model, Telemac-2D. The finite element method was used for discretizing the governing equations.At the simulation stage of transport process, oil spill velocity which is depended on wind and current speed was computed from net transport model and then substituted into stochastic advection-diffusion model by Lagrangian approach. As a result, the location of the oil spill was provided at different times. It is necessary to point out that the effect of the waves was ignored based on the assumption that coastal currents were weak. At the simulation stage of weathering processes, Fay model was used to model spreading as the most important factor considering gravity and viscosity effects. Then, the surface area of the particles was calculated to solve the evaporation equation. Here, the final evaporation equation was described as a function of oil boiling point and its type. Comparison between results of the present study and Goeury et al. shows that Root Mean Square Error (RMSE) calculated for two-dimensional model in gasolineoil evaporation and dissolution problems are 0.414 and 2.97 respectively which is shown its reasonable accuracy.

Keywords

References

ASCE Task Committee on Modeling of Oil Spills, 1996. State-of-the-art review of modeling transport and fate of oil spills. Journal of Hydraulic Engineering, 122(11): 594-609.
Boethling, R.S. and Mackay, D., 2000. Handbook of Property Estimation Methods for Chemicals: Environmental Health Sciences. CRC press.
De Dominicis, M., Falchetti, S., Trotta, F., Pinardi, N., Giacomelli, L., Napolitano, E., Fazioli, L., Sorgente, R., Haley Jr, P.J., Lermusiaux, P.F. and Martins, F., 2014. A relocatable ocean model in support of environmental emergencies. Ocean Dynamics, 64(5): 667-688.
De Padova, D., Mossa, M., Adamo, M., De Carolis, G. and Pasquariello, G., 2017. Synergistic use of an oil drift model and remote sensing observations for oil spill monitoring. Environmental Science and Pollution Research, 24(6): 5530-5543
Fay, J.A. 1969, “The Spread of Oil Slick on a Calm Sea”, Hoult, D.P.(Ed), Oil on the Sea. Plenum Press, New York, NY: 53-63.
Goeury, C., Hervouet, J.M., Baudin-Bizien, I. and Thouvenel, F., 2014. A Lagrangian/Eulerian oil spill model for continental waters. Journal of hydraulic Research, 52(1): 36-48.
Lavine, W., Jamal, M.H., Abd Wahab, A.K. and Kasiman, E.H., 2019. Effect of sea level rise on oil spill model drift using TELEMAC-2D. Journal of Water and Climate Change.
Mackay, D. and Matsugu, R.S., 1973. Evaporation rates of liquid hydrocarbon spills on land and water. The Canadian Journal of Chemical Engineering, 51(4): 434-439.
Maslo, A., Panjan, J. and Žagar, D., 2014. Large-scale oil spill simulation using the lattice Boltzmann method, validation on the Lebanon oil spill case. Marine pollution bulletin, 84(1-2): 225-235.
Osamor, F.A. and Ahlert, R.C., 1978. Oil/water Separation: State-of-the-art (Vol. 1). Environmental Protection Agency, Office of Research and Development, Industrial Environmental Research Laboratory.
Simecek-Beatty, D., and Lehr, W. (2016) “Standard Handbook Oil Spill Environmental Forensics (Second Edition): 1015–1037.
Stiver, W. and Mackay, D., 1984. Evaporation rate of spills of hydrocarbons and petroleum mixtures. Environmental science & technology, 18(11): 834-840.
Tkalich, P. and Xiaobo, C., 2001, March. Accurate simulation of oil slicks. In International Oil Spill Conference (Vol. 2001, No. 2, pp. 1133-1137). American Petroleum Institute.
Whitman, W.G., 1923. The two-film theory of gas absorption. Chem. Metall. Eng., 29, pp.146-148.
Xu, J., Hao, Z., Wang, Y., Liu, J., Liu, G. and Zhang, Y., 2019, April. Modeling and numerical simulation of oil spill at different positions of blunt body. In 2019 3rd International Forum on Environment, Materials and Energy (IFEME 2019). Atlantis Press
Yu, F., Li, J., Cui, S., Zhao, Y., Feng, Q. and Chen, G., 2016. A hindcast method to simulate oil spill trajectories for the Bohai Sea, Northeast China. Ocean Engineering, 124: 363-370.
Zhang, B., Perrie, W., Li, X. and Pichel, W.G., 2011. Mapping sea surface oil slicks using RADARSAT‐2 quad‐polarization SAR image. Geophysical Research Letters, 38(10).
Irrigation and Water Engineering
Volume 11, Issue 2 - Serial Number 42
December 2020
Pages 251-265

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