Mathematical Modeling and Numerical Algorithms for Simulation of Oil Pollution |
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Authors: | Quang A. Dang Matthias Ehrhardt Gia Lich Tran Duc Le |
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Affiliation: | 1.Institute of Information Technology,Ha noi,Vietnam;2.Lehrstuhl für Angewandte Mathematik und Numerische Analysis, Fachbereich C Mathematik und Naturwissenschaften,Bergische Universit?t Wuppertal,Wuppertal,Germany;3.Institute of Mathematics,Ha noi,Vietnam;4.Buro of Hydrology and Meteorology,Dang Thai Than,Ha noi,Vietnam |
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Abstract: | This paper deals with the mathematical modeling and algorithms for the problem of oil pollution. For solving this task, we derive the adjoint problem for the advection–diffusion equation describing the propagation of oil slick after an accident, which we call the main problem. We prove a fundamental equality between the solutions of the main and the adjoint problems. Based on this equality, we propose a novel method for the identification of the pollution source location and the accident time of oil emission. This approach is illustrated on an example for an accident in the offshore of the central part of the Vietnamese coast. Numerical simulations demonstrate the effectiveness of the proposed method. Besides, the method is verified for 1D model of substance propagation. |
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