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B. V. Arkhipov V. N. Koterov V. V. Solbakov D. A. Shapochkin Yu. S. Yurezanskaya 《Russian Meteorology and Hydrology》2007,32(6):377-387
We consider features of the application of a discrete particle statistical method to solve the transport and diffusion equation in the case of the time-dependent (contaminant transport by turbulent flow) or nonlinear (thin slick spreading on the water surface) diffusion rate. For the problem of contaminant dispersion by turbulent flow, an algorithm is developed for discrete particle technique application in the case of the diffusion rate change governed by “4/3 law,” and a good agreement of numerical and analytical results is demonstrated. For the problem of oil slick spreading, as described by the quasi-linear transport-diffusion equation, an algorithm of the particle random walk is developed, in which the walk step dispersion depends on the unknown function. The solution using a discrete particle technique for both volley and continuous discharge is in good agreement with analytical and/or numerical solutions using the grid method (the latter is practically equivalent to the analytical solution due to small time and space steps for a one-dimensional axisymmetric case). 相似文献
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Zatsepa S. N. Ivchenko A. A. Korotenko K. A. Solbakov V. V. Stanovoy V. V. 《Oceanology》2018,58(6):769-777
Oceanology - The paper proposes a new parameterization of natural dispersion of a marine oil spill due to wind-wave breakup of the oil slick and penetration of oil droplets into the water. The... 相似文献
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Arkhipov B. V. Koterov V. N. Kochetova A. S. Solbakov V. V. Khublaryan G. M. 《Water Resources》2003,30(6):653-658
A technique for numerical modeling of hydrodynamic fields at a hydraulic structure on the shelf of a marginal or closed sea is described. Examples of calculations for a specific facility in the shelf zone of the Northern Caspian Sea are given. 相似文献
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