The Ichthyofauna of the Upper Terek and Its Basin

Абдусамадов, А. С.; Абдурахманов, Г. М.; Dokhtukaeva, A. M.; Дудурханова, Л. А.

doi:10.18470/1992-1098-2011-3-49-65

Cited by 2 publications

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“…The coefficient of horizontal turbulent diffusion depends on the hydrodynamic and climatic conditions in which the process takes place. The coefficient of horizontal turbulent diffusion will be subject to the law of the «four thirds» by Richardson for difficult hydrodynamic and climatic conditions of the AzovBlack Sea area [10]:…”

Section: Mathematical Model Of Oil Products Transportmentioning

confidence: 99%

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Complex of parallel programs for modeling oil products transport in coastal systems

Semenyakina

Проценко

2017

MATEC Web Conf.

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Abstract. This paper covers the model of oil products transport in view the evaporation of light, neutral and no-evaporating pseudofractions of oil slick, dissolution of oil slick and biodegradation. Approximation of diffusion-convection problem was performed on the basis of schemes of high-order of accuracy. Experimental software was designed for mathematical modelling of possible scenarios of development of ecosystems of shallow waters for oil spills on the example of the Azov-Black Sea basin, based on multiprocessor computer systems. Decomposition methods of grid domains have been used for computationally laborious diffusion-convection tasks in parallel implementation. Maximum acceleration was equal to 228.36 times on 512 computational nodes.

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Section: Mathematical Model Of Oil Products Transportmentioning

confidence: 99%

“…Results of natural experiments for researching the destruction of crude oil in seawater are given in [10]. The experimental results are shown that only 3-15% of the original amount of crude oil subject to oxidation, biodegradation, photochemical reactions, while from 10 to 40% of substance is evaporated.…”

Section: Software Descriptionmentioning

confidence: 99%

Complex of parallel programs for modeling oil products transport in coastal systems

Semenyakina

Проценко

2017

MATEC Web Conf.

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“…17-1101286 "Predictive modeling of hydrophysics and biological kinetics processes in inland water and marine systems of the South of Russia on supercomputers", the purpose of which is to obtain systematic information of the influence of chemical and physical water properties on the ecological situation of the Azov Sea [7][8][9][10][11][12][13][14]. Oceanographic, hydrochemical, hydrobiological observations were carried out according to standard procedures and guidelines for conducting oceanographic researches with the modern expedition equipment.…”

Section: Work Contentmentioning

confidence: 99%

Ecological and hydrophysical research of impact the vertical turbulent exchange coefficient on the concentration of dissolved oxygen in the bottom layer of shallow water

et al. 2017

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Abstract. The paper presents the results of hydrochemical observations obtained during the expedition on the scientific-research vessel "Deneb" in the Eastern part of the Azov Sea and the Taganrog Bay in July 2017. In the ecological and hydrophysical researches we have found abnormally low levels of dissolved oxygen in the bottom layer of the Azov Sea. Among the various approximations of the vertical turbulent exchange coefficient, the algebraic subgrid models are the most applicable. These models are based on the determination of turbulent flows as averaged multiplication of deviations over space or time (correlation) of the velocity components of the currents and a transferring physical quantity. The numerical experiment for determination of vertical turbulent exchange coefficient for some points of the Azov Sea was performed. Direct dependence between values of the vertical turbulent exchange coefficient and the concentration of dissolved oxygen in the bottom layer was obtained.

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The Ichthyofauna of the Upper Terek and Its Basin

Cited by 2 publications

References 0 publications

Complex of parallel programs for modeling oil products transport in coastal systems

Complex of parallel programs for modeling oil products transport in coastal systems

Ecological and hydrophysical research of impact the vertical turbulent exchange coefficient on the concentration of dissolved oxygen in the bottom layer of shallow water

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