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International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN Imprimir: 2152-5102
ISSN On-line: 2152-5110

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International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v30.i4.40
15 pages

Dynamics and Energetics of Heavy Gas Dispersion in Bottom Atmospheric Boundary Layer

Ivan V. Kovalets
Institute for Problems of Mathematical Machines and Systems Problems of National Academy of Sciences of Ukraine, Kyiv
Vladimir S. Maderich
Institute of Problems of Mathematical Machines and Systems of National Academy of Sciences of Ukraine, Kyiv, Ukraine

RESUMO

The results of simulation of the heavy cloud dispersion in the atmospheric boundary layer are presented. The model of the turbulent dynamics of the heavy cloud is described. The Favre - Reynolds averaging procedure is used, that results in the less complicated form of equations than the Reynolds averaging procedure. The first-order turbulence model is applied for the calculation of turbulent fluxes and stresses. The numerical algorithm of the problem solution is briefly described with use of the the conservative implicit finite-difference scheme. The splitting method upon the space directions and physical processes is used. The results of calculations are compared with the results of laboratory and field experiments. The analysis of the energetics of the heavy gas dispersion processes is given.


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