Geodesic
Two approaches to describe the turbulent exchange within the atmospheric surface layer
Matematičeskoe modelirovanie, Tome 29 (2017) no. 5, pp. 46-60.

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Two two-dimensional models describing the interaction of the air flow with heterogeneous vegetation cover within the atmospheric surface layer are presented. The models use the different methods to close the averaged system of the Navier–Stokes and the continuity equations and apply also the various approaches to describe the interaction of the turbulent air flow with vegetation elements. The first model is based on so-called 1.5 order closure scheme and the interaction of the air flow with vegetation is described using the force of kinetic friction. In the second model the first order closure is used and the wind field nearby vegetation borders is modelled by means of the theory of contrast structures. The results of numerical experiments provided by the models to describe the spatial wind distribution within the atmospheric surface layer after interaction of the air flow with non-uniform vegetation cover such as the forest belt and clear-cutting area are presented.
Keywords: Navier–Stokes equation, turbulent exchange, atmospheric surface layer, heterogeneous vegetation, closure of system of equations, contrast structure, internal transition layer, forest belt, clear-cutting. 
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N. T. Levashova; J. V. Muhartova; A. V. Olchev. Two approaches to describe the turbulent exchange within the atmospheric surface layer. Matematičeskoe modelirovanie, Tome 29 (2017) no. 5, pp. 46-60. http://geodesic.mathdoc.fr/item/MM_2017_29_5_a3/

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