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Numerical modeling of coherent structures attendant on impurity propagation in the atmospheric boundary layer over a forest canopy

Abstract : Three-dimensional large eddy simulation is used to solve the problem for a homogeneous forest canopy. The development of the Kelvin-Helmholtz instability above the canopy leads to the formation of coherent structures in the atmosphere flow, which are reproduced in the calculations. The statistical characteristics of the flow obtained from the numerical modeling are compared with experimental data. The passive admixture transfer from the canopy to the clean atmosphere is studied for two cases, namely, for constant and variable coupled concentration of the impurity in the canopy.
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https://hal.archives-ouvertes.fr/hal-01030826
Contributor : Elena Rosu <>
Submitted on : Tuesday, July 22, 2014 - 3:00:33 PM
Last modification on : Thursday, January 23, 2020 - 6:22:11 PM

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K. Gavrilov, Dominique Morvan, Gilbert Accary, D.V. Lyubimov, Sofiane Meradji, et al.. Numerical modeling of coherent structures attendant on impurity propagation in the atmospheric boundary layer over a forest canopy. Fluid Dynamics / Izvestiya Akademii Nauk - Mekhanika Zhidkosti i Gaza, MAIK Nauka/Interperiodica (МАИК Наука/Интерпериодика), 2011, 46 (1), pp.138-147. ⟨10.1134/S0015462811010169⟩. ⟨hal-01030826⟩

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