DIRECT NUMERIC SIMULATION OF EKMAN'S ESTABLISHED ESTRACTION DRAFT FROM THE INCOMPACT3D CODE

Ciência E Natura

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ISSN: 2179-460X
Editor Chefe: Marcelo Barcellos da Rosa
Início Publicação: 30/11/1979
Periodicidade: Quadrimestral

DIRECT NUMERIC SIMULATION OF EKMAN'S ESTABLISHED ESTRACTION DRAFT FROM THE INCOMPACT3D CODE

Ano: 2018 | Volume: 40 | Número: Especial
Autores: Michel Baptistella Stefanello, Leandro Pinto, Ricardo Frantz, Luca Mortarini, Otávio Costa Acevedo, Jorge Hugo Silvestrini, Gervásio Annes Degrazia
Autor Correspondente: Michel Baptistella Stefanello | [email protected]

Palavras-chave: direct numerical simulation1, ekman layer2, stable layer3

Resumos Cadastrados

Resumo Inglês:

In a diurnal cycle, different manifestations of a planetary boundary layer are generated by thermal and mechanical forcing. A stable boundary layer occurs when the soil surface has a lower temperature than the air above. In this layer, wind shear is the main mechanism of turbulence generation. In the present study, a direct numerical simulation of an Ekman layer on a surface is presented to study the different turbulent patterns that occur during evolution from a neutral boundary layer to a weakly stable boundary layer. The preliminary study shows the appearance of turbulent structures near the surface, due to the imposition of a stratification.