Investigation of the atmospheric turbulent flow using wind tunnel tests and numerical simulation

Author(s)

Daniel Schuch ^[1] ; Edson R. Marciotto ^[2] ; Otávio Acevedo ^[3] ; Gilberto Fisch ^[4] ; Ana Cristina Avelar ^[5]

Affiliation

^[1] Instituto Nacional de Pesquisas Espaciais (INPE) - Brasil

^[2] Instituto de Aeronáutica e Espaço (IAE) - Brasil

^[3] Universidade Federal de Santa Maria (UFSM) - Brasil

^[4] Instituto de Aeronáutica e Espaço (IAE) - Brasil

^[5] Instituto de Aeronáutica e Espaço (IAE) - Brasil

• Document type: Journal article
• Source: Revista Brasileira de Meteorologia; v. 29, n. 3, p. 338-350, 2014-09-00.

Abstract

The structure of the wind field and atmospheric turbulence generated inside a shallow cavity is analyzed using wind tunnel tests and a 2-D Large-Eddy Simulation (LES) model. The cavities are static mock-up that can represent small clearings inside forest in Amazonia or urban canyons representing the geometry of modern cities. The results suggest that, despite differences in the scales, the organization of turbulence in the two experiments contains similarities in some regions. It was verified the dependency of the turbulence, wind profile and Turbulent Kinetic Energy dependence against flow above canopy, its size and its relative position inside the gap. (AU)

• FAPESP's process: 08/57719-9 - Program on Climate Change - INCT CLIMA
• Grantee: Carlos Afonso Nobre
• Support Opportunities: Research Program on Global Climate Change - Thematic Grants
• FAPESP's process: 10/16510-0 - Characterization of the Surface Boundary Layer at the Alcântara Launch Center and of its Coupling with Surface Processes
• Grantee: Edson Roberto Marciotto
• Support Opportunities: Scholarships in Brazil - Post-Doctoral