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Espectros de turbulência em terreno complexo
(Universidade Federal de Santa Maria, 2008-08-20)
Throughout this paper a spectral analysis is conducted on the superficial limit layer in complex terrains. The data used were collected in the central part of the state of Rio Grande
do Sul, in the Valley of Jacuí River. ...
Modelo espectral de heisenberg aplicado ao decaímento da turbulência na camada residual
(Universidade Federal de Santa Maria, 2005-10-22)
In the study of the dispersion of contaminants in the atmosphere by computational simulations, the Eulerian approach, based in the diffusionadvection equation, is largely employed. In these simulations, concentration values ...
Caminhos para a complexidade na camada limite atmosférica noturna
(Universidade Federal de Santa Maria, 2011-12-09)
The focus of the present thesis is the nocturnal atmospheric boundary layer, under very stable conditions.
In such situation, the turbulence production by the vertical wind shear may have similar magnitude to
the total ...
Simulação numérica dos regimes da camada limite estável
(Universidade Federal de Santa Maria, 2019-11-11)
Recent studies have shown that the stable boundary layer (SBL) presents two distinct regimes.
In the weakly stable regime, turbulence is continous and similarity relationships are
valid, while in the very stable regime ...
Simulações em laboratório de escoamentos em meios estratificados
(Universidade Federal de Santa Maria, 2013-10-02)
In the present thesis, two distinct scientific problem in fluid mechanics are studied using
laboratory observation techniques. In the first of them, a tank was used to simulate microburst
propagation. In the experimental ...
Parametrização do transporte de energia cinética turbulenta na camada limite convectiva
(Universidade Federal de Santa Maria, 2011-12-15)
In this work a parameterization for the transport terms of the turbulent kinetic energy
(TKE) budget equation, valid for a convective boundary layer (CBL) is presented. This is
a hard task to acomplish from experimental ...