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Evaluation of effective eddy diffusive coefficients using radar observations of turbulence in the stratosphere
(American Geophysical Union, 1984-03)
Radar observations show that thin persistent layers of turbulence occur sporadically in the troposphere and stratosphere. Two probabilistic approaches are used to show that the vertical eddy diffusivity due to such layers ...
Comparative analysis of different models for the turbulent Prandtl number
(Asme-amer Soc Mechanical EngNew YorkEUA, 1999)
On single limits and the asymptotic behaviour of separating turbulent boundary layers
(ElsevierBrasilNúcleo Interdisciplinar de Dinâmica dos Fluidos, 2019)
Estudo sobre a turbulência na camada limite planetária
(Universidade Federal de Santa MariaCentro de Ciências Naturais e Exatas, 2008-01-31)
In this research was made a study about the development of the boundary layer in Pedras Altas – RS. This study is made in two parts, fist a theoretician introduction then some datum, collected from a meteorological tower, ...
Simulations of turbulent channels with prescribed velocity profiles
(Cambridge University Press, 2013-05)
Direct numerical simulations of turbulent channels with artificially prescribed velocity profiles are discussed, using both natural and purposely incorrect profiles. It is found that turbulence develops correctly when ...
Modelo simplificado para turbulência na camada limite noturna
(Universidade Federal de Santa MariaBRFísicaUFSMPrograma de Pós-Graduação em Física, 2016-03-08)
The appropriate estimation of turbulent fluxes in very stable conditions is a great challenge
for numerical models that simulate the average behavior of the stable boundary layer.
Although many features of the flow are ...
The perturbation of a turbulent boundary layer by a two-dimensional hill
(Abcm Brazilian Soc Mechanical Sciences & EngineeringRio De Janeiro RjBrasil, 2013)
The persistence of logarithmic solutions in turbulent boundary layer systems
(Springer VerlagBrasilNúcleo Interdisciplinar de Dinâmica dos Fluidos, 2019)
Turbulence spectral characteristics of surface boundary layer
(Universidade Federal de Rio Grande do Sul, 2015-06-21)
A spectral analysis from wind tunnel and near-neutral atmosphere data was realized. The measurement spectra are compared with von Kármán and Kaimal expressions and a complementary evaluation based on the previous work of ...