Buscar
Mostrando ítems 1-10 de 370
STUDY OF THE EQUATORIAL ATLANTIC OCEAN MIXING LAYER USING A ONE-DIMENSIONAL TURBULENCE MODEL
(INST OCEANOGRAFICO, UNIV SAO PAULO, 2010)
The General Ocean Turbulence Model (GOTM) is applied to the diagnostic turbulence field of the mixing layer (ML) over the equatorial region of the Atlantic Ocean. Two situations were investigated: rainy and dry seasons, ...
SYNCHRONIZATION OF CHAOS AND THE TRANSITION TO WAVE TURBULENCE
(WORLD SCIENTIFIC PUBL CO PTE LTDSINGAPORE, 2012)
We investigated the transition to wave turbulence in a spatially extended three-wave interacting model, where a spatially homogeneous state undergoing chaotic dynamics undergoes spatial mode excitation. The transition to ...
Development of a low-Reynolds-number k-ω model for FENE-P fluids
(2013-01-01)
A low-Reynolds-number k-ω model for Newtonian fluids has been developed to predict drag reduction of viscoelastic fluids described by the FENE-P model. The model is an extension to viscoelastic fluids of the model for ...
A Reynolds stress model for turbulent flows of viscoelastic fluids
(Taylor & Francis Ltd, 2013-12-01)
A second-order closure is developed for predicting turbulent flows of viscoelastic fluids described by a modified generalised Newtonian fluid model incorporating a nonlinear viscosity that depends on a strain-hardening ...
Numerical simulation of a radial diffuser turbulent airflow
(Elsevier B.V., 2007-06-15)
In the present work are presented results from numerical simulations performed with the ANSYS-CFX (R) code. We have studied a radial diffuser flow case, which is the main academic problem used to study the flow behavior ...
Characterizing inertial and convective optical turbulence by detrended fluctuation analysis
(Spie, 2013-10)
Atmospheric turbulence is usually simulated at the laboratory by generating convective free flows with hot surfaces, or heaters. It is tacitly assumed that propagation experiments in this environment are comparable to those ...
Numerical simulation of an ethanol turbulent spray flame with RANS and diffusion combustion model
(Heidelberg, 2014-03-06)
A detailed numerical simulation of ethanol
turbulent spray combustion on a rounded jet flame is pre-
sented in this article. The focus is to propose a robust
mathematical model with relatively low complexity sub-
models ...
New developments in isotropic turbulent models for FENE-P fluids
(2018-01-29)
The evolution of viscoelastic turbulent models, in the last years, has been significant due to the direct numeric simulation (DNS) advances, which allowed us to capture in detail the evolution of the viscoelastic effects ...
Transition to quantum turbulence in finite-size superfluids
(WILEY-BLACKWELL, 2011)
A novel concept of quantum turbulence in finite size superfluids, such as trapped bosonic atoms, is discussed. We have used an atomic (87)Rb Bose-Einstein condensate (BEC) to study the emergence of this phenomenon. In our ...