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Dual cascade and dissipation mechanisms in helical quantum turbulence
(American Physical Society, 2017-05)
While in classical turbulence helicity depletes nonlinearity and can alter the evolution of turbulent flows, in quantum turbulence its role is not fully understood. We present numerical simulations of the free decay of a ...
Reasoning about Sentiment and Knowledge Diffusion in Social Networks
(IEEE Computer Society, 2017-12)
Social media platforms, taken in conjunction, can be seen as complex networks; in this context, understanding how agents react to sentiments expressed by their connections is of great interest. Here, the authors show how ...
Energy transfer in Hall-MHD turbulence: Cascades, backscatter, and dynamo action
(Cambridge University Press, 2007-12)
Scale interactions in Hall magnetohydrodynamics (MHDs) are studied using both the mean field theory derivation of transport coefficients, and direct numerical simulations in three space dimensions. In the magnetically ...
Resistance analysis of morphologies in headwater mountain streams
(2021)
River flow velocity is determined by the energy available for flow motion and the energy fraction lost by flow resistance. We compared the performance of different equations for the Darcy-Weisbach resistance coefficient ...
Seasonal fish distribution along undammed rivers to reservoir cascadesDistribuição sazonal de peixes ao longo de rios não barrados a reservatórios em cascata
(Universidade Federal de LavrasPrograma de Pós-Graduação em Ecologia AplicadaUFLAbrasilDepartamento de Biologia, 2020)
Rotating helical turbulence. I. Global evolution and spectral behavior
(American Institute of Physics, 2010-03)
We present results from two 15363 direct numerical simulations of rotating turbulence where both energy and helicity are injected into the flow by an external forcing. The dual cascade of energy and helicity toward smaller ...
Rotating helical turbulence. II. Intermittencyscale invarianceand structures
(American Institute of Physics, 2010-03)
We study the intermittency properties of the energy and helicity cascades in two 15363 direct numerical simulations of helical rotating turbulence. Symmetric and antisymmetric velocity increments are examinedas well as ...
Helical turbulence prevails over inertial waves in forced rotating flows at high reynolds and low rossby numbers
(American Meteorological Society, 2011-10)
Astudy of spectral laws for helical turbulence in the presence of solid body rotation up to Reynolds numbers Re ~ 1 × 105 and down to Rossby numbers Ro ~ 3 × 10-3 is presented. The forcing function is a fully helical flow ...