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Intermittency in the isotropic component of helical and nonhelical turbulent flows
(American Physical Society, 2010-01)
We analyze the isotropic component of turbulent flows spanning a broad range or Reynolds numbers. The aim is to identify scaling laws and their Reynolds number dependence in flows under different mechanical forcings. To ...
Chaos induced by turbulent and erratic functions
(European Soc Fuzzy Logic & Technology, 2009-01-01)
Let ( X, d) be a compact metric space and f : X -> X a continuous function and consider the hyperspace (K(X), H) of all nonempty compact subsets of X endowed with the Hausdorff metric induced by d. Let (f) over bar : K(X) ...
Chaos induced by turbulent and erratic functions
(2009-12-01)
Let (X, d) be a compact metric space and f: X → X a continuous function and consider the hyperspace (K(X), H) of all nonempty compact subsets of X endowed with the Hausdorff metric induced by d. Let f̄: K(X) → K (X) be ...
Chaos induced by turbulent and erratic functions
(2009-12-01)
Let (X, d) be a compact metric space and f: X → X a continuous function and consider the hyperspace (K(X), H) of all nonempty compact subsets of X endowed with the Hausdorff metric induced by d. Let f̄: K(X) → K (X) be ...
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 ...
Time decorrelation in isotropic magnetohydrodynamic turbulence
(Europhysics Letters, 2011-12)
Time decorrelation in isotropic incompressible magnetohydrodynamic (MHD) turbulence is studied using three-dimensional numerical simulation. Eulerian and wavenumber-dependent correlation functions are obtained. Scaling ...
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 ...
Multifractality and the effect of turbulence on the chaotic dynamics of a He-Ne laser
(Spie, 2013-09)
We propose the use of multifractal detrended fluctuation analysis (MF-DFA) to measure the influence of atmospheric turbulence on the chaotic dynamics of a HeNe laser. Fit ranges for MF-DFA are obtained with goodness of ...
Alternative derivation of exact law for compressible and isothermal magnetohydrodynamics turbulence
(American Physical Society, 2017-11)
The exact law for fully developed homogeneous compressible magnetohydrodynamics (CMHD) turbulence is derived. For an isothermal plasma, without the assumption of isotropy, the exact law is expressed as a function of the ...