منابع مشابه
A DLA model for Turbulence
A connection between fractal dimensions of ”turbulent facets”, and fractal dimensions in DLA is shown.
متن کاملParametric study of a viscoelastic RANS turbulence model in the fully developed channel flow
One of the newest of viscoelastic RANS turbulence models for drag reducing channel flow with polymer additives is studied in different flow and rheological properties. In this model, finitely extensible nonlinear elastic-Peterlin (FENE-P) constitutive model is used to describe the viscoelastic effect of polymer solution and turbulence model is developed in the k-ϵ-(ν^2 ) ̅-f framework. The geome...
متن کاملA Model for a Turbulence System Generator
In this paper we propose a model of a nonautonomous dynamical system whose operations show turbulent behavior. The appearance of the trajectory is similar to that of a simplified tornado. The electronic circuit implementation of this model contains simply two linear capacitors, a voltage-controlled switch (VCS), a linear inductor, two resistors, and a nonlinear negative resistor. Computer simul...
متن کاملOn a Fractal Model for Turbulence
In characterizing fully developed turbulence by means of statistical methods, it is still an actual problem to explain what happens if one transits from large scales (scale of the system) to small scales (dissipationrange scale or Kolmogorov microscale). From experiments it is known that the shape of the probability density functions (PDF) of velocity differences between two points dur = (y(y +...
متن کاملPredictability in a Model of Geophysical Turbulence
The nature of predictability is examined in a numerical model relevant to the midlatitude atmosphere and oceans. The approach followed is novel and uses new theoretical tools from information theory, namely entropy functionals, as measures of information content and their application to finite ensembles. Particular attention is paid here to the practical application of these methods to the prob...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physics of Fluids A: Fluid Dynamics
سال: 1993
ISSN: 0899-8213
DOI: 10.1063/1.858585