492 citations · 3.8k across the 96 of their papers we have counts for
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Shell Model of Two-dimensional Turbulence in Polymer Solutions
Roberto Benzi, Nizan Horesh, Itamar Procaccia
We address the effect of polymer additives on two dimensional turbulence, an issue that was studied recently in experiments and direct numerical simulations. We show that the same…
Stochastic Resonance in Two Dimensional Landau Ginzburg Equation
Roberto Benzi, Alfonso Sutera
We study the mechanism of stochastic resonance in a two dimensional Landau Ginzburg equation perturbed by a white noise. We shortly review how to renormalize the equation in order…
Intermittency in Turbulence: computing the scaling exponents in shell models
Roberto Benzi, Luca Biferale, Mauro Sbragaglia +1
We discuss a stochastic closure for the equation of motion satisfied by multi-scale correlation functions in the framework of shell models of turbulence. We give a systematic proce…
Theory of Concentration Dependence in Drag Reduction by Polymers and of the MDR asymptote
R. Benzi, E. S. C. Ching, N. Horesh +1
A simple model of the effect of polymer concentration on the amount of drag reduction in turbulence is presented, simulated and analyzed. The qualitative phase diagram of drag coef…
Shell Model for Drag Reduction with Polymer Additive in Homogeneous Turbulence
Roberto Benzi, Elisabetta De Angelis, Rama Govindarajan +1
Recent direct numerical simulations of the FENE-P model of non-Newtonian hydrodynamics revealed that the phenomenon of drag reduction by polymer additives exists (albeit in reduced…