124 citations · 149 across the 5 of their papers we have counts for
11 papers
Maximum Drag Reduction Asymptotes and the Cross-Over to the Newtonian Plug
R. Benzi, E. De Angelis, I. Procaccia +2
We employ the full FENE-P model of hydrodynamics of a dilute polymer solutions to derive a theoretical approach to drag reduction in wall bounded turbulence. We recapture the resul…
Velocity Fluctuations in Dynamical Fracture: the Role of Microcracks
E. Bouchbinder, D. Kessler, I. Procaccia
We address the velocity fluctuations of fastly moving cracks in stressed materials. One possible mechanism for such fluctuations is the interaction of the main crack with micro cra…
Stress field around arbitrarily shaped cracks in two-dimensional elastic materials
Eran Bouchbinder, Joachim Mathiesen, Itamar Procaccia
The calculation of the stress field around an arbitrarily shaped crack in an infinite two-dimensional elastic medium is a mathematically daunting problem. With the exception of few…
Drag Reduction by Polymers in Wall Bounded Turbulence
Victor S. L'vov, Anna Pomyalov, Itamar Procaccia +1
We address the mechanism of drag reduction by polymers in turbulent wall bounded flows. On the basis of the equations of fluid mechanics we present a quantitative derivation of the…
On the Fractal Dimension of the Visible Universe
Jean-Pierre Eckmann, Esa Järvenpää, Maarit Järvenpää +1
Estimates of the fractal dimension of the set of galaxies in the universe, based on ever improving data sets, tend to settle on . This result raised a raging debate…
Analytic Theory of Fractal Growth Patterns in 2 Dimensions
Benny Davidovich, Itamar Procaccia
Diffusion Limited Aggregation (DLA) is a model of fractal growth that was introduced in 1981 and had since attained a paradigmatic status due to its simplicity and its underlying r…