179 citations · 351 across the 9 of their papers we have counts for
5 papers · 1 filter
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…
Multi-Zone Shell Model for Turbulent Wall Bounded Flows
Victor S. L'vov, Anna Pomyalov, Vasil Tiberkevich
We suggested a \emph{Multi-Zone Shell} (MZS) model for wall-bounded flows accounting for the space inhomogeneity in a "piecewise approximation", in which cross-section area of the…
Clustering of inertial particles in a turbulent flow
Tov Elperin, Nathan Kleeorin, Michael A. Liberman +3
We analyzed formation of small-scale inhomogeneities of particle spatial distribution (particle clustering) in a turbulent flow. The particle clustering is a consequence of a spont…
Eulerian Statistically Preserved Structures in Passive Scalar Advection
Yoram Cohen, Anna Pomyalov, Itamar Procaccia
We analyze numerically the time-dependent linear operators that govern the dynamics of Eulerian correlation functions of a decaying passive scalar advected by a stationary, forced…
Strong Universality in Forced and Decaying Turbulence
Victor S. L'vov, Ruben Pasmanter, Anna Pomyalov +1
The weak version of universality in turbulence refers to the independence of the scaling exponents of the th order strcuture functions from the statistics of the forcing. The st…