280 citations · 1k across the 13 of their papers we have counts for
13 papers
Lagrangian single-particle, multi-particle and topological analyses in turbulent Rayleigh-Bénard convection
Matti Ettel, Roshan J. Samuel, Michael Chertkov +1
We present three-dimensional direct numerical simulations of turbulent Rayleigh-Bénard convection (RBC) in the Lagrangian frame of reference for Rayleigh numbers $10^5 \leq Ra \leq…
Lagrangian Ellipsoid Diagnostics in Rough Two-Dimensional Synthetic Flows: Aspect-Ratio Saturation and Reduced Modeling
Michael Chertkov
We develop and test a Lagrangian methodology for extracting finite-cloud geometry and reduced dynamics from particle trajectories. A cloud in a rough, incompressible, two-dimension…
Reactive Rayleigh-Taylor Turbulence
M. Chertkov, V. Lebedev, N. Vladimirova
The Rayleigh-Taylor (RT) instability develops and leads to turbulence when a heavy fluid falls under the action of gravity through a light one. We consider this phenomenon accompan…
Growing condensate in two-dimensional turbulence
M. Chertkov, C. Connaughton, I. Kolokolov +1
We report a numerical study, supplemented by phenomenological explanations, of ``energy condensation'' in forced 2D turbulence in a biperiodic box. Condensation is a finite size ef…
Small-scale turbulent dynamo
M. Chertkov, G. Falkovich, I. Kolokolov +1
Kinematic dynamo theory is presented here for turbulent conductive fluids. We describe how inhomogeneous magnetic fluctuations are generated below the viscous scale of turbulence w…
Inverse cascade and intermittency of passive scalar in 1d smooth flow
M. Chertkov, I. Kolokolov, M. Vegrassola
Random advection of Lagrangian tracer scalar field by a one-dimensional, spatially smooth and short-correlated in time velocity field is considered. Scalar fluctuations ar…