Reactive Rayleigh–Taylor turbulence

Inertial effects on reactive particles advected by turbulence.

We study the problem of the advection of passive particles with inertia in a two-dimensional, synthetic, and stationary turbulent flow. The asymptotic analytical result and numerical simulations show the importance of inertial bias in collecting the particles preferentially in certain regions of the flow, depending on their density relative to that of the flow. We also study how these aggregate...

Geophysical Turbulence Geophysical Turbulence

Reduction of the Ablative RayleighTaylor Growth Rate with Gaussian Picket Pulses

LLE Review, Volume 95 139 Introduction The compression of an inertial confinement fusion (ICF)1 target must achieve high hot-spot temperatures (T 10 keV) and shell areal densities (rR 300 mg/cm2) to ignite. An ICF implosion is subject to the Rayleigh–Taylor (RT)2,3 instability as the shell accelerates inward and as the shell decelerates toward stagnation, causing small perturbations in the shel...

[Turbulence!].

Is 2D turbulence a conformal turbulence?

A critical analysis of the conformal approach to the theory of 2d turbulence is delivered. It is shown, in particular, that conformal minimal models cannot give a general turbulent solution, which should provide for constant fluxes of all vorticity integrals of motion. The problem of small-scale spectrum of two-dimensional turbulence is a peculiar problem among the variety of turbulent systems....