Rayleigh–Taylor and Richtmyer–Meshkov instability induced flow, turbulence, and mixing. II

Y Zhou - Physics Reports, 2017 - Elsevier
Abstract Rayleigh–Taylor (RT) and Richtmyer–Meshkov (RM) instabilities are well-known
pathways towards turbulent mixing layers, in many cases characterized by significant mass …

Comparing the statistics of interstellar turbulence in simulations and observations-Solenoidal versus compressive turbulence forcing

C Federrath, J Roman-Duval, RS Klessen… - Astronomy & …, 2010 - aanda.org
Context. Density and velocity fluctuations on virtually all scales observed with modern
telescopes show that molecular clouds (MCs) are turbulent. The forcing and structural …

The statistics of supersonic isothermal turbulence

AG Kritsuk, ML Norman, P Padoan… - The Astrophysical …, 2007 - iopscience.iop.org
We present results of large-scale three-dimensional simulations of supersonic Euler
turbulence with the piecewise parabolic method and multiple grid resolutions up to 2048 3 …

Large-eddy simulations of magnetohydrodynamic turbulence in heliophysics and astrophysics

M Miesch, W Matthaeus, A Brandenburg… - Space Science …, 2015 - Springer
We live in an age in which high-performance computing is transforming the way we do
science. Previously intractable problems are now becoming accessible by means of …

The fractal density structure in supersonic isothermal turbulence: solenoidal versus compressive energy injection

C Federrath, RS Klessen, W Schmidt - The Astrophysical Journal, 2009 - iopscience.iop.org
In a systematic study, we compare the density statistics in high-resolution numerical
experiments of supersonic isothermal turbulence, driven by the usually adopted solenoidal …

Numerical dissipation vs. subgrid-scale modelling for large eddy simulation

T Dairay, E Lamballais, S Laizet… - Journal of Computational …, 2017 - Elsevier
This study presents an alternative way to perform large eddy simulation based on a targeted
numerical dissipation introduced by the discretization of the viscous term. It is shown that this …

Hyperviscosity, Galerkin truncation, and bottlenecks in turbulence

U Frisch, S Kurien, R Pandit, W Pauls, SS Ray, A Wirth… - Physical review …, 2008 - APS
It is shown that the use of a high power α of the Laplacian in the dissipative term of
hydrodynamical equations leads asymptotically to truncated inviscid conservative dynamics …

Energy spectrum in high-resolution direct numerical simulations of turbulence

T Ishihara, K Morishita, M Yokokawa, A Uno… - Physical Review …, 2016 - APS
A study is made about the energy spectrum E (k) of turbulence on the basis of high-
resolution direct numerical simulations (DNSs) of forced incompressible turbulence in a …

Two regimes of turbulent fragmentation and the stellar initial mass function from primordial to present-day star formation

P Padoan, Å Nordlund, AG Kritsuk… - The Astrophysical …, 2007 - iopscience.iop.org
Abstract The Padoan and Nordlund model of the stellar initial mass function (IMF) is derived
from low-order statistics of supersonic turbulence, neglecting gravity (eg, gravitational …

Dust diffusion in protoplanetary disks by magnetorotational turbulence

A Johansen, H Klahr - The Astrophysical Journal, 2005 - iopscience.iop.org
We measure the turbulent diffusion coefficient of dust grains embedded in magnetorotational
turbulence in a protoplanetary disk directly from numerical simulations and compare it to the …