Hydro-, magnetohydro-, and dust-gas dynamics of protoplanetary disks

G Lesur, B Ercolano, M Flock, MK Lin, CC Yang… - arXiv preprint arXiv …, 2022 - arxiv.org
The building of planetary systems is controlled by the gas and dust dynamics of
protoplanetary disks. While the gas is simultaneously accreted onto the central star and …

MRI turbulence in accretion discs at large magnetic Prandtl numbers

LE Held, G Mamatsashvili - Monthly Notices of the Royal …, 2022 - academic.oup.com
The effect of large magnetic Prandtl number Pm (the ratio of viscosity to resistivity) on the
turbulent transport and energetics of the magnetorotational instability (MRI) is poorly …

The influence of accretion disk thickness on the large-scale magnetic dynamo

JD Hogg, CS Reynolds - The Astrophysical Journal, 2018 - iopscience.iop.org
The evolution of the magnetic field from the large-scale dynamo is considered a central
feature of the accretion disk around a black hole. The resulting low-frequency oscillations …

On the Kelvin–Helmholtz instability with smooth initial conditions–linear theory and simulations

T Berlok, C Pfrommer - Monthly Notices of the Royal …, 2019 - academic.oup.com
Abstract The Kelvin–Helmholtz instability (KHI) is a standard test of hydrodynamic and
magnetohydrodynamic (MHD) simulation codes and finds many applications in …

Zero net flux MRI turbulence in disks: sustenance scheme and magnetic Prandtl number dependence

G Mamatsashvili, G Chagelishvili… - The Astrophysical …, 2020 - iopscience.iop.org
We investigate sustenance and dependence on magnetic Prandtl number (Pm) for
magnetorotational instability (MRI)-driven turbulence in Keplerian disks with zero net …

Angular momentum transport and large eddy simulations in magnetorotational turbulence: the small Pm limit

H Meheut, S Fromang, G Lesur, M Joos… - Astronomy & …, 2015 - aanda.org
Context. Angular momentum transport in accretion discs is often believed to be due to
magnetohydrodynamic turbulence mediated by the magnetorotational instability (MRI) …

Multiscale anisotropic fluctuations in sheared turbulence with multiple states

KP Iyer, F Bonaccorso, L Biferale, F Toschi - Physical Review Fluids, 2017 - APS
We use high-resolution direct numerical simulations to study the anisotropic contents of a
turbulent, statistically homogeneous flow with random transitions among multiple energy …

Local and global aspects of the linear MRI in accretion discs

HN Latter, S Fromang, J Faure - Monthly Notices of the Royal …, 2015 - academic.oup.com
We revisit the linear magnetorotational instability (MRI) in a cylindrical model of an accretion
disc and uncover a number of attractive results overlooked in previous treatments. In …

MRI turbulence in vertically stratified accretion discs at large magnetic Prandtl numbers

LE Held, G Mamatsashvili… - Monthly Notices of the …, 2024 - academic.oup.com
The discovery of the first binary neutron star merger, GW170817, has spawned a plethora of
global numerical relativity simulations. These simulations are often ideal (with dissipation …

Active modes and dynamical balances in MRI turbulence of Keplerian disks with a net vertical magnetic field

D Gogichaishvili, G Mamatsashvili… - The Astrophysical …, 2018 - iopscience.iop.org
Active Modes and Dynamical Balances in MRI Turbulence of Keplerian Disks with a Net
Vertical Magnetic Field - IOPscience This site uses cookies. By continuing to use this site you …