Decay of Dusty Fluid MHD Turbulence for Four-point Correlation in a Rotating System

Wave Decay in Mhd Turbulence

We present a model for nonlinear decay of the weak wave in three-dimensional incompressible magnetohydrodynamic (MHD) turbulence. We show that the decay rate is different for parallel and perpendicular waves. We provide a general formula for arbitrarily directed waves and discuss particular limiting cases known in the literature. We test our predictions with direct numerical simulations of wave...

Onset of Turbulence in a Rotating Fluid

Decay Timescales of MHD Turbulence inMolecular

We compute 3D models of supersonic, sub-Alfv enic, and super-Alfv enic decaying turbulence, with initial rms Alfv en and Mach numbers ranging up to ve, and an isothermal equation of state appropriate for star-forming interstellar clouds of molecular gas. We nd that in 3D the kinetic energy decays as t ? , with 0:85 < < 1:2. In 1D magnetized turbulence actually decays faster than unmagnetized tu...

Scalings of Inverse Energy Transfer and Energy Decay in 3-D Decaying Isotropic Turbulence with Non-rotating or Rotating Frame of Reference

Energy development of decaying isotropic turbulence in a 3-D periodic cube with non-rotating or rotating frames of reference is studied through direct numerical simulation using GPU accelerated lattice Boltzmann method. The initial turbulence is isotropic, generated in spectral space with prescribed energy spectrum E(κ)~κm in a range between κmin and ...

MHD Two-Fluid Flow and Heat Transfer between Two Inclined Parallel Plates in a Rotating System

Two-phase magnetohydrodynamic convective flow of electrically conducting fluid through an inclined channel is studied under the action of a constant transverse magnetic field in a rotating system. The fluids in the two phases are steady, incompressible, laminar, immiscible, and electrically conducting, having different densities, viscosities, and thermal and electrical conductivities. The trans...