Analytical description of stationary ideal MHD flows with constant total pressure

Analytical Description of Stationary Ideal Mhd Flows with Constant Total Pressure

Incompressible stationary flows of ideal plasma are observed. By introduction of curvilinear system of coordinates in which streamlines and magnetic force lines form a family of coordinate surfaces, MHD equations are partially integrated and brought to a certain convenient form. It is demonstrated that the admissible group of Bogoyavlenskij’s symmetry transformations [1] performs as a scaling t...

Full analytical description of graviosmotic volume flows.

A full analytical description of graviosmotic volume flows is presented. This was done with the use of theoretical models earlier developed on the basis of interferometric studies of graviosmotic systems. The description includes both stationary and non-stationary graviosmotic flows induced with solutions whose density decreases as well as increases with increasing concentration. The obtained e...

Order parameter description of stationary partially fluidized shear granular flows.

We carry out a detailed comparison of soft-particle molecular dynamics simulations with the theory of partially fluidized shear granular flows. We verify by direct simulations a constitutive relation based on the separation of the shear stress tensor into a fluid part proportional to the strain rate tensor, and a remaining solid part. The ratio of these two components is determined by the order...

MHD Description of Plasma

MHD Accretion-Ejection Flows

In this proceeding I present recent works dealing with MHD simulations describing resistive accretion disks continuously launching large-scale, self-collimated MHD jets. In particular, I discuss the physical conditions required to produce these outflows and the related numerical issues. As an illustration I also present axisymmetric MHD numerical simulations of such accretion-ejection engines, ...