Context. We present the first-ever simulations of non-ideal magnetohydrodynamical (MHD) stellar magnetospheric winds coupled with discdriven jets where the resistive and viscous accretion disc is self-consistently described. Aims. These innovative MHD simulations are devoted to the study of the interplay between a stellar wind (having different ejection mass rates) and an MHD disc-driven jet em...

We present the classical electromagnetic theory framework of reflection a light beam carrying orbital angular momentum (OAM) by magnetic structure with generic symmetry. Depending on magnetization symmetry, we find change in OAM content reflected due to magneto-optic interaction and an asymmetric far-field intensity profile. This leads three types helicoidal dichroism (MHD), observed when switc...

We continue our investigation of Lithium Lens (LL) for usage in ILC positron conversion system. Magneto-Hydrodynamic and Thermo-dynamic problems discussed in association with ~100 kA feeding pulsed current. Set of Partial Differential Equations used for description of magneto-hydrodynamics phenomena in liquid Lithium flow. Calculations confirm feasibility of liquid Lithium system. Some interest...

Aims. We present an investigation into how the cooling of the background plasma influences the propagation of slow and fast MHD wave modes supported by an unbounded, homogenous plasma. Previous investigations have suggested that the cooling of the plasma and a reduction in density could lead to the damping of fast magneto-acoustic oscillations. We aim to investigate whether cooling of the backg...

We present a Lagrangian-Eulerian strategy for proving uniqueness and local existence of solutions of limited smoothness for a class of incompressible hydrodynamic models including Oldroyd-B type complex fluid models and zero magnetic resistivity magneto-hydrodynamics equations.

We develop a formulation for the single-fluid/two-temperature equations for simulating two-species, compressible, non-equilibrium plasma flows. The divergence-free condition of the magnetic field is enforced via the characteristic decomposition of an extended nine-wave system. The source terms are modified appropriately to improve energy and momentum conservation accuracy. A spectral/hp element...

Abstract Spherical tokamaks are key to the successful design of operating scenarios future fusion reactors in areas divertor physics, neutral beam current drive and fast ion physics. MAST Upgrade, which has successfully concluded its first experimental campaign, was specifically designed address role radial gradient distribution driving excitation magneto-hydrodynamic (MHD) instabilities, such ...

The reconstruction of plasma parameters in the interplanetary medium is very important to understand propagation solar eruptions and for Space Weather application purposes. Because only a few spacecraft are measuring situ these parameters, reconstructions currently performed by running complex numerical Magneto-hydrodynamic (MHD) simulations starting from remote sensing observations Sun. Curren...

Lightning arc attachments during swept strokes are key information in the lightning protection design of fast-moving aircraft, wind turbines, rockets, etc. However, numerical modeling has not achieved success to predict movement sweeping arcs due limited understanding complex multi-physics convolution fluid at present. This work builds a dynamic magneto-hydrodynamic (MHD) model based on setup l...

We consider the combined role of the thermal ionization, magneto-rotational and gravitational instabilities in thin accretion disks around supermassive black holes. We find that in the portions of the disk unstable to the ionization instability, the gas remains well coupled to the magnetic field even on the cold, neutral branch of the thermal limit cycle. This suggests that the ionization insta...