Keywords: MHD flow control Nonlinear boundary control Active mixing enhancement Distributed parameter systems a b s t r a c t A nonlinear Lyapunov-based boundary feedback control law is proposed for mixing enhancement in a 2D magnetohydrodynamic (MHD) channel flow, also known as Hartmann flow, which is electrically conducting, incompressible, and subject to an external transverse magnetic field...

ABSTRACT We have simulated the evolution of non-thermal cosmic ray electrons (CREs) in 3D relativistic magneto hydrodynamic (MHD) jets evolved up to a height 9 kpc. The CREs been space and energy concurrently with jet fluid, duly accounting for radiative losses acceleration at shocks. show that stable MHD instabilities expected trends regular flow spine hotspot followed by settling backflow. Ho...

We present preliminary results from two computational magnetohydrodynamic (MHD) studies of magnetic nozzles. The first study models the magnetic nozzle expansion of a plasma into a near vacuum with a resistive MHD solver. Results from resistive MHD simulations suggest that further model development is necessary to replicate experimental results within the desired physical regime. The second stu...

We present a linear analysis of inviscid, incompressible, magnetohydrodynamic (MHD) shallow water systems. In spherical geometry, a generic property of such systems is the existence of five wave modes. Three of them (two magneto-Poincaré modes and one magneto-Rossby mode) are previously known. The other two wave modes are strongly influenced by the magnetic field and rotation, and have substant...

We present a numerical investigation of tapered arteries that addresses the transient simulation of non-Newtonian bio-magnetic fluid dynamics (BFD) of blood through a stenosis artery in the presence of a transverse magnetic field. The current model is consistent with ferro-hydrodynamic (FHD) and magneto-hydrodynamic (MHD) principles. In the present work, blood in small arteries is analyzed usin...

Current-day cosmic ray (CR) propagation studies use static Milky-Way models and fit parametrized source distributions to data. Instead, we three-dimensional magneto-hydrodynamical (MHD) simulations of isolated galaxies with the moving-mesh code AREPO that self-consistently accounts for hydrodynamic effects CR protons. In post-processing, calculate their steady-state spectra, taking into account...

We report on recent extensions and improvements to the Legolas code, which is an open-source, finite element-based numerical framework solve linearised (magneto)hydrodynamic equations for a three-dimensional force- thermally balanced state with nontrivial one-dimensional variation. The standard Fourier modes imposed give rise complex, generalised non-Hermitian eigenvalue problem solved quantify...

In recent years, the study of magnetohydrodynamic (MHD) accretion flow around compact objects has become very important since the magnetic field in ubiquitous in the universe and it should play a part in the black hole accretion, especially close to the inner disk. The pioneering works of Mestel (1967) and Weber & Davis (1967) etc. were further extended by Chakrabarti (1990) for rotating compac...

The metriplectic framework, which allows for the formulation of an algebraic structure for dissipative systems, is applied to visco-resistive Magneto-Hydrodynamics (MHD), adapting what had already been done for non-ideal Hydrodynamics (HD). The result is obtained by extending the HD symmetric bracket and free energy to include magnetic …eld dynamics and resistive dissipation. The correct equati...