Structure and computation of two-dimensional incompressible extended MHD

Structure and computation of two-dimensional incompressible extended MHD

A New Approximate Block Factorization Preconditioner for Two-Dimensional Incompressible (Reduced) Resistive MHD

The one-fluid visco-resistive MHD model provides a description of the dynamics of a charged fluid under the influence of an electromagnetic field. This model is strongly coupled, highly nonlinear, and characterized by physical mechanisms that span a wide range of interacting time scales. Solutions of this system can include very fast component time scales to slowly varying dynamical time scales...

Simulations of Incompressible Mhd Turbulence

We simulate incompressible, MHD turbulence using a pseudo-spectral code. Our major conclusions are as follows. 1) MHD turbulence is most conveniently described in terms of counter propagating shear Alfvén and slow waves. Shear Alfvén waves control the cascade dynamics. Slow waves play a passive role and adopt the spectrum set by the shear Alfvén waves. Cascades composed entirely of shear Alfvén...

Hamiltonian Formulation of Two-Dimensional Gyroviscous MHD

This work is concerned with the Hamiltonian field formulation of the equations that describe two-dimensional non-dissipative gyroviscous onefluid plasmas [I, 2, 3, 4J. These equations differ from the usual Eulerian form of ideal MHO by the inclusion of a non-entropy-producing stress tensor that arises from the finiteness of the ion gyroradius. The physics of this stress \ensor is important for ...

Pseudospectral reduction of incompressible two-dimensional turbulence