Alfvén wave phase mixing driven by velocity shear in two-dimensional open magnetic configurations

Details Alfvén wave phase mixing driven by velocity shear in two-dimensional open magnetic configurations Alfvén wave phase mixing driven by velocity shear in two-dimensional open magnetic configurations

Aug 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999jgr...10417057r&link_type=abstract

Journal of Geophysical Research, Volume 104, Issue A8, p. 17057-17068

Physics

Plasma Physics

20

Space Plasma Physics: Numerical Simulation Studies

Scientific paper

Phase mixing of torsional Alfvén waves in axisymmetric equilibrium magnetic configurations with purely poloidal magnetic field and stationary flow along the field lines in resistive viscous plasmas is studied. The characteristic wavelength along the magnetic field lines is assumed to be much smaller than the characteristic scale of inhomogeneity in the magnetic field direction, and the WKB method is used to obtain an analytic solution describing phase mixing. The general solution is applied to a particular configuration with the radial magnetic field and flow under the assumptions that the magnetic field and density are independent of the polar angle in the spherical coordinates and the flow velocity is independent of the radial coordinate. The only source of phase mixing in this configuration is velocity shear. The analytical solution is compared with a numerical simulation of the fully nonlinear resistive MHD equations. The numerical and analytical results are in good agreement. Consequences for wave energy deposition into the solar corona and solar wind and for the evolution of the Alfvén wave energy spectrum are discussed.

Affiliated with

Also associated with

No associations

Rating

Alfvén wave phase mixing driven by velocity shear in two-dimensional open magnetic configurations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Alfvén wave phase mixing driven by velocity shear in two-dimensional open magnetic configurations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alfvén wave phase mixing driven by velocity shear in two-dimensional open magnetic configurations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1268692