Physics – Plasma Physics
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsm11b1747s&link_type=abstract
American Geophysical Union, Fall Meeting 2010, abstract #SM11B-1747
Physics
Plasma Physics
[7827] Space Plasma Physics / Kinetic And Mhd Theory, [7831] Space Plasma Physics / Laboratory Studies And Experimental Techniques, [7836] Space Plasma Physics / Mhd Waves And Instabilities, [7867] Space Plasma Physics / Wave/Particle Interactions
Scientific paper
Recent experiments conducted in the Large Plasma Device (LAPD) located at UCLA demonstrated efficient excitation of whistler and shear Alfven waves by a Rotating Magnetic Field (RMF) source. We present analytical theory, computational modeling and experimental results of the shear Alfven wave excitation by RMF source created by a phased orthogonal two-loop antenna in a plasma. An analytical theory and simulations using a three-dimensional cold two-fluid model of Alfven wave excitation were developed and compared with experiments. These comparisons show good agreement on linear shear Alfven wave properties, namely, spatio-temporal wave structure, dispersion relation, and the dependence of wave magnitude on the wave frequency. From the simulations it was found that the energy of the Alfven wave generated by the rotating magnetic field source is distributed among the kinetic energies of ions and electrons and the electromagnetic energy of the wave. The wave magnetic field power calculated from the experimental data and using a fluid model agrees within 1 percent. The RMF source is thus very efficient in generating shear Alfven waves. Work supported by ONR MURI grant.
Gekelman W. N.
Gumerov N.
Karavaev A. V.
Papadopoulos Konstantinos
Pribyl Patrick
No associations
LandOfFree
Alfven Wave Generation by a Rotating Magnetic Field Source: Theory, Modeling and Experimental Results 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 Alfven Wave Generation by a Rotating Magnetic Field Source: Theory, Modeling and Experimental Results, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alfven Wave Generation by a Rotating Magnetic Field Source: Theory, Modeling and Experimental Results will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1466140