Other
Scientific paper
Jul 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aipc..382..153s&link_type=abstract
Proceedings of the eigth international solar wind conference: Solar wind eight. AIP Conference Proceedings, Volume 382, pp. 153
Other
Magnetohydrodynamics And Plasmas, Magnetohydrodynamic Waves
Scientific paper
A nonlinear, time-dependent, ideal MHD code has been developed and used to compute the flow induced by nonlinear Alfvén waves propagating in an isothermal, stratified, plane-parallel atmosphere. The code is based on characteristic equations solved in a Lagrangian frame. Results show that resonance behavior of Alfvén waves exists in the presence of a continuous density gradient and that the waves with periods corresponding to resonant peaks exert considerably more force on the medium than off-resonance periods. If only off-peak periods are considered, the relationship between the wave period and induced longitudinal velocity shows that short period WKB waves push more on the background medium than longer period, non-WKB, waves. The results also show the development of the longitudinal waves induced by finite amplitude Alfvén waves. Wave energy transferred to the longitudinal mode may provide a source of localized heating.
Musielak Zdzislaw E.
Stark B. A.
Suess Steve T.
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