Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...317..918h&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 317, June 15, 1987, p. 918-925.
Astronomy and Astrophysics
Astrophysics
10
Magnetohydrodynamic Waves, Solar Atmosphere, Surface Waves, Kelvin-Helmholtz Instability, Magnetohydrodynamic Stability, Standing Waves, Wave Propagation
Scientific paper
The nonlinear properties of MHD surface waves in the solar atmosphere are investigated analytically, assuming that the fluid is incompressible and that the waves are confined to a single surface, with semiinfinite regions on both sides. The governing equations are derived in detail, and qualitative results are presented in a graph. For propagating waves, second-order terms in the wave amplitude are found to lead to wave steepening at leading or trailing edges, the steepening rate becoming very large as the threshold for the linear Kelvin-Helmholtz instability is approached. Second-order effects on standing waves include crest and trough sharpening (increasing with time), a current independent of distance on the surface but decreasing exponentially with distance from the surface, and pressure-field fluctuations of infinite extent. It is suggested that these effects could account for a large fraction of solar-atmosphere heating.
No associations
LandOfFree
Incompressible magnetohydrodynamic surface waves - Nonlinear aspects 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 Incompressible magnetohydrodynamic surface waves - Nonlinear aspects, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Incompressible magnetohydrodynamic surface waves - Nonlinear aspects will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1814134