Other
Scientific paper
Oct 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986inpr.conf..171v&link_type=abstract
In its Summer School on Interstellar Processes: Abstracts of Contributed Papers p 171-172 (SEE N87-15043 06-90)
Other
Boundary Conditions, Field Strength, Magnetohydrodynamic Waves, Stellar Magnetic Fields, Stellar Models, Angular Momentum, Equations Of Motion, Wave Reflection
Scientific paper
The problem of reflection of magnetohydrodynamic (MHD) waves at the boundary of a numerical grid has to be resolved in order to obtain reliable results for the end state of the (isothermal) collapse of a rotating, magnetic protostellar cloud. Since the goal of investigating magnetic braking in collapse simulations is to see if the transport of angular momentum via alfven waves is large enough to solve the angular momentum problem an approximation that artificially suppresses large amplitudes in the MHD waves can be self-defeating. For this reason, four alternate methods of handling reflected waves where no assumptions are made regarding the amplitudes of the waves were investigated. In order to study this problem (of reflection) without interference from other effects these methods were tried on two simpler cases. The four methods are discussed.
Black David C.
Scott Eugene Howard
Vanajakshi T. C.
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