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- W1844295786 abstract "We have performed 3-D numerical magnetohydrodynamic (MHD) jet experiments to study the instabilities associated with strongly toroidal magnetic fields and determine if such magnetic configurations in jets are as unstable as similar situations are found to be in the laboratory and in analytical estimates. A perfectly conducting Keplerian disc with fixed density, rotational velocity and pressure is used as a lower boundary for the jet. The energy equation is solved, with the inclusion of self-consistently computed heating by viscous and magnetic dissipation. The resulting jets evolve into time-dependent, non-axisymmetric configurations, but we find only minor disruption of the jets by for example the kink instability. We find that magnetic dissipation may have profound effects on the jet flow as: 1) it turns on in highly wound up magnetic field regions and helps to prevent critical kink situations; 2) it influences jet dynamics by re-organizing the magnetic field structure and increasing thermal pressure in the jet; and 3) it influences mass loading by increasing temperature and pressure at the base of the jet." @default.
- W1844295786 created "2016-06-24" @default.
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- W1844295786 date "2002-06-22" @default.
- W1844295786 modified "2023-09-27" @default.
- W1844295786 title "Stability and heating of magnetically driven jets from Keplerian accretion discs" @default.
- W1844295786 hasPublicationYear "2002" @default.
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