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- W1567150236 abstract "Higher order numerical algorithms (4th order in time, 3rd order in space) are applied to the Euler/Energy equations and are used to examine vorticity transport and wave motion in a non-self gravitating, initially isentropic Keplerian disk. In this talk we will examine the response of the nebula to an isolated vortex with a circulation about equal to the rotation rate of Jupiter. The vortex is located on the 4 AU circle and the nebula is simulated from 1 to 24 AU. We show that the vortex emits pressure-supported density and Rossby-type wave packets before it decays within a few orbits. The acoustic density waves evolve into weak (non entropy preserving) shock waves that propagate over the entire disk. The Rossby waves remain in the vicinity of the initial vortex disturbance, but are rapidly damped. Temporal frequencies and spatial wavenumbers are derived using the simulation data and compared with analytical dispersion relations from the linearized Euler/Energy equations." @default.
- W1567150236 created "2016-06-24" @default.
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- W1567150236 date "2001-01-01" @default.
- W1567150236 modified "2023-10-16" @default.
- W1567150236 title "Vorticity Transport and Wave Emission in the Protoplanetary Nebula" @default.
- W1567150236 hasPublicationYear "2001" @default.
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