A One-dimensional Model for Rayleigh–taylor Instability in Supernova Remnants
Apr 9, 201512 pages
Published in:
- Astrophys.J. 821 (2016) 2, 76
- Published: Apr 12, 2016
e-Print:
- 1504.02200 [astro-ph.HE]
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Abstract: (IOP)
This study presents a method for approximating the multidimensional effects of Rayleigh–Taylor (RT) instability as a modification of the one-dimensional (1D) hydro equations. This modification is similar to the Shakura–Sunyaev α prescription for modeling the coarse-grained effects of turbulence in astrophysical disks. The model introduces several dimensionless tunable parameters that are calibrated by comparing with high-resolution two-dimensional axisymmetric numerical calculations of RT unstable flows. A complete description of the model is presented, along with a handful of test problems that demonstrate the extent to which the 1D model is able to reproduce multidimensional effects.Note:
- ApJ Accepted
- hydrodynamics
- instabilities
- ISM: jets and outflows
- ISM: supernova remnants
- shock waves
- turbulence
References(70)
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