Dynamical Barmode Instability
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Simulation Technique
-
Governing Equations for CFD Simulations
- Explicit Time-Integration
- Finite-Difference Scheme
- Uniform, Cylindrical Lattice
(no AMR)
[ Cazes' work (128,256,128) in (R,q,Z) ]
[ Shangli Ou's work (256,256,162) in (R,q,Z) ]
- Rotating Frame
- van Leer Advection
[ a la
ZEUS-2D ]
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Initial Equilibrium Configurations
- HSCF technique
- Differentially rotating, axisymmetric, n=3/2 polytrope
- n'= 0
- Uniform vortensity (ratio
of vorticity to surface density)
- T/|W| = 0.28
- Perturbation: Random or barlike
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Simulation Results
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Title Page
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