The viscously spreading Ring

• Description

  A Study concerning the Evolution of a Ring of Matter with zero pressure (Dust) under the influence of Viscosity.
  Using two different numerical approaches (Particle - Grid) and an analytical investigation.
  

  An older, brief description of the setup of the model is given already HERE.

• Standard Model

  Initial density: Sigma (tau = 0.016) (viscous times)
  Kinematic Viscosity: 4.77e-5 (dimensionless units)
  Computational Domain: Rmin=0.2, Rmax=1.8
  Resolution: 128 x 128 (equidistant)
  

• Results

  Grid-Code: RH2D, Monotonic Transport (incl. Movies)
  
  

• Publication

  Related Publication in A&A, see Here
  

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Last modified: Dec. 11th, 2002