Changes between Version 54 and Version 55 of u/BonnorEbertMatched


Ignore:
Timestamp:
06/22/12 16:35:24 (12 years ago)
Author:
Erica Kaminski
Comment:

Legend:

Unmodified
Added
Removed
Modified
  • u/BonnorEbertMatched

    v54 v55  
    3737
    3838The same wave of inward moving material is seen in each of these plots, except that the sphere in the lighter medium is more resilient to allowing the wave to pass through the boundary, whereas in the matched case there seems to be no boundary and the wave passes freely through Rbe. Thus it seems that in the light ambient case, while there is inward moving material, there is little momentum being imparted to the sphere's boundary and so, the velocity of the material inside doesn't acquire the general shape of the velocity curve outside of the sphere. The inward moving material in the matched case must have a greater momentum, allowing the flow of energy to enter into the sphere resulting in a continuous wave across the boundary.
     39
     40Here is a movie of the radial velocity vs. radius of the BE sphere under matched conditions:
     41
     42:[[Image(vradLineOutMatched1.gif, 37%)]]
    3943
    4044A comparison between the B&P(2004) setup I just ran and the matched condition for radial velocity is [CompareOldandNew here]. The sphere parameters are the same, except that in the B&P setup, collapse was induced by a 10% over density of the grid. Additionally one can make the comparison between the light ambient case and the B&P setup, as there the comparison would be 10% over density of the grid vs. no density enhancement, follow link [OldandLight here]