Changes between Version 2 and Version 3 of u/EricasLibrary

Timestamp:

07/27/11 14:25:56 (14 years ago)

Author:

Erica Kaminski

Comment:

—

u/EricasLibrary

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-== Truelove, Klein, Mc Kee, et al. (‘98).  [http://iopscience.iop.org/0004-637X/495/2/821/pdf/36882.pdf ''Self-Gravitational hydrodynamics with 3d AMR: methodolgy and applications to molecular cloud collapse and fragmentation.''] ==
+== Truelove, Klein, Mc Kee, et al. (‘98).  [http://iopscience.iop.org/0004-637X/495/2/821/pdf/36882.pdf Self-Gravitational hydrodynamics with 3d AMR: methodolgy and applications to molecular cloud collapse and fragmentation.] ==
 
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 Develops methods for AMR, dynamic grids that allot finer resolution over many length scales that is imperative for studying problems of gravitational collapse. The criteria for refinement is crucial, and their’s is the jeans length. This sets the resolution smaller than the local Jean’s length, allowing new benchmarks in the probing of the dynamics. They find uniformly rotating spherical clouds to collapse along the equatorial plane. When perturbed, these form ‘filamentary singularties’ that don’t fragment when isothermal.
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 This paper goes through in extensive detail on the 3 components of their code methodology: the hyperbolic solvers that employ the Gudonov method for solution of the hydro equations,  elliptic solvers that utilize AMR multigrid method to solve Poisson’s equation, and finally these two methods operation within an AMR framework. The use of stencils as different layers of cell-centered quantities used for averaging the node centered quantities (for self - gravity) is detailed. Paper refers to Almgren for discussion on AMR multigrid cycle procedures. 
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 http://adsabs.harvard.edu/abs/1997ApJ...489L.179T
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