Changes between Version 9 and Version 10 of AccretionDiskTutorial


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Timestamp:
08/25/12 16:00:10 (12 years ago)
Author:
idilernia
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  • AccretionDiskTutorial

    v9 v10  
    1515'''Warning: ''' It is good practice to delete ''profile.data'' from the problem folder before executing AstroBEAR for the first time, failure to do so will likely result in execution errors.
    1616
    17 === Getting familiar with t
     17=== Getting familiar with the module ===
     18
     19After checking that the disk module compiles and runs without any issues, you can examine the chombo files created by the first run of this module.[[BR]][[BR]]
     20If you have no experience on visualization tools, the page [https://clover.pas.rochester.edu/trac/astrobear/wiki/VisItBasics VisIt Basics] is a good resource to learn the basics of it.[[BR]][[BR]]
     21The following image is a density plot of the disk at time ''t=0'', a log scale has been applied to the perpendicular and parallel slices.
     22
     23[[Image(famil.png, 1100px)]]
     24
     25Different elements can be recognized in the image above:
     26- GxBounds: the boundaries of the plot, namely the physical boundaries of the simulation
     27- Radius: the radius of the disk
     28- Height: the height of the disk
     29- Ambient: the blue portion of the plot, it represents the area around the disk
     30- PointGravity: a point mass located at the center of the disk
     31
    1832
    1933=== Initial Conditions ===
    2034
    21 After checking that the disk module compiles and runs without any issues, you can proceed to examine '''problem.data''' contained in the '''BasicDisk''' folder.
     35Now you can proceed to examine ''problem.data'' contained in the '''BasicDisk''' folder.
    2236The default problem.data file contains an array of field that can be changed depending on the user's needs, let's analyze some of them
    2337
     
    3044|| mass=.6d-1         ||central particle mass||
    3145
    32 '''Note:''' No scaling is applied to the values above
     46Sometimes it can be useful to change the size of the physical boundaries of the simulation, this can be done by modifying the section below contained in ''global.data''
     47{{{
     48GxBounds          = -10.d0,         ! Problem boundaries in computational units.
     49                    -10.d0,         ! format: (xlower, ylower, zlower, xupper, yupper, zupper)
     50                    -10.d0,         ! For 2D problems, set zlower and zupper to 0.d0.
     51                     10.d0,
     52                     10.d0,
     53                     10.d0
     54}}}
    3355
    3456=== Scales ===