Changes between Version 30 and Version 31 of PhysicsDataExplained


Ignore:
Timestamp:
06/29/11 14:13:39 (14 years ago)
Author:
Brandon Shroyer
Comment:

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  • PhysicsDataExplained

    v30 v31  
    7878Tracer variables are used to track the movement of specific quantities of matter within your simulation.  If, for instance, you had one or more clumps suspended in an ambient medium and wanted to track the way the clump matter moves through the domain, you would use a tracer.
    7979
    80  * '''''{{{iLTracer:}}}'''''   Controls the behavior of tracer fields.
    81   * {{{0 -- Conservative:}}} Tracer values in a given cell are constrained from 0 to {{{density}}}.  If you do not intend to use tracers, then select this option.
    82   * {{{1 -- Limited Lagrangian:}}}  Tracer values are constrained between 0 and 1
    83  These settings apply to ''all'' tracer fields--AstroBEAR does not allow users to mix conservative and Lagrangian tracers in one problem.
    84 
    8580 * '''''{{{NrTracerVars:}}}'''''  Indicates the number of tracer variables to use in this problem.  If {{{NrTracerVars}}} is {{{0}}}, then tracers will not be active.  Tracking tracer variables costs memory and CPU cycles, so it's best to leave this switched off if you don't anticipate needing them.  Under no circumstances should {{{NrTracerVars}}} be less than 0.
    8681[[BR]]