Changes between Version 3 and Version 4 of SolverDataExplained


Ignore:
Timestamp:
06/28/11 16:08:34 (14 years ago)
Author:
Brandon Shroyer
Comment:

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  • SolverDataExplained

    v3 v4  
    3030
    3131[[BR]]
    32 == !SchemeData ==
     32== !SweepData ==
     33
     34This namelist controls the options associated with the sweep integration scheme.  It will only be used if the {{{iScheme}}} option in {{{SolverData}}} is set to 1.
     35
     36'''NOTE:'''  There are several deprecated options in the {{{SweepData}}} namelist right now.  If you see a particular option in an older data file that isn't discussed here, it is probably deprecated and therefore of no consequence.
     37
     38
     39 * '''''{{{lChar_Limiters}}}''''':  Controls whether characteristic variablers are used instead of primitive variables in certain parts of the sweep scheme.  By default, this is set to {{{.true.}}}
     40 * '''''{{{lCTU}}}''''':  A boolean flag controlling the corner transport upwind method.  This should always be set to {{{.true.}}}
     41 * '''''{{{lCautious}}}''''':  When set to true, AstroBEAR protects hyperbolic quantities when solving.  In general, this should be set to {{{.true.}}}
     42 * '''''{{{lLimiter}}}''''':  Controls the use of [http://en.wikipedia.org/wiki/Flux_limiter slope limiters].  This should always be set to {{{.true.}}}
     43 * '''''{{{InterpOrder}}}''''':  Sets the interpolation order to be used during variable reconstruction.  AstroBEAR has three options for this:
     44  * {{{1 -- Constant Interpolation}}
     45  * {{{2 -- Linear Interpolation}}:  WARNING:  this option is not well-tested.
     46  * {{{3 -- Parabolic Interpolation}}:  This is the default option.
     47
     48 * '''''{{{ViscCD}}}'''''  Controls AstroBEAR's numerical viscosity options.  {{{ViscCD}}} currently has three options:
     49  * {{{0 -- ROE_VISCOSITY}}}:  The default option, this value turns viscosity off.
     50  * {{{1 -- ROE_VISCOSITY}}}:                 ! 0 = NO_VISCOSITY, 1 = ROE_VISCOSITY, 2 = H_VISCOSITY
     51  lApplyLOF = .false.      ! Apply local oscillation filter (reduces carbuncles)
     52  LOF_ALPHA = .075         ! Strength of local oscillation filter.
     53  iTracer = 0              ! 0 = Normal Tracers, 1 = Lagrangian Tracers