Runtime Parameters Documentation for FLASH Release 4


physics/sourceTerms/Burn
    useBurn [BOOLEAN] [FALSE]
        shall I burn?

physics/sourceTerms/Burn/BurnMain
    enucDtFactor [REAL] [1.e30]
        Valid Values: Unconstrained
        Limit timestep to limit total energy deposited by burning is kept
        artificially high to effectively turn off limiting by default
    useShockBurn [BOOLEAN] [FALSE]
        Is burning allowed within shocks?

physics/sourceTerms/Burn/BurnMain/nuclearBurn
    algebra [INTEGER] [1]
        Valid Values: 1 to 2
        choice of linear algebra package & 1 = MA28 ;  2 = GIFT
    nuclearDensMax [REAL] [1.0E14]
        Valid Values: 0 to INFTY
        Max burning density
    nuclearDensMin [REAL] [1.0E-10]
        Valid Values: 0 to INFTY
        Min burning density
    nuclearNI56Max [REAL] [1.0]
        Valid Values: 0 to INFTY
        Max Ni56 mass frac. for burning
    nuclearTempMax [REAL] [1.0E12]
        Valid Values: 0 to INFTY
        Max burning temperature
    nuclearTempMin [REAL] [1.1E8]
        Valid Values: 0 to INFTY
        Min burning temperature
    odeStepper [INTEGER] [1]
        Valid Values: 1 to 2
        choice of ode time stepper 1 = Bader-Deuflhard variable order 2 =
        Rosenbrock 4th order
    useBurnTable [BOOLEAN] [FALSE]
        choice of rate evaluation FALSE = analytic rates TRUE = table
        interpolation

physics/sourceTerms/Burn/BurnMain/nuclearBurn/Aprox13t
    bn_rrScale [REAL] [1.0]
        Valid Values: 0.0 to 1.0
        Can be used to decrease the ratdum reaction rates

physics/sourceTerms/Burn/BurnMain/parametricBurn
    threadBurnBlockList [BOOLEAN] [TRUE]


physics/sourceTerms/Burn/BurnMain/parametricBurn/Co2nse
    bn_pbNoreactFlameThreshold [REAL] [1.e-6]
        Valid Values: Unconstrained
        Do not burn in a flame unless the local "flame" value is below this
        threshold. This is only used when/were a special Noreact region is NOT
        being honored; in a special Noreact region (when pbHonorNoreactRegion is
        TRUE), the criteria for suppressing burning are in general different and
        involve temperature as well as the "flame" value. This runtime parameter
        is meaningless when burning is not used or when pbReact is false.
    c_frac [REAL] [0.5]
        Valid Values: Unconstrained

    pbFqdotMult [REAL] [1.e0]
        Valid Values: Unconstrained

    pbHonorNoreactRegion [BOOLEAN] [true]

    pbNseWarnLevel [INTEGER] [1]
        Valid Values: Unconstrained

    pbReact [BOOLEAN] [true]

    pbUseConstComposition [BOOLEAN] [true]


physics/sourceTerms/Burn/BurnNSE
    pbDensTableName [STRING] ["nse_dens_emq_table.txt"]
        Valid Values: Unconstrained
        Name of the lookup table for final NSE state for isochoric burn
    pbPresTableName [STRING] ["nse_pres_hmq_table.txt"]
        Valid Values: Unconstrained
        Name of the lookup table for final NSE state for isobaric burn