Runtime Parameters Documentation for FLASH Release 4.2.2

physics/materialProperties/Opacity
    useOpacity [BOOLEAN] CONSTANT [FALSE]
        flags whether the Opacity unit is being used at all

physics/materialProperties/Opacity/OpacityMain
    useOpacity [BOOLEAN] [TRUE]
        flags whether the Opacity unit is being used at all

physics/materialProperties/Opacity/OpacityMain/Constant
    op_absorbConst [REAL] [1.0]
        Valid Values: Unconstrained

    op_emitConst [REAL] [1.0]
        Valid Values: Unconstrained

    op_transConst [REAL] [1.0]
        Valid Values: Unconstrained


physics/materialProperties/Opacity/OpacityMain/Multispecies
    opacity_ignoreLowTemp [BOOLEAN] [TRUE]

    opacity_writeOpacityInfo [BOOLEAN] [FALSE]


physics/materialProperties/Opacity/OpacityMain/Multispecies/method/Integrate
    opacity_RombergAccuracy [REAL] [1.E-6]
        Valid Values: Unconstrained

    opacity_maxQuadratureRoots [INTEGER] [50]
        Valid Values: Unconstrained

    opacity_printQuadratureData [BOOLEAN] [TRUE]

    opacity_useQuadrature [BOOLEAN] [FALSE]

    opacity_useRomberg [BOOLEAN] [TRUE]


physics/materialProperties/Opacity/OpacityMain/Multispecies/method/LowTemp
    opacity_ignoreKleinNishina [BOOLEAN] [FALSE]


physics/materialProperties/Opacity/OpacityMain/Multispecies/method/Tabulated
    op_tableEnergyTolerance [REAL] [1.0e-04]
        Valid Values: Unconstrained
        allowed difference between table/FLASH group structure
    opacity_useLogTables [BOOLEAN] [TRUE]