Runtime Parameters Documentation for FLASH Release 4


physics/materialProperties/MassDiffusivity
    useMassDiffusivity [BOOLEAN] CONSTANT [FALSE]
        -- allows the mass diffusivity to be turned off at runtime, even if the
        unit is included in the simulation

physics/materialProperties/MassDiffusivity/MassDiffusivityMain
    useMassDiffusivity [BOOLEAN] [TRUE]
        flags whether the mass diffusivity material property is being used

physics/materialProperties/MassDiffusivity/MassDiffusivityMain/Constant
    diff_spec_D [REAL] [1.0]
        Valid Values: Unconstrained