Flash Center for Computational Science


physics/Hydro/HydroMain
    UnitSystem [STRING] ["none"]
        Valid Values: Unconstrained
        System of Units
    cfl [REAL] [0.8]
        Valid Values: Unconstrained
        Courant factor
    irenorm [INTEGER] [0]
        Valid Values: Unconstrained
        Renormalize the abundances before eos
    use_cma_advection [BOOLEAN] [FALSE]

    use_cma_flattening [BOOLEAN] [FALSE]
        use the flattening procedure for the abundances as described in the CMA
        paper
    use_cma_steepening [BOOLEAN] [FALSE]

    use_steepening [BOOLEAN] [TRUE]


physics/Hydro/HydroMain/split/MHD_8Wave
    irenorm [INTEGER] [0]
        Valid Values: Unconstrained

    killdivb [BOOLEAN] [TRUE]

    small [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value
    smalle [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for energy
    smallp [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for pressure
    smallt [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for temperature
    smallu [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for velocity
    smallx [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for abundances
    smlrho [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for density

physics/Hydro/HydroMain/split/PPM
    cvisc [REAL] [0.1]
        Valid Values: Unconstrained
        Artificial viscosity constant
    dp_sh [REAL] [0.33]
        Valid Values: Unconstrained

    dp_sh_md [REAL] [0.33]
        Valid Values: Unconstrained
        pressure jump for multi-dimensional shock detection
    epsiln [REAL] [0.33]
        Valid Values: Unconstrained
        PPM shock detection parameter
    hy_fluxRepresentation [STRING] ["fluxes"]
        Valid Values: "hybrid", "fluxes", "auto"
        determines the nature of the data stored in flux arrays. With this
        parameter set to "fluxes", the fluxes and cell volumes used in the Hydro
        method are calculated correctly using geometry measures (in units
        matching those in which coordinates are represented). If
        hy_fluxRepresentation is "hybrid", fluxes are calculated in a simpler
        way; for example, the fluxes in Cartesian coordinates use the convention
        Face Area == 1 (and thus Cell Volume == dx during the X sweep, etc.).
        Both settings lead to a correct algorithm, because what is ultimately
        applied in the Hydro update is of the form fluxes times dt/CellVolume,
        so cell areas (thus fluxes) and volumes can be multiplied by an
        arbitrary constant (as long as it is done consistently) without changing
        results (except for rounding effects). The setting here must match
        Paramesh's understanding of what the "fluxes" are that it is being
        passed if Grid_conserveFluxes is called: If hy_fluxRepresentation is
        "fluxes", then Paramesh4 should have set consv_fluxes==.true., 
        consv_flux_densities==.false. If hy_fluxRepresentation is "hybrid", then
        Paramesh4 should have set consv_fluxes==.false.,
        consv_flux_densities==.true. Hydro_init will try to set Paramesh to the
        right mode if possible, this requires Paramesh to be compiled in LIBRARY
        mode. If this fails, the flux representation will be modified to
        correspond to what the Grid unit supports. A third possible value for
        hy_fluxRepresentation is "auto", in which case the Hydro code unit will
        pick either "fluxes" or "hybrid" based on geometry and support in Grid.
    hybrid_riemann [BOOLEAN] [FALSE]
        use HLLE in shocks to remove odd-even decoupling
    igodu [INTEGER] [0]
        Valid Values: Unconstrained
        Use Godunov method
    iplm [INTEGER] [0]
        Valid Values: Unconstrained
        Use linear profiles
    leveque [BOOLEAN] [FALSE]
        modify states due to gravity -- leveque's way.
    nriem [INTEGER] [10]
        Valid Values: Unconstrained
        No. of iterations in Riemann solver
    omg1 [REAL] [0.75]
        Valid Values: Unconstrained
        PPM dissipation parameter omega1
    omg2 [REAL] [10.]
        Valid Values: Unconstrained
        PPM dissipation parameter omega2
    ppm_modifystates [BOOLEAN] [FALSE]
        modify states due to gravity -- our way.
    rieman_tol [REAL] [1.0e-5]
        Valid Values: Unconstrained
        Converge factor for Riemann solver
    small [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value ... DEV: for what?
    smalle [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for energy
    smallp [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for pressure
    smallt [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for temperature
    smallu [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for velocity
    smallx [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for abundances
    smlrho [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for density
    vgrid [REAL] [0.]
        Valid Values: Unconstrained
        Scale factor for grid velocity

physics/Hydro/HydroMain/split/RHD
    reconType [INTEGER] [2]
        Valid Values: Unconstrained
        Order of reconstruction
    small [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value
    smalle [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for energy
    smallp [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for pressure
    smallt [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for temperature
    smallu [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for velocity
    smallx [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for abundances
    smlrho [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for density

physics/Hydro/HydroMain/unsplit/Hydro_MusclHancock
    LimitedSlopeBeta [REAL] [1.0]
        Valid Values: Unconstrained
        Any real value specific for the Limited Slope limiter
    RiemannSolver [STRING] ["Roe"]
        Valid Values: Unconstrained
        Roe, HLL, HLLC or LaxFriedrichs
    charLimiting [BOOLEAN] [TRUE]
        Apply limiting for characteristic variable
    entropy [BOOLEAN] [FALSE]
        Entropy Fix routine for the Roe Riemann solver
    entropyFixMethod [STRING] ["HARTENHYMAN"]
        Valid Values: Unconstrained
        Entropy fix method for the Roe Riemann solver: Harten or HartenHyman
    fullyLimit [BOOLEAN] [FALSE]
        Switch to use a full limiting on transverse flux differencing
    irenorm [INTEGER] [0]
        Valid Values: Unconstrained
        Renormalize abundances
    order [INTEGER] [2]
        Valid Values: Unconstrained
        1st order Godunov scheme/2nd order MUSCL-Hancock scheme
    shockDetect [BOOLEAN] [FALSE]
        Switch to use a strong compressive shock detection
    shockInstabilityFix [BOOLEAN] [FALSE]
        Fix for Roe solver's carbuncle instabilty
    slopeLimiter [STRING] ["vanLeer"]
        Valid Values: Unconstrained
        mc, vanLeer, minmod, hybrid, limited
    small [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value
    smalle [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for energy
    smallp [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for pressure
    smallt [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for temperature
    smallu [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for velocity
    smallx [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for abundances
    smlrho [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for density
    tiny [REAL] [1.e-16]
        Valid Values: Unconstrained
        A threshold value for an arbitrarily small number

physics/Hydro/HydroMain/unsplit/MHD_StaggeredMesh
    E_modification [BOOLEAN] [TRUE]
        Switch for modified electric fields calculation from flux
    ForceHydroLimit [BOOLEAN] [FALSE]
        Switch to force B=0 limit, i.e., the solver will not update B fields
    LimitedSlopeBeta [REAL] [1.0]
        Valid Values: Unconstrained
        Any real value specific for the Limited Slope limiter
    RiemannSolver [STRING] ["Roe"]
        Valid Values: Unconstrained
        Roe, HLL, HLLC, HLLD or LaxFriedrichs
    charLimiting [BOOLEAN] [TRUE]
        Apply limiting for characteristic variable
    energyFix [BOOLEAN] [FALSE]
        Energy fix routine after updating face magnetic fields
    entropy [BOOLEAN] [FALSE]
        Entropy Fix routine for the Roe Riemann solver
    entropyFixMethod [STRING] ["HARTENHYMAN"]
        Valid Values: Unconstrained
        Entropy fix method for the Roe Riemann solver: Harten or HartenHyman
    facevar2ndOrder [BOOLEAN] [TRUE]
        Switch to use 2nd order data reconstruction-evolution of facevars
    fullyLimit [BOOLEAN] [FALSE]
        Switch to use a full limiting on transverse flux differencing
    irenorm [INTEGER] [0]
        Valid Values: Unconstrained
        Renormalize abundances
    killdivb [BOOLEAN] [TRUE]
        Switch for maintaing solenoidal field
    order [INTEGER] [2]
        Valid Values: Unconstrained
        1st order Godunov scheme/2nd order MUSCL-Hancock scheme
    prolMethod [STRING] ["INJECTION_PROL"]
        Valid Values: Unconstrained
        Injection or Balsara's method in prolongation
    shockDetect [BOOLEAN] [FALSE]
        Switch to use a strong compressive shock detection
    shockInstabilityFix [BOOLEAN] [FALSE]
        Switch to enable a fix for carbuncle instability
    slopeLimiter [STRING] ["vanLeer"]
        Valid Values: Unconstrained
        mc, vanLeer, minmod, hybrid, limited
    small [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value
    smalle [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for energy
    smallp [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for pressure
    smallt [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for temperature
    smallu [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for velocity
    smallx [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for abundances
    smlrho [REAL] [1.E-10]
        Valid Values: Unconstrained
        Cutoff value for density
    tiny [REAL] [1.e-16]
        Valid Values: Unconstrained
        A threshold value for an arbitrarily small number
Runtime Parameters Documentation for FLASH Release 3.2
