FLASH4.6.1 API

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TABLE OF CONTENTS


[Functions] source/physics/Hydro/Hydro_init

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NAME

  Hydro_init

SYNOPSIS

  call Hydro_init()

DESCRIPTION

  Initialize unit scope variables which are typically the runtime parameters.
  This must be called once by Driver_initFlash.F90 first. Calling multiple
  times will not cause any harm but is unnecessary.

ARGUMENTS


PARAMETERS

   These are the runtime parameters used in the split PPM Hydro 
   implementation.

   To see the default parameter values and all the runtime parameters
   specific to your simulation check the "setup_params" file in your
   object directory.
   You might have overwritten these values with the flash.par values
   for your specific run.  

    useHydro [BOOLEAN]
        Should any Hydro calculations be performed?
    updateHydroFluxes [BOOLEAN]
        whether fluxes computed by Hydro should be used to update the solution
    cfl [REAL]
    geometry [STRING]
        Grid geometry
    eosMode [STRING]
        the default Eos mode, usually MODE_DENS_EI, 
        where density and energy are provided to 
        calculate pressure and temperature
    irenorm
    flux_correct [BOOLEAN]
    hybrid_riemann [BOOLEAN]
    smlrho [REAL]
        Cutoff value for density
    smallp [REAL]
        Cutoff value for pressure
    eintSwitch [REAL]  Defined in Eos Unit
    cvisc [REAL]
        Artificial viscosity constant
    dp_sh_md
    epsiln [REAL]
    nriem [INTEGER]
    omg1
        PPM dissipation parameter omega1
    omg2
        PPM dissipation parameter omega2
    rieman_tol [REAL]
    small [REAL]
       Generic small value that can be used as floor where needed
    smallu [REAL]
       Cutoff value for velocity
    smallx [REAL]
       Cutoff value for abundances
    vgrid
    ppm_modifystates
    leveque
    igodu [INTEGER]
       Enable Guodunov method instead of PPM if set to 1
    iplm [INTEGER]
       Enable piecewise linear method instead of PPM if set to 1
    use_steepening [BOOLEAN]
    use_cma_flattening [BOOLEAN]
    use_cma_advection [BOOLEAN]