MetaData: run_name: cosmo_RT_advection-2D # Define the system of units to use internally. InternalUnitSystem: UnitMass_in_cgs: 1.98841586e+33 # 1 M_Sol UnitLength_in_cgs: 3.08567758e21 # Mpc in cm UnitVelocity_in_cgs: 1.e5 # km/s UnitCurrent_in_cgs: 1. UnitTemp_in_cgs: 1. # K # Parameters governing the time integration TimeIntegration: max_nr_rt_subcycles: 1 dt_min: 1.e-17 # The minimal time-step size of the simulation (in internal units). dt_max: 1.e-2 # The maximal time-step size of the simulation (in internal units). # Parameters governing the snapshots Snapshots: basename: output_low_redshift # Common part of the name of output files output_list_on: 1 output_list: snapshot_times_low_redshift scale_factor_first: 0.93 # Time of the first output (in internal units) delta_time: 1.005 # Parameters governing the conserved quantities statistics Statistics: scale_factor_first: 0.93 delta_time: 1.005 # Time between statistics output # Parameters for the hydrodynamics scheme SPH: resolution_eta: 1.2348 # Target smoothing length in units of the mean inter-particle separation (1.2348 == 48Ngbs with the cubic spline kernel). CFL_condition: 0.6 # Courant-Friedrich-Levy condition for time integration. minimal_temperature: 10. # Kelvin # Parameters related to the initial conditions InitialConditions: file_name: ./advection_2D.hdf5 # The file to read periodic: 1 # periodic ICs Restarts: delta_hours: 72 # (Optional) decimal hours between dumps of restart files. GEARRT: f_reduce_c: 1. # reduce the speed of light for the RT solver by multiplying c with this factor f_limit_cooling_time: 0.0 # (Optional) multiply the cooling time by this factor when estimating maximal next time step. Set to 0.0 to turn computation of cooling time off. CFL_condition: 0.99 # CFL condition for RT, independent of hydro photon_groups_Hz: [1., 2., 3., 4.] # Lower photon frequency group bin edges in Hz. Needs to have exactly N elements, where N is the configured number of bins --with-RT=GEAR_N stellar_luminosity_model: const # Which model to use to determine the stellar luminosities. const_stellar_luminosities_LSol: [1e-32, 1e-32, 1e-32, 1e-32] # (Conditional) constant star luminosities for each photon frequency group to use if stellar_luminosity_model:const is set, in units of Solar Luminosity. hydrogen_mass_fraction: 0.76 # total hydrogen (H + H+) mass fraction in the metal-free portion of the gas stellar_spectrum_type: 0 # Which radiation spectrum to use. 0: constant from 0 until some max frequency set by stellar_spectrum_const_max_frequency_Hz. 1: blackbody spectrum. stellar_spectrum_const_max_frequency_Hz: 1.e17 # (Conditional) if stellar_spectrum_type=0, use this maximal frequency for the constant spectrum. set_initial_ionization_mass_fractions: 1 # (Optional) manually overwrite initial mass fraction of each species (using the values you set below) mass_fraction_HI: 0.76 # (Conditional) If overwrite_initial_ionization_fractions=1, needed to set initial HI mass fractions to this value mass_fraction_HII: 0. # (Conditional) If overwrite_initial_ionization_fractions=1, needed to set initial HII mass fractions to this value mass_fraction_HeI: 0.24 # (Conditional) If overwrite_initial_ionization_fractions=1, needed to set initial HeI mass fractions to this value mass_fraction_HeII: 0. # (Conditional) If overwrite_initial_ionization_fractions=1, needed to set initial HeII mass fractions to this value mass_fraction_HeIII: 0. # (Conditional) If overwrite_initial_ionization_fractions=1, needed to set initial HeIII mass fractions to this value skip_thermochemistry: 1 # Skip thermochemsitry. Cosmology: # Planck13 (EAGLE flavour) a_begin: 0.93 a_end: 1. h: 0.6777 Omega_cdm: 0.2587481 Omega_lambda: 0.693 Omega_b: 0.0482519