Outils pour utilisateurs

Outils du site


sunfluidh:sunfluidh_data_setup

SUNFLUIDH DATA SETUP

Click here to come back to the previous page


The file input3d.dat is the main data file to prescribe input values to sunfluidh. It contains the major part of data : geometric layout, flow features, boundary conditions, simulation management … Each part of the file is structured by means of the NAMELIST concept (click here for more details).

Content of the data file

Herein the user finds the content of the data file before addressing in details each namelist of the data set:

  • The fluid properties
    • Physical properties of the fluid (incompressible fluids, low Mach number hypothesis, multi-components gas, two-phase flows, reactive flow)
    • The reference values of the main physical quantities.
  • Field initialization
    • Velocity
    • Temperature
    • Species mass fraction
    • Two-fluids interface (density distribution with discontinuity)
  • Forces applied to the fluid
    • Gravity and buoyancy force
    • Sustaining force, etc …
  • Domain configuration
    • geometry of the domain
    • Immersed bodies characteristics (in order to build complex geometries)
    • domain decomposition methods (for parallel computing)
    • mesh characteristics
    • boundary conditions
  • Simulation management
    • Numerical methods for solving equations
    • Numerical time step
    • time range of simulation
    • Stopping criteria
    • Backup files, checking files
    • recording rates of data acquisitions
  • Data acquisition
    • Time-series
    • Instantaneous fields
    • Statistics

Namelist lookup list

Click on the highlighted namelist to get more details about it (type of data, definition of data,…)

Fluid Properties
Fluid_Properties General properties of the fluid.
Species_Properties Specific properties of components of the fluid (multi-component flows).
Chemical_Reactions_Features Group of data on the chemical reaction features (reactive flows only).
Initialization of the velocity, temperature and density over the domain
Velocity_Initialization Data for the velocity field initialization.
Temperature_Initialization Data for the temperature field initialization.
Species_Initialization Data for the species mass fraction initialization.
Two_Fluids_Initialization Data for the density field initialization in the special case of immiscible fluids.
Forces applied to the fluid
Gravity Data to define the direction and the magnitude of the gravity.
External_Force To define a bulk force on the flow.
Domain configuration (geometries, domain decomposition (if MPI parallelization) & boundary conditions
Domain_Features Data on the geometry, the size of the domain and the mesh size as well as the domain decomposition layout (for parallel simulations only).
Polyhedral_Immersed_Bodies Data setup for building every polyhedral solid objects.
Cylindrical_Immersed_Bodies Data setup for building every cylindrical solid objects.
Heat_Wall_Boundary_Condition_Setup Data setup on the wall boundary conditions for the heat flux.
Velocity_Wall_Boundary_Condition_Setup Data setup on the wall boundary conditions for the velocity.
Species_Wall_Boundary_Condition_Setup Data setup on the wall boundary conditions for the mass flux of species.
Inlet_Boundary_Conditions Data setup used to define inflow boundary conditions.
Outlet_Boundary_Conditions Data setup used to define outflow boundary conditions.
Border_Domain_Boundary_Conditions Data setup used to define boundary conditions at the ends of the domain.
Large Eddy Simulation models
SGS_Model Data related to Large Eddy Simulation models that are available.
Wall and Gas Radiation modeling
Radiative_Heat_Transfer_DOM Data related to the Discrete Ordinates Method and SLW gas model.
Simulation management (choice of numerical methods, time parameters of simulation, recording rates of data, etc)
Numerical_Methods (old version) Data setup used to select the numerical methods used for solving the discretized equations.
Numerical_Methods (new version) Data setup used to select the numerical methods used for solving the discretized equations.
HomeData_PoissonSolver Data for solving Poisson's equation with the “homemade” iterative methods (coupled with the namelist Numerical_Methods (new version)).
HypreData_PoissonSolver Data for solving Poisson's equation with the HYPRE library tools (coupled with the namelist Numerical_Methods (new version)).
Level_Set_Method Data setup for the level set method (immiscible fluids).
Simulation_Management Data setup used to set the time parameters of the simulation (related to the computation and the data acquisition).
Data acquisition
Probe_Quantities_Enabled Define physical quantities that will be recorded by probes during the simulation to build time series.
Probe_Location Coordinates of probes used to record time series of physical quantities.
Instantaneous_Fields_Listing List of physical quantities whose instantaneous fields will be recorded.
Statistical_Fields_Listing List of statistical fields to record.
Slices_Recording_Setup List of slices on which data fields are recorded.
SpaceAveragedSnapshots_Dataset List of space-averaged fields along a specific direction.
Field_Recording_Setup Regroup some parameters about data acquisition such as the precision (single or double) on the result fields, etc …

Click here to go up

Click here to come back to the previous page

sunfluidh/sunfluidh_data_setup.txt · Dernière modification: 2019/12/25 14:35 de yann