sunfluidh:sunfluidh_data_setup

### Table des matières

## SUNFLUIDH DATA SETUP

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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 … |

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