sunfluidh:simulation_management_setup_namelist
Différences
Ci-dessous, les différences entre deux révisions de la page.
Les deux révisions précédentesRévision précédenteProchaine révision | Révision précédenteProchaine révisionLes deux révisions suivantes | ||
sunfluidh:simulation_management_setup_namelist [2019/10/31 17:27] – yann | sunfluidh:simulation_management_setup_namelist [2019/11/13 15:40] – [- For snapshot files :] yann | ||
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- | Fields_Recording_Rate | + | InstantaneousFields_TimeRecordingRate= 1.0D+00 , |
- | Probe_Recording_Rate | + | InstantaneousFields_RecordingStartTime= 0.0 , |
+ | | ||
+ | | ||
| | ||
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**Steady_Flow_Stopping_Criterion_Enabled** | **Steady_Flow_Stopping_Criterion_Enabled** | ||
- | * Type : Boolean value | + | * Type : Boolean value. |
* Activation of the stopping criterion for steady flow (based on the L2-norm of the time variation of physical quantities). | * Activation of the stopping criterion for steady flow (based on the L2-norm of the time variation of physical quantities). | ||
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* Type : Real value | * Type : Real value | ||
* This value is the physical time limit reached by the simulation before stopping. | * This value is the physical time limit reached by the simulation before stopping. | ||
+ | |||
+ | < | ||
+ | The simulation stops as soon as one of these conditions is achieved. | ||
+ | </ | ||
---- | ---- | ||
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* Type : Real value. This variable can be omitted when the time step is constant. | * Type : Real value. This variable can be omitted when the time step is constant. | ||
* Minimum value of the CFL parameter (can be omitted, in this case **CFL_Max** will define the CFL value). | * Minimum value of the CFL parameter (can be omitted, in this case **CFL_Max** will define the CFL value). | ||
- | ==== CFL_max | + | **CFL_max** |
* Type : Real value | * Type : Real value | ||
* Maximum value of the CFL parameter. This variable set the value of the CFL parameter when it is constant (in this case, **CFL_Min** is useless). | * Maximum value of the CFL parameter. This variable set the value of the CFL parameter when it is constant (in this case, **CFL_Min** is useless). | ||
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* Type : Integer value | * Type : Integer value | ||
* Number of time iterations over which the CFL parameter or the time step can evolve linearly. When the time step or the CFL parameter are constant, this variable must not set to a value greater than 1. It could actually be omitted (this default value is 1). | * Number of time iterations over which the CFL parameter or the time step can evolve linearly. When the time step or the CFL parameter are constant, this variable must not set to a value greater than 1. It could actually be omitted (this default value is 1). | ||
+ | |||
+ | < | ||
+ | For a dynamic computation of the time step from a CFL condition, you can only set the variable **CFL_Max** if you want a constant CFL value and **CFL_Min** can be omitted.\\ | ||
+ | In any way, the maximum value the time step can reached is limited by the value of **Timestep_max** (useful when the initial condition is defined from a zero velocity field for which the time step cannot be computed from the CFL condition). | ||
+ | </ | ||
+ | |||
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==== Recording rates for different kind of files ==== | ==== Recording rates for different kind of files ==== | ||
---- | ---- | ||
- | === For backup/ | + | |
+ | ==== - For backup/ | ||
**Simulation_Backup_Rate** | **Simulation_Backup_Rate** | ||
* Type : Integer value | * Type : Integer value | ||
- | * This variable defines the recording rate, __in time iteration | + | * This variable defines the recording rate, __in time iteration |
- | === For snapshot files === | + | ==== - For snapshot files : ==== |
- | **Field_Recording_Rate** | + | **InstantaneousFields_RecordingStartTime** |
* Type : Real value | * Type : Real value | ||
- | * This variable | + | * This variable |
- | === For statistics files === | + | **InstantaneousFields_TimeRecordingRate** |
+ | * Type : Real value | ||
+ | * This variable defines the recording rate, __in time unit__ , of instantaneous fields. For instance, when " | ||
+ | |||
+ | **InstantaneousFields_StartTimeIterationRecording** | ||
+ | * Type : Integer value | ||
+ | * This variable sets the time-iteration threshold from which the record of instantaneous fields begins. It must be used along with the next variable " | ||
+ | |||
+ | **InstantaneousFields_TimeIterationRecordingRate** | ||
+ | * Type : Integer value | ||
+ | * This variable defines the recording rate, __in time-iteration units__ , of instantaneous fields. For instance, when " | ||
+ | |||
+ | **InstantaneousFields_RecordingReset** | ||
+ | * Type : Boolean value. The default value is .false. | ||
+ | * When this variable is set to " | ||
+ | |||
+ | |||
+ | < | ||
+ | Keep in mind : | ||
+ | * Instantaneous field files are named res_xxxxxxx_yyyyy.d. T | ||
+ | * The number ' | ||
+ | | ||
+ | * The instantaneous fields of the physical quantities written in each file are defined with the namelist " | ||
+ | </ | ||
+ | |||
+ | <WRAP important> | ||
+ | This set of variables must be used in respect of one rule : the user wants to define the recording rate of files either in time unit or in number of time steps (time-ieration unit). In any case, the correct couple of variables must be used. | ||
+ | * " | ||
+ | * " | ||
+ | |||
+ | </ | ||
+ | |||
+ | ==== - For statistics files : ==== | ||
**Start_Time_For_Statistics** | **Start_Time_For_Statistics** | ||
* Type : Real value | * Type : Real value | ||
* Time from which the statistical fields are calculated. | * Time from which the statistical fields are calculated. | ||
- | **Time_Range_Statistic_Calculation** | + | **Time_Range_Statistic_Calculation** |
* Type : Real value | * Type : Real value | ||
* Time range over which statistical fields are calculated. When this time range has been covered, statistical fields are recorded in a file named rst_xxxxxxx_yyyyy.d (' | * Time range over which statistical fields are calculated. When this time range has been covered, statistical fields are recorded in a file named rst_xxxxxxx_yyyyy.d (' | ||
- | ==== For probe time-series files ==== | + | ==== - For probe time-series files : ==== |
- | **Probe_Recording_Rate** | + | **Probe_TimeIterationRecordingRate** |
* Type : Integer value | * Type : Integer value | ||
- | * This variable defines the recording rate, __in time iteration | + | * This variable defines the recording rate, __in time iteration |
+ | |||
+ | **Probe_TimeIterationRecordingRate** | ||
+ | * Type : Integer value | ||
+ | * This variable defines the threshold from which the probe time-series start (in time iteration | ||
+ | |||
+ | **Probe_RecordingReset** | ||
+ | * Type : Boolean value. The default value is .false. | ||
+ | * When this variable is set to " |
sunfluidh/simulation_management_setup_namelist.txt · Dernière modification : 2022/01/10 10:34 de yann