- wall_ff_closurechurchillFriction factor closure
Default:churchill
C++ Type:MooseEnum
Unit:(no unit assumed)
Controllable:No
Description:Friction factor closure
- wall_htc_closuredittus_boelterHeat transfer coefficient closure
Default:dittus_boelter
C++ Type:MooseEnum
Unit:(no unit assumed)
Controllable:No
Description:Heat transfer coefficient closure
Closures1PhaseTHM
Closures for 1-phase flow channels
The closures added are:
a wall friction factor for the pressure drop,
a wall heat transfer coefficient for heat transfer.
The user can choose between a range of correlations for the heat transfer coefficient and friction factor that covers pipes to rod-bundles. The available correlations for the heat transfer coefficient are listed in Table 1.
Table 1: Available correlations for the heat transfer coefficient.
Name | Coolant | Geometry | Reference |
---|---|---|---|
Dittus-Boelter | Liquid/Gases | Pipes | ADWallHeatTransferCoefficient3EqnDittusBoelterMaterial |
Gnielinski | Liquid/Gases | Pipes | ADWallHeatTransferCoefficientGnielinskiMaterial |
Wolf-McCarthy | Gases | Pipes | ADWallHeatTransferCoefficientWolfMcCarthyMaterial |
Lyon | Liquid Sodium | Pipes | ADWallHeatTransferCoefficientLyonMaterial |
Weisman | Water | Rod-bundles | ADWallHeatTransferCoefficientWeismanMaterial |
Kazimi-Carelli | Liquid Sodium | Rod-bundles | ADWallHeatTransferCoefficientKazimiMaterial |
Mikityuk | Liquid Sodium | Rod-bundles | ADWallHeatTransferCoefficientMikityukMaterial |
Schad | Liquid Sodium | Rod-bundles | ADWallHeatTransferCoefficientSchadMaterial |
The available correlations for the friction factor are listed in Table 2.
Table 2: Available correlations for the friction factor.
Name | Geometry | Reference |
---|---|---|
Churchill | Pipes | ADWallFrictionChurchillMaterial |
Cheng-Todreas | Rod-bundles | ADWallFrictionChengMaterial |
The user can also define the friction factor directly in the component block, overwriting the value given by the Closures1PhaseTHM, for example:
In this case, the friction factor for the Pipe_1
component will be equal to the value defined in the parameter f
, while for Pipe_2
the friction factor will given by the correlation chosen in the Closures1PhaseTHM.
Additionally, this object defines:
a wall temperature material, to be able to retrieve the wall temperature as a material property for each heat transfer.
Input Parameters
- control_tagsAdds user-defined labels for accessing object parameters via control logic.
C++ Type:std::vector<std::string>
Unit:(no unit assumed)
Controllable:No
Description:Adds user-defined labels for accessing object parameters via control logic.
- enableTrueSet the enabled status of the MooseObject.
Default:True
C++ Type:bool
Unit:(no unit assumed)
Controllable:No
Description:Set the enabled status of the MooseObject.