- T_ambientAmbient temperature function [K]
C++ Type:FunctionName
Unit:(no unit assumed)
Controllable:No
Description:Ambient temperature function [K]
- boundaryList of boundary names for which this component applies
C++ Type:std::vector<BoundaryName>
Unit:(no unit assumed)
Controllable:No
Description:List of boundary names for which this component applies
- hsHeat structure name
C++ Type:std::string
Unit:(no unit assumed)
Controllable:No
Description:Heat structure name
- htc_ambientAmbient Convective heat transfer coefficient function [W/(m^2-K)]
C++ Type:FunctionName
Unit:(no unit assumed)
Controllable:No
Description:Ambient Convective heat transfer coefficient function [W/(m^2-K)]
HSBoundaryAmbientConvection
This component is a heat structure boundary that applies convective heat transfer boundary conditions.
Usage
The parameter "hs" specifies the name of the heat structure component, and "boundary" is a list of boundary names on the heat structure where the boundary condition is to be applied.
The parameter "T_ambient" gives the ambient temperature , and "htc_ambient" gives the heat transfer coefficient .
The parameter "scale" specifies the name of a functor that can scale the boundary conditions, for example, a functor material property created with FinEnhancementFactorFunctorMaterial for heat transfer enhancement due to fins.
Input Parameters
- scale1Functor by which to scale the boundary condition. A functor is any of the following: a variable, a functor material property, a function, a post-processor, or a number.
Default:1
C++ Type:MooseFunctorName
Unit:(no unit assumed)
Controllable:No
Description:Functor by which to scale the boundary condition. A functor is any of the following: a variable, a functor material property, a function, a post-processor, or a number.
- scale_heat_rate_ppTrueIf true, the 'scale' parameter is also applied to the heat rate post-processor.
Default:True
C++ Type:bool
Unit:(no unit assumed)
Controllable:No
Description:If true, the 'scale' parameter is also applied to the heat rate post-processor.
Optional 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.
If this component is used with a cylindrical heat structure, the post-processor name_integral
is added, which gives the heat rate found by integrating this heat flux over the boundary.
Advanced Parameters
Formulation
The heat conduction equation is the following: where
is density,
is specific heat capacity,
is thermal conductivity,
is temperature, and
is a volumetric heat source.
Multiplying by a test function and integrating by parts over the domain gives where is the boundary of the domain .
For Neumann boundary conditions on the boundary , is replaced with a known incoming heat flux function :
For convection boundary conditions, the incoming boundary heat flux is computed as
where
is the heat transfer coefficient,
is the temperature of the surface,
is the ambient temperature, and
is an optional scaling factor.