25.57 RadiationToAmbient object

The RadiationToAmbient object defines radiant heat transfer between a surface and its environment.

The RadiationToAmbient object is derived from the Interaction object.

Access
import interaction
mdb.models[name].interactions[name]


25.57.1 RadiationToAmbient(...)

This method creates a RadiationToAmbient object.

Path
mdb.models[name].RadiationToAmbient

Required arguments

name

A String specifying the repository key.

createStepName

A String specifying the name of the step in which the RadiationToAmbient object is created.

surface

A Region object specifying the surface to which the radiation interaction is applied.

emissivity

A Float specifying the emissivity, .

Optional arguments

field

A String specifying the name of the AnalyticalField object associated with this interaction. The field argument applies only when distributionType=ANALYTICAL_FIELD. The default value is an empty string.

distributionType

A SymbolicConstant specifying how the radiation is distributed. This argument applies only when radiationType=AMBIENT. Possible values are UNIFORM and ANALYTICAL_FIELD. The default value is UNIFORM.

radiationType

A SymbolicConstant specifying whether to use the default surface radiation behavior, or the cavity radiation approximation. Possible values are AMBIENT and CAVITY. The default value is AMBIENT.

ambientTemperature

A Float specifying the reference ambient temperature, . This argument applies only when radiationType=AMBIENT. The default value is 0.0.

ambientTemperatureAmp

A String specifying the name of the Amplitude object that gives the variation of the ambient temperature with time.

Note:  Use None in an Abaqus/Standard analysis to specify that the reference ambient temperature is applied immediately at the beginning of the step or linearly over the step. Use None in an Abaqus/Explicit analysis to specify that the reference ambient temperature is applied throughout the step. This argument applies only when radiationType=AMBIENT.

Return value

A RadiationToAmbient object.

Exceptions

None.


25.57.2 setValues(...)

This method modifies the data for an existing RadiationToAmbient object in the step where it is created.

Required arguments

None.

Optional arguments

The optional arguments to setValues are the same as the arguments to the RadiationToAmbient method, except for the name and createStepName arguments.

Return value

None

Exceptions

None.


25.57.3 setValuesInStep(...)

This method modifies the propagating data of an existing RadiationToAmbient object in the specified step.

Required argument

stepName

A String specifying the name of the step in which the interaction is modified.

Optional arguments

The optional arguments to setValuesInStep are emissivity, ambientTemperature, and ambientTemperatureAmp arguments.

None.

Return value

None

Exceptions

None.


25.57.4  Members

The RadiationToAmbient object has members with the same names and descriptions as the arguments to the RadiationToAmbient method except the optional arguments to the setValuesInStep method.