Heat flux applied to a face specifies the rate of thermal energy transfer per unit area of the face.
To define heat flux in a thermal study:
Do one of the following:
In the COSMOS AnalysisManager tree, right-click the Load/Restraint icon and select Heat Flux
-or-
Click COSMOSWorks, Loads/Restraints, Heat Flux
-or-
Click Heat
Flux
on the COSMOSWorks Thermal Loads toolbar.
The Heat Flux PropertyManager appears.
In the graphics area, select the desired faces.
Under Heat Flux, do the following:
Set Units to the desired unit system.
Type a value for
the Heat Flux
in
the selected unit system.
To define a time-dependent
heat flux, click Use Time Curve
then click Edit to
import
or define a time curve. The value of the heat flux at any time
instant is calculated by multiplying the specified heat flux value by
the corresponding Y value of the time curve. This option is available
for transient thermal studies only.
To define a temperature-dependent
heat flux, click Use Temperature Curve
then click Edit to import
or define a temperature curve. The value of the heat flux at
a given temperature is calculated by multiplying the specified heat flux
value by the corresponding Y value of the temperature curve.
To control the heat flux condition by a thermostat for a transient thermal study, do the following:
Click Thermostat (Transient).
Select a vertex for the location of the thermostat.
Make sure to first click
in the Sensor (select a vertex)
box before selecting a vertex for the sensor.
Select the unit
for the Lower bound temperature
and type the desired value in the value box.
Select the unit
for the Upper bound temperature
and type the desired value in the value box.
Click
.
To modify heat flux loads:
In the COSMOS AnalysisManager tree, right-click the heat flux load you want to modify and click Edit Definition, or double-click the heat flux load.
The Heat Flux PropertyManager appears.
Make the desired changes.
Click
.
TIPS:
If you have multiple studies, you can drag and drop the loads from one study to another. You can also drag and drop the whole Load/Restraint folder.
You can modify the default names of the load icons. This helps you keep track of the different loads applied to the model.
You have an option to hide or show the individual loads. In the COSMOS AnalysisManager tree, right-click the respective load icon and then click Hide/Show.
To change the color of the heat flux symbol, click the Color button in the Heat Flux PropertyManager. The color palette opens. Select the desired color and click the OK button.
Selected entities box lists the number of faces to which the specified heat flux is to be applied.