(COSMOSWorks Thermal Loads toolbar).Use the Convection PropertyManager to apply convection boundary condition to selected faces of the model in thermal studies (steady state and transient). You can associate a temperature curve with the convection coefficient to simulate a temperature-dependent variation. In transient thermal studies, you can also associate a time curve to simulate time-dependency of the convection coefficient and the bulk temperature as well.
To define a convection boundary condition:
In the COSMOS AnalysisManager tree, right-click Load/Restraint and select Convection.
-or-
Click Convection
(COSMOSWorks Thermal Loads toolbar).
-or-
Click COSMOSWorks, Loads/Restraints, Convection.
The Convection PropertyManager appears.
In the graphics area, select the faces for which the convection boundary condition is to be defined.
The selected faces appear in the Faces
for Convection box 
.
Select the unit system you want to use to enter the values of the Convection Coefficient and the Bulk Temperature.
Under Convection Coefficient, do the following:
Type a value for the Convection
Coefficient 
.
Click Use
Time Curve 
and then click Edit
define or import a time curve and associate
the convection coefficient with it.
Click Use
Temperature Curve 
and then click Edit
to define or import a temperature curve
and associate the convection coefficient with it.
Under Bulk Ambient Temperature, do the following:
Type a value for the Bulk
Ambient Temperature 
.
Click Use
Time Curve and then click Edit
to associate the bulk temperature with a time curve.
Click 
.