[behrouz]

hi to all
in one case include three concentric cylinders (inner core and outer core and shell),heat generate in both cylinder with different value(Q1 ,Q2) and initial temperature T1 ,T2. air inter under shell and over the cores and exit to atmosphere.temperature distribution in inner and outer core wanted.
i import the geometry(as uploaded file) from CATIA R20 to ANSYS workbench 2015 and define shell as user defined enclosure and specify the inlet and out let air.
NOW
how i should define other boundary condition???
and can i simulate system in one case or analyse solid and fluid parts separately?
any guide or idea can help
tnx

[behrouz]

i mean in the BC between inner and outer core i should use wall or interior or internal???