Learning Forum

[M Usman]

Hey Everyone, I want to do CFD Simulation in which a body like rod is at 300 degree celcius and being cooled by the convection heat transfer through air flow over the body and want to see how the temperature of body reduces over different periods of time. First I tried the approach of simple steady stead and transient flow analysis, but they are probably not the right approaches, and in conjugate heat transfer analysis, I am unable to apply the conditions on body as fluent only displays the domain walls and interfaces and not the solid body or its walls on which the conditions has to be applied. One of the reason which I am assuming is assembly meshing as that is not possible in newer versions and hence the meshed model is not correct when import in fluent for CHT. If anyone can help in this regard or have done the analysis before. The purpose of analysis is to find the time required to cool the body to certain temperature through air flow.

[Rob]

I suggest updating to a more recent version of the software as Assembly meshing was removed several releases ago. In Fluent we tend to use Fluent Meshing, but Ansys Meshing is good for swept geometry. 

Have a look at the tutorials in Help and at the fluids courses on here (Learning, left upper) as that'll help with the basics.