August 5, 2018 at 7:21 pmhamdaSubscriber
In my problem, I have defined 2 domains; solid domain (spheres) and fluid domain (the space between them).
In sub domain I have defined heat source but I have a problem with its unit! I mean my unit is (w/m3) but in CFX (W). In fluent I didn't have such problem because in it the unit was (w/m3). Do I have to write an expression for it?
Also How can I sure that I have a solid-fluid interface for my problem? indeed this is the main point to me!
Many thanks in advance
August 6, 2018 at 10:32 amRobAnsys Employee
Which solver are you using, and what heat source are you trying to apply?
August 7, 2018 at 12:33 pmhamdaSubscriber
Thank you for reply.
I use CFX (14.5). I should do 2 simulations , first for a constant heat source and second for a heat source that is a function of time.
currently my problem is not related to heat source. I have a great problem in defining solid-fluid interfaces that made me frustrated and I can't run CFX. I created new discussion about my current problem:
August 8, 2018 at 5:58 amDrAmineAnsys Employee
Source is in W/m^3, Total source is in W (already integrated)
August 29, 2018 at 6:45 pmrgfsteedAnsys Employee
If the fluid and solid bodies are both included in your CAD model when you mesh it, the Workbench Meshing app will have identified these contacts and passed them on to CFX-Pre on import. Pre uses this information to create the default automatic interfaces. If you happen to manually define one of the interfaces or otherwise define a boundary condition on one of these faces, Pre will remove the corresponding regions from the automatic interface.
If you have deleted the automatic interface, Pre won't regenerate it since the assumption is that you don't want it. To get it to regenerate the interface just visit the "General Options" under the case options at the bottom of the feature tree in Pre and re-enable "Automatic Default Interfaces".
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