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September 21, 2024 at 1:05 pm
hasan.mustafa.moayad
Subscriberhello, everybody,
I'm working on Ansys Fluent CFD to simulate a solar (water- air) collector.
In the simulation, I divided the collector into two equal parts to simulate one-half of the collector because the second half will behave like the first one. So, I define "Symmetry wall" as a named selection in the mesh.
My question is, will I do the right simulation and the results be the same for the second half? Or doI have to simulate the whole collector?
I really appreciate any help you can provide. -
September 23, 2024 at 10:00 am
Rob
Forum ModeratorWhat is the incident angle of the solar load?
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September 24, 2024 at 7:36 am
hasan.mustafa.moayad
SubscriberDear Rob, I didn't activate the radiation mode rather, I have a heat flux on one surface.
I'm asking if I do the correct thing in creating the symmetric B.C. or I need to simulate the whole collector?
Thank you.
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September 24, 2024 at 8:48 am
Rob
Forum ModeratorDo you add heat to just the "bottom"? Symmetry is only suitable if the geometry and flow are both symmetrical: are they?
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September 24, 2024 at 11:43 am
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September 24, 2024 at 12:13 pm
Rob
Forum ModeratorSo you should be OK. But.... Remember the buoyant effects may be fairly unstable so end effects may be interesting.Â
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September 25, 2024 at 8:33 am
hasan.mustafa.moayad
SubscriberDear Rob, I want to ask you, how does Ansys fluent deal with the surroundings (I mean the space outside my geometry)? because I have convection B.C. on the top of the air volume (green colored), I put both the convection coefficient and free stream temperature. So, will the convection be between the green-colored surface and the surroundings? or between the green surface and the air volume? Â
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