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Axial Flow Fan BC Spectification and Result Problem |
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New Member
Mehmetali
Join Date: Nov 2021
Posts: 1
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Hello,
I'm analysing a cooling axial flow fan in a tube with a steady flow, incompressible. My mesh is not so bad (0.79 max skewness) but I get some issues. My static and total pressure is always decreasing (it has to increase static pressure) in the tube even I changed boundary conditions like -Pressure Inlet - Pressure Outlet with target mass flow rate -Velocity Inlet - Pressure Outlet Also, area-weighted average velocity in input and output are very different, like 2 times bigger in output. I checked the rotating zone but it seems ok. My model is standard k-eps and I use coupled methods. Where should I check again? What do you think? Also, what boundary conditions should I use? Lastly, Can you share or link some documents about this problem with keywords like cooling fan, boundary conditions in fan analysis? I made literature research but I think that you already did and solved some cases, so your orientations are valuable for me. Thank you so much! Have a good day! |
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Tags |
axial fan, boundary conditions, pressure and velocity |
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