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#1 |
New Member
hosein
Join Date: Apr 2016
Posts: 1
Rep Power: 0 ![]() |
Hi all,
I am a new autodesk CFD user. and I want to analyze an air tunnel and my goal is to determine the amount of air out let volume. how i have to defined the boundaries? mu boundary setup now is: inlet Volume rate is 900 Cubic meter per hour. out let pressure 0 all the other wall are set to slip. But I received almost the same amount in outlet, but in a practical test I have had an almost 50% reduction in air flow. what would be my mistake or unassign boundary? Tanks for your help. |
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#2 |
New Member
Jon Wilde
Join Date: Dec 2016
Posts: 25
Rep Power: 9 ![]() |
In reality you have less flow exiting than you do entering?
This could only really be true with a high speed compressible study and only with volumetric flow rate, otherwise you really must have the same volume of flow entering and exiting. |
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#3 |
New Member
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If the water is coming out out of the tip too fast like a tap, then you can increase the pipe size, it wont slow down the volume at all, but itll make it come out in a better flow rate not messing up the media.
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Tags |
flow reduction, volume flow rate |
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