inlet set... but in the results, it seems it is not present

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danper
Posts: 2
Joined: Wed Feb 08, 2023 9:44 pm

inlet set... but in the results, it seems it is not present

Post by danper »

hi to everybody!

OS: Windows 10 Version 2009
Word size of FreeCAD: 64-bit
Version: 0.20.2.29177 +426 (Git)
Build type: Release

i have a problem:

I am trying to simulate a system with a jet of air shooting against a plane hood inside an open space. the problem is that the simulation proceed fine, but at the end in the results, it seems the inlet has not been set.

below some of the parameters:

the inlet is the air jet, that has a boundary set as uniform speed of 165 m/s, i tried to set is as flow rate, cartesian, normal to surface....
the outlet is the plane surface of the hood. i set it as velocity ( one time cartesian and the other normal to surface)
i set also some surfaces as wall, non slip,
there are 2 symmetry walls
and there are 3 surfaces set as open with atmosferic pressure as 0 ( but i tried to set it also as inlet with pressure 0).

for every try i did, the results doesn't have the air coming from the inlet.

if i delete the outlet of the hood, the inlet appear, but never with the outlet set.

do you have any suggestion or idea?

thank you in advance
chrisb
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Posts: 53933
Joined: Tue Mar 17, 2015 9:14 am

Re: inlet set... but in the results, it seems it is not present

Post by chrisb »

danper wrote: Wed Feb 08, 2023 10:03 pm do you have any suggestion or idea?
I'm not an FEM expert, but I guess that the file will be needed to help you.
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danper
Posts: 2
Joined: Wed Feb 08, 2023 9:44 pm

Re: inlet set... but in the results, it seems it is not present

Post by danper »

hi chrisb,

sorry, I forgot the most important part
Attachments
airflow-hood.FCStd
(25.37 KiB) Downloaded 38 times
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