Learning Forum

[Kepojeyathas94]

Hi everyone.
Inside my fluid domain I'm trying to put a a surface or a volume to simulate a fan in which the air flow starts (fan) and another volume in which the air flow lasts (aspirator). Like an 'inlet' and 'outlet' but these two volumes are inside of the air domain so they come as interior BC. How can I simulate the fan and the aspirator? I would like to let the air pass from the fan to the aspirator.
Thanks in advance.

[Keyur Kanade]

please check fan boundary condition in help. 

/forum/forums/topic/how-to-access-the-ansys-online-help/

if this helps you, please mark this post as 'is solution' to help others on forum.

 

 

 

[Kepojeyathas94]

I've read the fan boundary condition in the user's guide but nothing happens when I put these settings in the fan settings. I've set only the min and max velocity magnitude.

[Keyur Kanade]

your min and max has very small difference. 

[Kepojeyathas94]

I did as you say but the fan flow is very little.

 

This is the velocity contour

As you can see in this picture, the streamline is too little. I tried to put a fan where the streamlines begin and to get out from the building as the red indicator.

[Bran]

Hi Kepojeyathas94, 

I came across your post here. I was wondering if you can provide guidance on how you set the fan boundary condition, as I receive an error when I attempt to add a fan to my container.

WARNING: 537 pair(s) of adjacent faces with different orientation on zone 7.

Error: jump zone 7 has wrong types of cell zones (cell and cell).

5: Adjacent faces have different orientation: Face 187, zone 7, (ID: 34377811): at location ( 3.17346e-01, -3.33962e-01,  1.85309e+00).

Regards,

[Rob]

Can you check what you're assigning the fan to:  if you're using the "volume" interior it's anybody's guess which way it'll point. 

[aashishk23]

I have a fluid domain of 1 feet and I need to cool the inside of the box quickly by using a CPU fan (0.4 feet). Can you suggest me a way of how can I proceed?n