CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > FLUENT

MRF Method For Ceiling Fan Analysis

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   December 6, 2017, 10:50
Question MRF Method For Ceiling Fan Analysis
  #1
New Member
 
Berkhan Bayraktar
Join Date: Oct 2017
Posts: 1
Rep Power: 0
BerkhanB is on a distinguished road
Hello all,

I am trying to analize the flow created by a ceiling fan using MRF method. I have two different fluid zones. First zone is cylinder which includes the fan, the other is the room itself. I'm confused about cell zone and boundary conditions. Rotating cylinder (first zone) has a frame motion as a cell zone condition. The fan is selected as a moving wall with 0 rad/sec relative to adjacent cell zone. (Both are rotating with 180 rpm)

Are these boundary conditions correct? I don't think that they should rotate together, however, the method seems to work with those BC.

If this is correct can I read the moment on the fan directly from the reports? If not, how can I read it?

In the image vertical velocities are plotted and there are also hollow cylinder to stabilize the flow.

Thank you in advance.
Attached Images
File Type: jpeg Fluid w velocity.jpeg (114.5 KB, 14 views)
BerkhanB is offline   Reply With Quote

Old   November 11, 2019, 01:56
Default
  #2
New Member
 
john
Join Date: Sep 2019
Posts: 1
Rep Power: 0
Clavilux is on a distinguished road
I don't have pretty much knowledge of the MRF Method for ceiling fan analysis. Looking forward to seeing what others would say.
Clavilux is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Simulate rotating Fan using no MRF federernadal Main CFD Forum 2 May 3, 2018 01:11
Automatic geometry analysis or curvilinear coordinates adaptive method EdgarasM Main CFD Forum 0 November 17, 2017 05:19
Constant Power Fan Model using General Momentum Source Dano62 CFX 0 April 14, 2016 14:09
MRF, 3d Centrufugal Fan Analysis in FLUENT kaktus10 FLUENT 13 December 22, 2014 03:27
MRF Solver fan simulation - problem sivakumar FLUENT 0 February 15, 2013 04:26


All times are GMT -4. The time now is 11:55.