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

Moment Report from Fluent

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

Reply
 
LinkBack Thread Tools Display Modes
Old   February 28, 2008, 23:10
Default Moment Report from Fluent
  #1
Thanathat
Guest
 
Posts: n/a
I try to export the moment on rotational disk that spin respect to Z axis 15000 RPM, after I export the moment ( Moment center 0 0 1 ) I saw the data it have 3 sets of data by Total Moment : ( -0.00955129 0.0067281169 -0.00064097806 ) , so my question are

1. It that mean all number refer to moment of X,Y and Z direction ? If yes , why we still have x,y component because we choose only Z component.

2.If I need the total moment magnitude whai should I do Hope hear from every one soon.

  Reply With Quote

Old   February 29, 2008, 02:28
Default Re: Moment Report from Fluent
  #2
mAx
Guest
 
Posts: n/a
Moment center doesn't mean moment-axis in your case, if the coordinate-system-origin is on your rotation-axis, your total moment on z-axis should be -0.00064097806
  Reply With Quote

Old   February 29, 2008, 04:01
Default Re: Moment Report from Fluent
  #3
Thanathat
Guest
 
Posts: n/a
Yes my coordinate system origin is on the rotational axis, so if I need to report the total moment with momen center ( 0 0 1 or on reference with Z) we should get in the third term, Am I cprrected ?? ( xxxxxx,yyyyyy,zzzzz)
  Reply With Quote

Old   February 29, 2008, 04:28
Default Re: Moment Report from Fluent
  #4
mAx
Guest
 
Posts: n/a
yes, it is
  Reply With Quote

Old   December 11, 2014, 01:42
Default torque prediction in fluent
  #5
New Member
 
sanandtv
Join Date: Aug 2010
Posts: 8
Rep Power: 7
sanandtv is on a distinguished road
hi i m trying to predict disk friction loss of a plain disc rotating in a cylindrical enclosure, using Fluent. I am consistently overpredicting (150% minimum) the torque when compared to experimental data. I am doing an axisymmetric 2D analysis, and getting the torque directly from reports/moment.....so on.I tried all turbulence models, yplus adapation upto <1 also. But results are not very different. Can anyone help me..


thanks in advance
sanand
sanandtv is offline   Reply With Quote

Reply

Thread Tools
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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Two questions on Fluent UDF Steven Fluent UDF and Scheme Programming 4 September 20, 2013 16:30
Force can not converge colopolo CFX 13 October 4, 2011 22:03
moment report ehsanmashhad STAR-CCM+ 0 May 27, 2011 05:21
Fluent Force Report maharvey FLUENT 2 April 12, 2010 13:06
how to caculate area,force and moment in Fluent mimibenben FLUENT 0 July 3, 2006 22:00


All times are GMT -4. The time now is 19:49.