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

Setting up a point monitor rotating with the blade

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

Reply
 
LinkBack Thread Tools Display Modes
Old   September 11, 2008, 21:07
Default Setting up a point monitor rotating with the blade
  #1
Hamidur
Guest
 
Posts: n/a
Hi Guys I have been doing a stator-rotor transient simulation. In order to see the change of flow characteristics with respect to time at a particular location, I specified a Cartesian point in the space of the rotor section. As you know the rotor is rotating at a constant speed in this transient case. I am interested to see the instantaneous result of a variable (e.g pressure)where the point is rotating with the rotor itself.

How the point can be made rotating along with the rotor as seen from the stationary frame of reference?

I appreciate your kind response please.

Thanks
  Reply With Quote

Old   September 13, 2008, 17:00
Default Re: Setting up a point monitor rotating with the b
  #2
johnny
Guest
 
Posts: n/a
A monitor point in a rotating frame of reference is in fact rotating in the stationary frame of reference. When you define cartesion coordinates for a monitor point, it actually gets tagged to the nearest node to the x,y,z location, and it sticks to that node for the rest of the simulation.

Also, in a transient rotor stator run, the mesh does not move. The equations are simply solved in the relative frame of reference with source terms added to account for Coriolis effects, centrifugal forces, etc. The results at the interface are numerically pitched and the results are passed across the interface.
  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
[ANSYS Meshing] Mesh elements inside turbine blade eoinsturbine ANSYS Meshing & Geometry 2 May 15, 2011 11:44
blade to blade 2D CFD Hina Main CFD Forum 0 December 30, 2010 10:14
Plot data for a fixed point aut_iut OpenFOAM 0 December 23, 2010 06:16
CFX Post: Problems with moving point cloud for changing time steps spatialtime CFX 0 December 7, 2009 05:56
Setting number of digits after the point using Gam Miri FLUENT 0 March 21, 2005 07:00


All times are GMT -4. The time now is 11:53.