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

Periodic Surface in CFX-BLADEGEN

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   December 31, 2004, 12:23
Default Periodic Surface in CFX-BLADEGEN
  #1
Ali
Guest
 
Posts: n/a
Hello every one I have measured dimension of a blade of an axial flow pump. Next, send the data to CFX-BladeGen pass Data Import menu and transfer Data Set into a BladeGen Model. Then, start BladeGenPlus by selected the button on toolbar but BG show me an error " Invalid CFX-BladeGen geometry periodic surface ordering is reverse". What is cause of an error? Ali
  Reply With Quote

Old   December 31, 2004, 12:38
Default Re: Periodic Surface in CFX-BLADEGEN
  #2
Gang
Guest
 
Posts: n/a
It may caused by inconsistence between measured setup and BladeGen model on rotating direction and axis of pump.
  Reply With Quote

Old   December 31, 2004, 17:56
Default Re: Periodic Surface in CFX-BLADEGEN
  #3
Ali
Guest
 
Posts: n/a
Hi Gang, Thanks for reply...Changing the rotation axis didn't work. Change the flow direction worked but it gave a wrong flow direction. Ali
  Reply With Quote

Old   January 4, 2005, 13:15
Default Re: Periodic Surface in CFX-BLADEGEN
  #4
Gang
Guest
 
Posts: n/a
When you open your BG model, is the flow direction correct in the upper left window? In other words, is the flow direction arrow pointing from inlet to outlet of domain?
  Reply With Quote

Old   January 4, 2005, 13:21
Default Re: Periodic Surface in CFX-BLADEGEN
  #5
Ali
Guest
 
Posts: n/a
Yes. When I made the model using BG the arrow points from inlet to outlet. When I want to transfer it BG+ I must modify the direction!! This gives wrong flow direction and names in the mesh. thank you.. and happy new year.. Ali
  Reply With Quote

Old   January 5, 2005, 12:00
Default Re: Periodic Surface in CFX-BLADEGEN
  #6
Gang
Guest
 
Posts: n/a
Is the blade rotating direction correct when you create BG model from measured data? For example, if flow is coming from left to right in your upper left window and pump is rotating in negative Z-direction, your blade pressure surface should face up in your upper right window. Here assume rotating axis is on Z-axis when you measure blade geometry. Another way to check whether blade orientation and rotating direction are right or not is to use animation. Once you show 3D view in your upper right window, right click mouse will bring up popup menu and select animate.
  Reply With Quote

Old   January 8, 2005, 10:27
Default Re: Periodic Surface in CFX-BLADEGEN
  #7
deLuther
Guest
 
Posts: n/a
Try to change span direction - sometimes this works...
  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
User surface creation in CFX post Vicky88 CFX 3 January 28, 2011 05:34
Surface Group Problem in CFX krrishcfd CFX 0 March 18, 2010 05:38
CFX bubble simulation with free surface model adma CFX 6 February 3, 2006 11:17
CFX 4.4 New free surface option Michael Rasmussen CFX 3 October 5, 2001 13:24
CFX 5.5 Roued CFX 1 October 2, 2001 16:49


All times are GMT -4. The time now is 02:39.