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

Circular Pipe grid generation in CFX4.4 Build

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   November 22, 2003, 18:37
Default Circular Pipe grid generation in CFX4.4 Build
  #1
KKA
Guest
 
Posts: n/a
I have been trying to generate a structured grid mesh using CFX4.4 Build but it has not been sucessful. Though I was able to generate it by putting a small squre box at the centre of it. But after I sent it to TASCflow2.12, and ran it, my results were having a big errors. I believe the error might be due to grid, I am confidence in that square box at the centre. Because I want to contract nodes close to the wall, the centre nodes seam to be uniform. Beside the method I specified above, do any body knows any other method? Suggestions and answers take in account that the concern mesh is one-way bias on r-direction. Please give me a hand on this.

Thank you.
  Reply With Quote

Old   November 25, 2003, 04:53
Default Re: Circular Pipe grid generation in CFX4.4 Build
  #2
Reemull
Guest
 
Posts: n/a
The easiest way to check your grid mesh in TASCflow is to use the Grid>Check Quality drop down menu. This should allow you to check your grid skew and aspect ratio, and to see if it flags up any warning signals. If there are problems you than then use the visualiser to track down the problem area so that you can improve it in CFX-Build. If it doesn't then the square box method is generating a decent grid. Generally though - when modelling a circular duct I use the square box method and it works ok.

Roy
  Reply With Quote

Old   December 2, 2003, 11:33
Default Re: Circular Pipe grid generation in CFX4.4 Build
  #3
Bob
Guest
 
Posts: n/a
Do you have to equivalence nodes before taking the structured mesh from build to Tascflow ? You have to do this in CFX, may that is your problem ? Bob
  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
On grid independent solution for pulsatile flow David FLUENT 5 March 25, 2022 04:33
structured grid generation pertup Main CFD Forum 0 November 2, 2004 04:05
structured grid generation problem Mehdi Main CFD Forum 0 July 6, 2004 10:19
Combustion Convergence problems Art Stretton Phoenics 5 April 2, 2002 06:59
Latest news in mesh generation Robert Schneiders Main CFD Forum 0 March 2, 1999 05:07


All times are GMT -4. The time now is 10:14.