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

solving algorithm in CFX

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

Reply
 
LinkBack Thread Tools Display Modes
Old   May 29, 2010, 08:01
Question solving algorithm in CFX
  #1
Senior Member
 
feizaghaee's Avatar
 
moein
Join Date: Dec 2009
Posts: 132
Rep Power: 7
feizaghaee is on a distinguished road
Send a message via Yahoo to feizaghaee
does anybody know which algorithm cfx uses to solve a problem?(simple, simpelc, piso ...)
and how can i use QUICK scheme?
feizaghaee is offline   Reply With Quote

Old   May 29, 2010, 17:55
Default
  #2
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 10,929
Rep Power: 85
ghorrocks has a spectacular aura aboutghorrocks has a spectacular aura aboutghorrocks has a spectacular aura about
It is all explained in the documentation. It uses a coupled solver. It does not use the uncoupled methods you describe.

As for QUICK, you need to set that up with CEL.
ghorrocks is offline   Reply With Quote

Old   May 30, 2010, 02:45
Default
  #3
Senior Member
 
feizaghaee's Avatar
 
moein
Join Date: Dec 2009
Posts: 132
Rep Power: 7
feizaghaee is on a distinguished road
Send a message via Yahoo to feizaghaee
thanks a lot my friend
feizaghaee is offline   Reply With Quote

Old   May 31, 2010, 01:36
Default
  #4
New Member
 
Arda Ersan
Join Date: Aug 2009
Posts: 13
Rep Power: 8
cfdman is on a distinguished road
Hello Glen,

Which solver algorithms, schemes available in CFX? Could you give some details about this?

Thanks
cfdman is offline   Reply With Quote

Old   May 31, 2010, 02:02
Default
  #5
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 10,929
Rep Power: 85
ghorrocks has a spectacular aura aboutghorrocks has a spectacular aura aboutghorrocks has a spectacular aura about
DOCUMENTATION. Read it. If you want more details followup the references in the doco.
ghorrocks is offline   Reply With Quote

Old   January 13, 2012, 12:49
Default
  #6
Member
 
Mina
Join Date: Apr 2011
Posts: 88
Rep Power: 6
Mina_Shahi is on a distinguished road
Quote:
Originally Posted by ghorrocks View Post
DOCUMENTATION. Read it. If you want more details followup the references in the doco.
Hi Glenn

I am confused i read CFX theory manual but i didn't get the point and the references are too old and it is not available for me.
I also read your advise in other pages in this Froum, what i understood is that CFX doesn't use SIMPLE- SIMPLEC- SIMPLER or PISO- but it does pressure velocity coupling, it uses Rhie Chow for interpolating. Is it true???

i found this document when i was searching on the google appd.pdf if you go to page D-19 you can see that it is talking about SIMPLEC which made me even more confused, can you please take a look at this document and let me know what you think?

Thank you in advance
Mina_Shahi is offline   Reply With Quote

Old   January 14, 2012, 00:31
Default
  #7
Far
Super Moderator
 
Far's Avatar
 
Sijal Ahmed Memon (turboenginner@gmail.com)
Join Date: Mar 2009
Location: Islamabad Pakistan
Posts: 3,946
Blog Entries: 6
Rep Power: 39
Far will become famous soon enoughFar will become famous soon enough
Send a message via Skype™ to Far
Quote:
it uses Rhie Chow for interpolating. Is it true???
Yes, It is true.
Far is offline   Reply With Quote

Old   January 14, 2012, 06:59
Default
  #8
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 10,929
Rep Power: 85
ghorrocks has a spectacular aura aboutghorrocks has a spectacular aura aboutghorrocks has a spectacular aura about
The document you found is using CFX4. This was the previous CFD code, and was superseded by CFX5. CFX5 is a coupled solver and does not use SIMPLE (or its variants). All versions of CFX after 5 use the coupled solver.
ghorrocks is offline   Reply With Quote

Old   January 16, 2012, 06:32
Default
  #9
Member
 
Mina
Join Date: Apr 2011
Posts: 88
Rep Power: 6
Mina_Shahi is on a distinguished road
Quote:
Originally Posted by ghorrocks View Post
The document you found is using CFX4. This was the previous CFD code, and was superseded by CFX5. CFX5 is a coupled solver and does not use SIMPLE (or its variants). All versions of CFX after 5 use the coupled solver.
Thank you for replying me, because this document made me so confused,
Mina_Shahi 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
How to write k and epsilon before the abnormal end xiuying OpenFOAM Running, Solving & CFD 8 August 27, 2013 15:33
Problems with simulating TurbFOAM barath.ezhilan OpenFOAM 13 July 16, 2009 05:55
MRFSimpleFoam amp cyclic patches david OpenFOAM Running, Solving & CFD 36 October 21, 2008 21:55
Modeling in micron scale using icoFoam m9819348 OpenFOAM Running, Solving & CFD 7 October 27, 2007 00:36
Transient simulation not converging skabilan OpenFOAM Running, Solving & CFD 12 September 17, 2007 17:48


All times are GMT -4. The time now is 04:39.