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

CFX11 Vs. CFX12/ CFX13

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   May 24, 2011, 23:56
Smile CFX11 Vs. CFX12/ CFX13
  #1
Senior Member
 
mohammad
Join Date: Dec 2010
Location: UK
Posts: 245
Rep Power: 16
mohammad is on a distinguished road
Hey;
I'm simulating the NREL wind turbine model with CFX11.

At this stage, my plan is to investigate the different turbulent models( DES, SST, SA) and transitional flow.

I have some questions now.

1-Do you have any information about the advantages of the newer versions over CFX 11 about the use of turbulent models? is there any newer turbulent option or influential modification available in newer versions?

2-I read the REF[1] about a transitional model and its better prediction of wind turbine performance. Is this model available in Ansys CFX v11( 2007!!!). If not, which version of CFX has this transitional model?

Reference
[1]-Predicting 2D Airfoil and 3D Wind Turbine Rotor Performance using a Transition Model for General CFD Codes; R.B. Langtry, J. Gola, and F.R. Menter , AIAA; 2006
mohammad is offline   Reply With Quote

Old   May 25, 2011, 07:38
Default
  #2
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,655
Rep Power: 143
ghorrocks is just really niceghorrocks is just really niceghorrocks is just really niceghorrocks is just really nice
There has been incremental development on the solvers generally. The V13 solver runs 10% or 20% faster than V11, maybe more.

The turbulence models and general solver has had incremental development. I am not exactly sure which version of CFX has which turbulence model.

I cannot see why you would do anything but get the current version. ANSYS will not sell you an old version, so why consider it?
ghorrocks is offline   Reply With Quote

Old   May 26, 2011, 04:11
Smile
  #3
Senior Member
 
mohammad
Join Date: Dec 2010
Location: UK
Posts: 245
Rep Power: 16
mohammad is on a distinguished road
Dear Glenn Horrocks.
Thank you for your help.
To those how may read this page later:
The transitional model is available in CFX-11. And the details are presented in "ANSYS CFX Transition Model Formulation " section of Ansys help.
Also if you see the above help pages , you will see it's similar with the Menter[AIAA-2006] paper. it means that the in CFX-11 the cited paper is used.

Good Luck
mohammad is offline   Reply With Quote

Reply

Tags
cfx 11, cfx 12, cfx 13

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
cfx12 x64 meshing: pc has 4 core but only 1 core working for the mesh? why? leeruoyun CFX 2 March 23, 2010 13:37
Slow networking Windows FileServer - Linux CFX12 Arjan CFX 1 December 18, 2009 04:48
own grid to CFX11 subba CFX 5 June 27, 2007 05:49
Importing CFX10 data into CFX 11 Stephen CFX 1 May 11, 2007 00:42
Importing CFX10 data into CFX 11 Stephen CFX 0 May 9, 2007 07:55


All times are GMT -4. The time now is 22:19.