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

NOx postprocessing with CFX-TASCflow 2.11

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   October 15, 2002, 07:22
Default NOx postprocessing with CFX-TASCflow 2.11
  #1
Luca
Guest
 
Posts: n/a
...I've a question for everyone uses CFX-TASCflow for combustion (I hope someone can reply me...). My problem is like this: I've set up a EDM multistep combustion model with 9 chemical species (so I used a multicomponent fluid mixture), and solved my problem, obtaining my final RSO file. Then I'd liked to add a post-processing session to calculate thermal NOx restarting from my RSO converged file.

I had to add 2 additional scalar with TASCBOB in 'Attribute' part: TFLUC and NO. Tascbob puts everytime these 2 scalars at the number 1 and 2, shifting all other pre-existent scalars of two position:if CO2 (for example) was the scalar number 1, after I added TFLUC and NO, he become number 3!!! This is a problem, because when I had to add the new initial values of these two new scalars overwriting the 'old' RSO, I noticed that the scalar fields in the RSO file WAS NOT CORRECTED (updated, shifting the indices of 2)!!! Infact the CO2 scalar field ('old' number 1) seems to be considered as the TFLUC scalar fields ('new' number 1), and so on for other scalars: tasctool seemed to read the fields of TFLUC and NO from the 'old' RSO, while it asked me for the values of fields of the 'new' last two scalars (before included in the 'old' RSO file). I didn't know how I can save the 'old' results manipulating the RSO file, and for doing the NOx postprocessing I had to restart defining TFLUC and NO from the beginning.

Someone had ever experienced that situation or knows some way to resolve my problem without restart the simulation from the beginning??? Thank you.Luca
  Reply With Quote

Old   October 17, 2002, 00:58
Default Re: NOx postprocessing with CFX-TASCflow 2.11
  #2
Y.K.
Guest
 
Posts: n/a
You may swap scalar fields values in tasctool. If you have 'old' CO2 values in TFLUC scalar try to do the following command:

calc co2_old = tfluc calc co2=co2_old

After swapping all EDM scalars you may initialize tfluc and no:

calc tfluc=0 calc no=0

With best regards, Y.K.
  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
CFX NOx mechanism in CFX 11 Henrik CFX 9 December 17, 2009 05:15
Yplus in CFX TascFlow Nicola CFX 0 July 14, 2006 07:48
"ANSYS CFX" and "CFX TascFlow" ROOZBEH CFX 2 December 13, 2005 02:37
Compilation on Tascflow 2.11 cfd guy CFX 5 March 15, 2002 13:07
Interfacing the TASCFLOW and CFX Bilal Bukhari CFX 1 February 27, 2001 23:24


All times are GMT -4. The time now is 10:09.