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

UDF for concentration transport equation

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   November 22, 2006, 22:41
Default UDF for concentration transport equation
  #1
heri
Guest
 
Posts: n/a
Hi

I am simulating an polymerization reactor.As we know propogation reaction can not be handled in fluent. so i want to use UDS for the perpose.I want to solve species transport equation in terms of concentration. i mean

grad.(V*Conc.ofA - D*grad of Conc. of A)= Source of A (in Kgmoles/m3.sec)

problem is i know source in kgmoles/m3.sec but i can not convert it in kg/m3.sec because molecular weight of redicals very

Anybody have idea how to define this in fluent.I know it can be done using DEFINE_UDS_FLUX but i am not sure how to proceed? Any help regarding this will be appreciated.

Thanks
  Reply With Quote

Old   August 15, 2011, 11:23
Default
  #2
New Member
 
Ignacio
Join Date: Oct 2010
Posts: 4
Rep Power: 15
sanjose is on a distinguished road
Hi heri. I'm working in a polymerization reactor also. How did you deal with the simulation of the species? I'm using UDFs for the sources of reaction.
I'd appreciate your response.
Thank you
sanjose is offline   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
Solving Transport equation for additional variable using CFX creddy_trddc CFX 11 April 2, 2015 21:07
Charge transport UDF ak6g08 Fluent UDF and Scheme Programming 1 June 27, 2011 04:21
UDF Transport equation for transition momentum thickness Reynolds number Wantami FLUENT 0 April 9, 2011 02:50
Modified e transport equation in k-e model FluentNewbie Fluent UDF and Scheme Programming 0 July 6, 2010 11:41
Poisson equation combined with transport equation Se-Hee CFX 0 December 27, 2007 01:00


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