CFD Online Logo CFD Online URL
Home > Forums > FLUENT

wierd problem with surface reation in Fluent

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

LinkBack Thread Tools Display Modes
Old   May 28, 2009, 18:23
Default wierd problem with surface reation in Fluent
Dongzi Wei
Join Date: Mar 2009
Posts: 33
Rep Power: 10
Jiuan is on a distinguished road
Sponsored Links
I am running a case including a gas phase reation and surface reaciton, which are:
SiH4(g) -> SiH2(g)+H2(g) and SiH2(g) ->Si(s)+H2(g). The geometry and boundary condition are rather simple. I input there parameters related to chemical kinetics into Fluent, which are Pre-exponential factor (A), activation energy (Ea), and temperature exponent (Beta). When I change the A or Ea for surface reaciton, the deposition rate of Si does not change, which is very strange. I run more cases to test it, and found out that even if I reduce the value of A by 1000 times, and keep Ea fixed, the deposition rate of Si is the same. I am totally confused by Fluent. . Does anybody have the problem before? Or if you guys have interest, you can have a try. Thanks in advance.

Jiuan is offline   Reply With Quote
Sponsored Links


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
Problem in Tutorial problem of fluent Phanindra FLUENT 5 April 17, 2007 09:57
CFX Free Surface problem sam CFX 6 March 21, 2007 19:49
Free surface problem Luk CFX 2 July 27, 2006 01:07
Can -FLUENT solve non-coal particle surface reacti Ganesh kumar FLUENT 0 February 20, 2006 03:03
Problem with ambit Lio FLUENT 4 July 6, 2004 08:23

Sponsored Links

All times are GMT -4. The time now is 05:15.