How many species and reaction mechanism we can use in our Chemkin file for simulation

Roh · February 23, 2019, 09:40

Guys,

In this post:

chemkin fluent

S/he has said,

Quote:

...btw Fluent will only work with mechanism with 50 species or less

Is it right?

How many species and reaction mechanism we can use in our Chemkin file for simulation? Is there any limitation? A valid link or... show me please that it's correct.

LuckyTran · February 23, 2019, 20:53

I see you didn't google.

From the Fluent manual.

The 50 species limitation is up to a certain version. I know the latest v19 no longer has this limitation. Not sure if 18 has it or not. Check the manual for your version or try it yourself.

Roh · February 24, 2019, 01:11

Thank you for your reply.

Quote:

Originally Posted by LuckyTran

...The 50 species limitation is up to a certain version...

Nope!

Quote:

Originally Posted by LuckyTran

...I know the latest v19 no longer has this limitation...

Are you sure? I have Ansys 19.2 and this is what I got when I searched in the documentation:

Quote:

Originally Posted by LuckyTran

...Not sure if 18 has it or not...

For 18.2.2 it has:

https://www.sharcnet.ca/Software/Ans...p_finrate.html

Quote:

Originally Posted by LuckyTran

...Check the manual for your version or try it yourself.

Maybe I can use Pressure-based solver to overcome this problem.

February 23, 2019, 20:53		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,675 Rep Power: 66	I see you didn't google. From the Fluent manual. The 50 species limitation is up to a certain version. I know the latest v19 no longer has this limitation. Not sure if 18 has it or not. Check the manual for your version or try it yourself. Roh likes this.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Lu and Law 19 Species Methane Reaction Mechanism - Empty	DustExplosion	Main CFD Forum	6	June 24, 2020 23:13
how to add the ion reaction to the combustion mechanism in Chemkin Pro	dfzw_jwd	Main CFD Forum	0	December 1, 2016 03:30
Having problem importing surface reaction mechanism from CHEMKIN	Quntin	FLUENT	0	March 10, 2016 01:25
Segmentation fault in running alternateSteadyReactingFoam,why?	NewKid	OpenFOAM	18	January 20, 2011 16:55
chemical reaction - decompostition	La S. Hyuck	CFX	1	May 23, 2001 00:07