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Forum: Fluent UDF and Scheme Programming

March 20, 2013, 00:11

Replies: 8

[help!] Empirical Reaction Rate UDF

Views: 3,042

Posted By cinwendy

Now I am using this #include "udf.h" ...

Now I am using this

#include "udf.h"
DEFINE_VR_RATE(vol_reac_rate,c,t,r,mole_weight,species_mf,rate,rr_t)
{
real s1 = species_mf[0];
real mw1 = mole_weight[0];
*rr_t = -0.1*s1/mw1;
}

Forum: Fluent UDF and Scheme Programming

March 19, 2013, 10:22

Replies: 8

[help!] Empirical Reaction Rate UDF

Views: 3,042

Posted By cinwendy

Hi vasava, Now I am a bit confused. Should I...

Hi vasava,

Now I am a bit confused. Should I use DEFINE_NET_REACTION or DEFINE_VR_REACTION? The reaction term in net_rxn looks more like the form I am interested in, but I don't have those...

Forum: Fluent UDF and Scheme Programming

March 19, 2013, 09:23

Replies: 8

[help!] Empirical Reaction Rate UDF

Views: 3,042

Posted By cinwendy

Hi vasava, thanks! I am really new to this...

Hi vasava, thanks!

I am really new to this UDF stuff. What does the "i" means? Is it related to each species or each cells? Can you show me how to loop it?

I get myself MSVS express for...

Forum: Fluent UDF and Scheme Programming

March 19, 2013, 01:49

Replies: 8

[help!] Empirical Reaction Rate UDF

Views: 3,042

Posted By cinwendy

[help!] Empirical Reaction Rate UDF

Dear all,

I would like to use UDF to define a empirical reaction rate, i.e. it does not have any relationship with the Arrhenius rate equation. I want to use a simplest one as a starter:

rate...

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