How to use more than two temperature ranges of Chemkin thermodynamic data in Fluent

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  • Last Post 18 February 2019
kzqing posted this 02 January 2019

Hello, 

I am trying to simulate air dissociation effect in hypersonic flow. I import Chemkin mechanism into Fluent. For the thermodynamic data, when I just use two temperature ranges, it works fine, the two temperature range format is as followings:

However when I tried to use three temperature ranges:

Fluent gives me Error: Invalid THERMO data at line no. 18.\n.

I checked the "Chemkin-Pro Input Manual", it says "using more than two temperature ranges", the format should be like this. Is it that Fluent does not support more than two temperature ranges?

Could someone help me here?

Thank you,

Qing

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kzqing posted this 08 January 2019

Hello! Are there anyone who can help me with my question?

It seems that after changing from "ANSYS customer portal support" to this "student community", it becomes quite difficult to get support from ANSYS support engineers. 

abenhadj posted this 09 January 2019

I will check and come back to you

Best regards,

Amine

abenhadj posted this 10 January 2019

Which mechanism are you trying to use?

Best regards,

Amine

kzqing posted this 10 January 2019

I use my own defined mechanism. It looks like this:

REACTIONS

O2+M<=>2O+M                              3.610E+18   -1.000  117968.40

   REV/ 3.01E+15    -0.500    0.00/

O2/ 9.00/ N2/2.00/ O/ 25.00/ N/ 1.00/ NO/ 1.00/ 

.....

end

 

Thanks,

Qinq

abenhadj posted this 14 January 2019

Let me check and come back to you. I will update you asap.

Best regards,

Amine

kzqing posted this 16 January 2019

Hello Amine,

Have you got any update? My research can't get further because of the problem. Hope you can help me soon.

Thanks,

Qing

abenhadj posted this 16 January 2019

I will update you soon.

Best regards,

Amine

kzqing posted this 31 January 2019

Hello Amine,

May I ask if you find a solution yet?

Thanks,

abenhadj posted this 01 February 2019

No still working on that. Might take some time.

Best regards,

Amine

abenhadj posted this 18 February 2019

The problem has been resolved.

Best regards,

Amine

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