Learning Forum

[KhoangKyong_NGUEN]

Hello,

I am doing the chemical reaction model. I have Pre-exponential factor ( 1.36e+43 1/s ) and Activation energy (312000 J/mol) for my reaction. But when I put these values, Ansys says that the maximum Pre-exponential factor is 1e+38 only. (Pictures below)

[Rahul Kumar]

Hello This is not a limitation, this the range in which the pre-exponential parameter is defined.

[KhoangKyong_NGUEN]

Wonderful. Thank you very much! You just said what I already knew.
I can repeat my question if you want. My question is How to fix this problem? How I can put my value in here?

[Rob]

You can't, it's outside the permitted range for the solver.
It may be possible with a UDF based reaction, but I'd be questioning why the factor was so high.