Help with warning "Computation of MultiComponent Boiling Temperature..."

tisa · May 23, 2018, 05:44

Hello together,

does anyone know what setting I need to change, that the below warning is fixed?

Warning: Computation of "MultiComponent Boiling Temperature" has been aborted in 10515 cells as saturation pressure does not increase monotonically with temperature. This indicates that critical temperature is reached.

I'm using the following models and think its either the Fluid Film and/or the Multiphase Interaction model:

Fluid Film
Lagrangian Multiphase (Spray)
Multi-Component Gas
Multiphase Interaction

I am grateful for any help.

Greetings, tisa

tisa · May 24, 2018, 04:07

Hello together,

I found the solution myself. I got some settings of my materials in the film model wrong. After correcting those, everything was fine.

Greetings, tisa

khal · November 29, 2018, 05:54

Could you please let me know what settings did you change to fix this warning?
I am having the same problem with my simulation.

tisa · December 3, 2018, 06:14

Quote:

Originally Posted by khal

Could you please let me know what settings did you change to fix this warning?
I am having the same problem with my simulation.

The polynomials of the materials were set to °C (because of my preferred unit), but the numbers of those polynomials were meant for K. So i changed °C -> K and everything was fine.

khal · December 3, 2018, 21:44

Thank you for letting me know.
I have also found the solution to my problem.
For others' reference, I have changed the default value of the saturation pressure for the film phase. I used the Antoine Equation with the correct coefficients (not the default) for my fluid and flow conditions.

May 23, 2018, 05:44	Help with warning "Computation of MultiComponent Boiling Temperature..."	#1
tisa Member Join Date: Dec 2017 Posts: 44 Rep Power: 9	Hello together, does anyone know what setting I need to change, that the below warning is fixed? Warning: Computation of "MultiComponent Boiling Temperature" has been aborted in 10515 cells as saturation pressure does not increase monotonically with temperature. This indicates that critical temperature is reached. I'm using the following models and think its either the Fluid Film and/or the Multiphase Interaction model: Fluid Film Lagrangian Multiphase (Spray) Multi-Component Gas Multiphase Interaction I am grateful for any help. Greetings, tisa Last edited by tisa; May 23, 2018 at 05:45. Reason: fixing

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May 24, 2018, 04:07		#2
tisa Member Join Date: Dec 2017 Posts: 44 Rep Power: 9	Hello together, I found the solution myself. I got some settings of my materials in the film model wrong. After correcting those, everything was fine. Greetings, tisa

November 29, 2018, 05:54		#3
khal New Member Khilz Join Date: Jul 2018 Posts: 7 Rep Power: 8	Could you please let me know what settings did you change to fix this warning? I am having the same problem with my simulation.

December 3, 2018, 21:44		#5
khal New Member Khilz Join Date: Jul 2018 Posts: 7 Rep Power: 8	Thank you for letting me know. I have also found the solution to my problem. For others' reference, I have changed the default value of the saturation pressure for the film phase. I used the Antoine Equation with the correct coefficients (not the default) for my fluid and flow conditions.