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COMSOL doesn’t use temperature function as Boundary Condition
Posted 9 août 2017, 06:10 UTC−4 2 Replies
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Hi friends,
I built a simple 3-d model for heat & moisture transport in porous media. I defined a piecewise function pw1(t)= 288.15[k] – t[s]/480 for all of 6 boundaries, a time-dependent function.
The initial temperature is 288.15[k], consistent with boundary condition in t=0.
But the function is displayed in orange (warning) - See the image and mph file,
and after about 30 minutes studying, COMSOL didn’t use the function at all, and the temperature in all points remain 288.15 unchanged.
Welcome to any intelligent idea!
I built a simple 3-d model for heat & moisture transport in porous media. I defined a piecewise function pw1(t)= 288.15[k] – t[s]/480 for all of 6 boundaries, a time-dependent function.
The initial temperature is 288.15[k], consistent with boundary condition in t=0.
But the function is displayed in orange (warning) - See the image and mph file,
and after about 30 minutes studying, COMSOL didn’t use the function at all, and the temperature in all points remain 288.15 unchanged.
Welcome to any intelligent idea!
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2 Replies Last Post 9 août 2017, 10:05 UTC−4
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Posted:
7 years ago
Hi
remove the units from the equations and insert them in the corresponding fields below, see attachment.
BR
Lasse
remove the units from the equations and insert them in the corresponding fields below, see attachment.
BR
Lasse
Attachments:
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Posted:
7 years ago
Dear Lasse,
Thanks a lot. It perfectly works.
Thanks a lot. It perfectly works.