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Heat source

Posted 25 ott 2012, 04:30 GMT-4 Heat Transfer & Phase Change Version 4.2 2 Replies

Gaetano Bazzano
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Hi all,
I have a model composed of three layers, three different materials.
How could I insert a triangular power profile(as heat source) in the second domain.
Example of power profile ( t=0s P=0w; t=1us P=10Kw; t=100us P=0w)
thanks a lot
Gaetano
2 Replies Last Post 7 nov 2012, 06:46 GMT-5
Hannah Harding
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Posted: 1 decade ago 1 nov 2012, 07:05 GMT-4
Hello,
I am pretty new to COMSOL but I think you could solve this using a piecewise function

Have one interval start at 0 end at 1 with the function 10*x
Have the second interval start at 1 and end at 100 with the function ((-10/99)*x)+(10+(10/99))

The argument x would have units of us

Then when you are defining your power, multiply by the piecewise pw1(t) (correcting the units: pw1(t[1/s]))
Hope this is of some help
Hello, I am pretty new to COMSOL but I think you could solve this using a piecewise function Have one interval start at 0 end at 1 with the function 10*x Have the second interval start at 1 and end at 100 with the function ((-10/99)*x)+(10+(10/99)) The argument x would have units of us Then when you are defining your power, multiply by the piecewise pw1(t) (correcting the units: pw1(t[1/s])) Hope this is of some help
Gaetano Bazzano
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Posted: 1 decade ago 7 nov 2012, 06:46 GMT-5
Hi Hannah,
sorry for late feedback, i will implement soon your solution.
thank you very much
ciao
Gaetano

Hi Hannah, sorry for late feedback, i will implement soon your solution. thank you very much ciao Gaetano

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