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Getting quotient of 2 variables from two seperate studies

Posted 21 août 2019, 21:07 UTC−4 Acoustics & Vibrations Version 5.2 4 Replies

Lorenzo Casero
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Hello, Im running two seperate studies and im trying to find the transmittance of the model. To do this i need to divide the total pressure of a SPECIFIED domain in each solution. Im able to easily extract the data i need using Derived Values -> Surface Integration then plugging in my pressure expression for the specified domain in each solution and finally exporting this data to microsoft excel and dividing column by column and plotting this. Is there a way to divide the data and plot it all in comsol 5.2? Any help would be greatly appreciated.

4 Replies Last Post 22 août 2019, 14:28 UTC−4
Edgar J. Kaiser Certified Consultant
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Posted: 5 years ago 22 août 2019, 13:00 UTC−4

Lorenzo,

there are probably different ways to do that. You may want to check the documentation for 'Join' (not sure if they existed in 5.2?) datasets and for the with() and withsol() operators.

Cheers Edgar

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Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Lorenzo, there are probably different ways to do that. You may want to check the documentation for 'Join' (not sure if they existed in 5.2?) datasets and for the with() and withsol() operators. Cheers Edgar
Lorenzo Casero
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Posted: 5 years ago 22 août 2019, 14:04 UTC−4

Hi Edgar, Thanks for the reply. ive been using the join dataset but i couldnt make it for a specific domain. where can i find the withsol operator in comsol?

Hi Edgar, Thanks for the reply. ive been using the join dataset but i couldnt make it for a specific domain. where can i find the withsol operator in comsol?
Edgar J. Kaiser Certified Consultant
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Posted: 5 years ago 22 août 2019, 14:09 UTC−4
Updated: 5 years ago 22 août 2019, 14:10 UTC−4

It is in the documentation with a couple of examples - very useful! I think you can also find blog contributions.

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Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
It is in the documentation with a couple of examples - very useful! I think you can also find blog contributions.
Edgar J. Kaiser Certified Consultant
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Posted: 5 years ago 22 août 2019, 14:28 UTC−4

Lorenzo,

withsol() can be used in postprocessing in any expression as long as the solution you are addressing exists. Please keep this in the forum, there is no need to this in private.

Cheers Edgar

-------------------
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Lorenzo, withsol() can be used in postprocessing in any expression as long as the solution you are addressing exists. Please keep this in the forum, there is no need to this in private. Cheers Edgar

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