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Update solution in LiveLink for MATLAB

Posted Jul 7, 2020, 10:40 a.m. EDT LiveLink for MATLAB Version 5.5 2 Replies

Björn Zaar Fusion plasma physics
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Hi!

I'm currently developing a model using LiveLink for MATLAB, but I've run into some trouble. After I have solved my model, I need to extract the solution (the electric field) to compute the absorption in MATLAB. I then save the absorption to a txt file and import it back into COMSOL. All this works nice and and well, but when I then want to make a variable of this absorption, I need to update the solution. Is there a way to do so easily with LiveLink? I have looked in the User's guide, but I haven't found anything about this. Any ideas?

Best, Björn

2 Replies Last Post Jul 16, 2020, 5:20 a.m. EDT
Alexandre Arsenault
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Posted: 4 years ago Jul 7, 2020, 1:51 p.m. EDT

Hi Bjorn,

It seems like not all commands are described in the documentation. However, one method I found to determine the Matlab commands I need is to first configure the Comsol GUI for a simple case, then save the Comsol file as a Matlab file. You can then see all the necessary commands that Matlab uses to configure Comsol.

In your case, to update sol1, you would need to do: model.sol('sol1').updateSolution;

Cheers,

Alex

Hi Bjorn, It seems like not all commands are described in the documentation. However, one method I found to determine the Matlab commands I need is to first configure the Comsol GUI for a simple case, then save the Comsol file as a Matlab file. You can then see all the necessary commands that Matlab uses to configure Comsol. In your case, to update sol1, you would need to do: `model.sol('sol1').updateSolution;` Cheers, Alex
Björn Zaar Fusion plasma physics
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Posted: 4 years ago Jul 16, 2020, 5:20 a.m. EDT

Hi Alex,

Thanks for your advice, it worked perfectly!

Best, Björn

Hi Alex, Thanks for your advice, it worked perfectly! Best, Björn

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