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Why the results from 3.5 and 4.3 are so different?

Posted 4 nov. 2013, 14:42 UTC−5 RF & Microwave Engineering Version 4.3 1 Reply

Yue Qu
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I am doing simulation on 3.5 and 4.3. With almost the same setting. The results from these two versions are totally different. Which one shall I trust?
1 Reply Last Post 7 nov. 2013, 09:31 UTC−5
Robert Koslover Certified Consultant
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Posted: 1 decade ago 7 nov. 2013, 09:31 UTC−5
Well, if that happened, I wouldn't trust either one until I compared the detailed boundary conditions, meshes, and more. And I would try finer meshes and higher order elements, if I had enough memory. And you might even try a fiducial problem (i.e., one where you know the solution analytically) and compare the two to what you know in advance is the right answer. Good luck.
Well, if that happened, I wouldn't trust either one until I compared the detailed boundary conditions, meshes, and more. And I would try finer meshes and higher order elements, if I had enough memory. And you might even try a fiducial problem (i.e., one where you know the solution analytically) and compare the two to what you know in advance is the right answer. Good luck.

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