On the stability condition and the fine resolution setting

How to use openEMS. Discussion on examples, tutorials etc

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thinkless
Posts: 11
Joined: Wed 22 Sep 2021, 04:27

On the stability condition and the fine resolution setting

Post by thinkless » Mon 22 Nov 2021, 05:03

In line 97 of the tutorial script RadarUWBTutorial, the fineResolution is set as
fineResolution = C0 / (f_0 + f_c) / sqrt(substrate.epsR) / unit / 40;
The stability condition of the traditional FDTD is as in the attachment. I know the fine resolution has to do with the stability condition, but how exactly is the fine step size determined?
Attachments
stability condition.jpg
stability condition.jpg (193.59 KiB) Viewed 77 times

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