If you are dealing with joule heating, I would recommend using Icepak's joule heating simulation. This method has been proven to be highly accurate, as we have validated it through experiments and hand calculations.
From my investigation, it seems that the two-way coupling method in AEDT is currently not defined for transient mode, as I mentioned in my previous post. You may refer to that for more information.
/forum/forums/topic/in-2-way-coupling-how-we-can-identify-the-correct-value-of-coupling-iteration/
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