reacf
I have not found the mathematical formula for the "reacf" operator. What is it? Another issue: When I integrate "Current density norm" = ec.normJ or reacf(V) over an insulating surface, I get a nonzero...
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Hi I agree, I haven t seen the exact math equation for reacf() anywhere, probably there are several variants depending on the physics, but normally it's quite precise and works OK. Now, again depending...
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HI Thanks for the prompt reply. I just wondered what reacf or ec.normJ are. One cannot use anything which she/he does not understand. I agree that numerical calculation of gradients is a challenge, but...
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Hi turn on the equation view (Options preferences) and look at the definition of the COMSOL internal variables, in this cas it is the norm (sqrt(Jx^2+Jy^2+Jz^2)) of the current density, the formula is...
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Thank you. I have equation view switched on, but I do not see that; never mind. Lasse
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Hi I find it nicely in my 4.3 ;) But reacf() is internal programming, that I do not know where is -- Good luck Ivar
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Integrating the normal current density over an insulating surface should give zero as you expect. However, if you integrate the norm (magnitude) of the current density it should not be zero. That’s...
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