Learning Forum

[ha_nguyen3]

I want to calculate an average electric field of an object and determine the percent of the object's volume having E field above 1V/cm. What are equations that I should use? And how do I set up in Calculator?

For instance, I have a cylinder with a diameter of 5mm and a height of 5mm. A range of E fields varies from 0.4-1.5V/cm.

[AndyJP]

there are various ways. https://en.wikipedia.org/wiki/Average, you have to choose which you like.
Averaging is usually done in Field Calculator using integration function.
Smoothing is more sophisticated thing. Simple smoothing around mesh vertices is made with "smooth" command in the FieldCalc.

[ha_nguyen3]

I found this tutorial is quite helpful - https://www.youtube.com/watch?v=UvJB1MAgRUU. It's for finding magnetic field (B field), but I think I can do the same for E field.

Could you please elaborate on more about "smooth"? Does it provide more accurate result than integration? If so, how do I apply it?
Thanks.

[AndyJP]

no, it is not integration or averaging. but it smoothes field fluctuations and spikes at the mesh nodes. So when you feel that the model has acceptable convergence, but too coarse field picture, apply smooth to E, and H before using these tensors in math.