Skin Effect Visualized - Physics Behind Induction Heating

In this video I will explain fundamental behind induction heating and introduce you to skin-effect. Skin effect - is non-uniform distribution of an alternating electric current or magnetic field inside conductor which results in greater density of current ( or magnetic field) near surface of the conductor. Practically this effect is very important in context of induction heating.
All of the calculations were done with aluminum properties, mainly conductivity of 3.7 * 10^7 S/m is chosen.

Calculations and animation were performed with Comsol Multiphysics and Mathematica software.

Responsible for artwork design: Antra Gaile
Video is made by Reinis Baranovskis

Intro 0:00
Theory 0:18
Numerical model 2:26
Skin effect 3:24
Skin depth 4:38
In next video 5:14

Видео Skin Effect Visualized - Physics Behind Induction Heating канала MHD Technology Laboratory