How to draw a spiral structure in COMSOL + how to assign colours to domains and boundaries in COMSOL

In this video I show you how to create a spiral structure in COMSOL and also i show you how to assign different colors to domains and boundaries. For a master thesis project we want to make a HVDC source based on wireless power transfer. We therefore needed to make a spiral structure to hold the litz wire and hence we could create a pancake coil. Talented master student, Suraj has created this structure in another 3D software and we 3D printed it. I then decided to make the same directly in COMSOL. To do so, first I explain a bit about spiral equation. We then use this information to create a programmatic curve to draw the spiral. https://en.wikipedia.org/wiki/Archime... http://www.mathematische-basteleien.d... Work life balance has these days become a dream. no time even to make Youtube videos. But future is bright and I stay positive. Finance: N=69 subs=2857 Available budget (N): 2857-100-69*(69+1)=-2073 Storage limit: 2^ln(2857)=248,57