geometria

Hello, everyone! I just started using comsol 5.5 and I was assigned this problem to solve. I have a soil, which is invested by a cylindrical radiation and perpendicular to the soil itself. I want to put a point source on the ground. this source and so also the soil, are in contact with the air...

good morning to all boys, I am struggling with a relatively simple problem but to which I can't reach a solution, I have simple two-dimensional geometries of which I have to get the center (with the cnc machine I just have to make a single central and not perimetric pass) and I don't know how to...

hello to all, I will explain to you my problem: I have three concentric rings (circonferences), I have to meshare the two exteriors with mesh mapped and the inner one with mesh free. 1) as I tried before, I couldn't make sure that it meshasse only the internal one in a free way, but it did all...