[Gmsh] Spiral coil?

Mj AJ croucrou1213 at gmail.com
Tue May 29 16:41:35 CEST 2018

First of, many thanks to all the peoples that contributed to Onelab

I'm modifying the inheat.geo file example to create a spiral coil and
instead of calculating inductance, I'll calculate the magnetic field. But
first the geometry.

I've modified the extrusion to
 tmp[] = Extrude {
{-Cos((j-1)*Pi/2)*(ws+rc*2)/4,-Sin((j-1)*Pi/2)*(ws+rc*2)/4,0}, {0,0,1} ,
{0,0,0} , Pi/2} { Surface {tmp[0]};};

However this gives fragmented pieces (see image). How would you make a
spiral coil?

Best regards,

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