I've got a short question on meshing with GMSH. I'm trying to model a Karman vortex street and would like to use a sphere instead of a cylinder. However, I do not seem to find any example showing boolean-type operators (intersection, union, difference) and did not find an entry in the gmsh manual either.

Looking at the definitely more elaborate showcases here on the website, I was wondering whether anyone could give me a hint.

Thank you!

I would do it the hard way, as I'm not very familiar with the boolean-type operators.

especially when vortex streets are the goal then the layers next to the sphere should be as nice as possible. well what is the hard way? start with a logical cube which will become the sphere surface (have a look at the circles in the 5th tutorial). then add a layer to it. finally go all the way with blocks to the model boundaries. all of this written as an editable script of course

Enjoy!

Thank you for your quick reply! Looks like there is some work ahead.