Has anyone succesfully computed view factors in a 2D geometry yet? I have tried to follow this blog: https://www.comsol.com/blogs/computing-view-factors-with-the-heat-transfer-module/, but when trying this within a square cavity, I get either errors or zeros with the used function from the blog.
Sharing your succesful model or steps for implementation would be appreciated a lot!
Kind regards,
Marvin