Solar Analysis for Curved Surfaces

Hello. I would like to perform a solar radiation analysis for a curved arch with openings, as shown in the image below.

However, I received an error stating that the openings are not in the same plane as the curved arch.

I believe the cause is that the mesh is generated based on the finite element method, which prevents the pure curved surface from being accurately reproduced.

I would appreciate your guidance on how to model the curved arch without creating a mesh.

Note: The openings were created by subtracting a sphere from the curved arch.

I suspect, but not 100% sure and I think @MingboPeng could confirm, that this is because Energy+ cannot work with curved surfaces. You need to abstract it to planar surfaces.

Hi.

For a solar radiation analysis, you dont need E+, rooms etc.

You just grid it, using LB grid component, taking care that the normals are outwards. And then run an annual radiation study.

Yours,
LittleBuddha.

A quick and easy solution, without reflections, is the LBT example file for radiation study.

Or a better solution, is to run a radiance based annuall irradiance study based on the Honeybee gridbased example file but replacing PIT with annual irradiance, bypassing the need for a E+ model by just drawing a box as a model. And using the custom grid.