3D Crouzeix-Raviart (P1nc3d) in FreeFEM?

Dear all,

I hope this message finds you well.

I am currently working on a 3D numerical simulation that requires the use of the Crouzeix-Raviart finite element (non-conforming P1) on tetrahedral meshes. I am aware that FreeFEM natively supports P1nc for 2D problems, but I can’t find the 3D version.

Does a community plugin exist for this, or any known workaround? Thank you very much for your time and for sharing your expertise.

Best regards,

PegasusZhang