I would like to ask a question regarding thermal analysis in the Coupled Eulerian–Lagrangian (CEL) approach in Abaqus.

I want to apply a surface heat flux on the Lagrangian body. However, once the material is defined within the Eulerian section, the original Lagrangian section becomes suppressed. As a result, it seems that the heat flux must instead be applied to the Eulerian body.

My concern is that the top region of the Eulerian domain initially contains void. In this situation, how can I correctly apply the surface heat flux to the material surface during the CEL analysis?

I would greatly appreciate your guidance on this matter.

Thank you very much for your time and support.