June 27, 2022 at 4:57 pm
Karthik R
Administrator

Hello,

Is this a boundary between areas A and B? Wall condition? Or is this an interface? Could you please add an image so we can understand?

You are right - you cannot specify both Flux and Value at the same time. If you are looking for a macro to estimate the flux at a specific boundary, you can use F_FLUX.

2.8.3. DEFINE_UDS_FLUX (ansys.com) 

Thank you.

Karthik