Radiation in AcuSolve–EDEM coupling (2026): particle–wall interaction?

Question

Hello,

I have been working through the tutorial ACU-T 6103: AcuSolve–EDEM Bidirectional Coupling with Heat Transfer. In my case, particles are in contact with a hot wall (~600 K), and I would like to include radiative heat transfer effects on the particles.

I noticed in the AcuSolve 2026 release notes that a new feature has been introduced to account for radiation between particles in the EDEM–AcuSolve coupling.

I have a couple of questions:

* Does this new radiation feature also account for radiation exchange between particles and surrounding geometry (e.g., walls), or is it limited to particle–particle interactions only?
* If particle–wall radiation is not included in this feature, what would be the recommended approach to model it?
* Are there any tutorials or example cases demonstrating radiation modeling in coupled AcuSolve–EDEM simulations?

Any guidance would be greatly appreciated.

Thank you!

acupro · Answer

To my understanding, there is no particle-wall radiation available with the EDEM-Acusolve coupling nor in EDEM itself.  You could include enclosure radiation within Acusolve itself - just the surface-to-surface effects.  (Or maybe even one of the participating media models.)  The overall heat transfer calculation may have some conduction/convection temperature effect, but any potential radiation effects on the particles themselves (outside of the particle-particle radiation) would not be captured.

The particle-particle radiation development in the EDEM-Acusolve coupling has not developed into any tutorials/workflows.

Yangyang_Shen · Answer

Can anyone please clarify …

Does the new radiation model in AcuSolve 2026 include particle–wall radiation, or only particle–particle?

Or is it possible that particle-wall radiation is handled implicitly by defining a radiating hot wall in AcuSolve, with particles in EDEM receiving it through the coupling?

Thanks!