Hi everyone,
I am currently working on a CFD-DEM coupling simulation of particles separation, which involves two different materials.
I am encountering a critical crash during the initialization phase of the coupling specifically when multiple Bulk Materials are defined in EDEM.
Here are my environment details and the exact issue:
1. Software Environment
- EDEM Version: Altair EDEM 2025
- CFD Version: Ansys Fluent 2021 R2
- Coupling Interface: I compiled the C source code (UDFs) provided for EDEM-Fluent coupling (using Visual Studio 2022 x64 Native Tools). The compilation is successful without errors (Done.).
2. The Problem Description
When I set up the EDEM model with only ONE Bulk Material, the coupling works perfectly. The edem-injection is created, and the simulation runs smoothly.
When I attempt to run the coupling with Two Bulk Material, the connection is established successfully, but Fluent crashes immediately when trying to create the injections for the particles.
Error Logs:
Injection "edem-injection-" has been created for EDEM particles.
The fl process could not be started.
3. Request for Help
- Is there a known bug or limitation regarding multiple materials in the EDEM-Fluent coupling interface for EDEM 2025?
- Could you please provide the latest, officially supported EDEM-Fluent coupling source code (.c / .h files) that is fully compatible with EDEM 2025's multi-material data structure?
Thank you!
