EDEM-Fluent coupling

Dr_Sam

I am encountering an issue while performing an EDEM-Fluent coupling simulation. EDEM shuts down automatically and Fluent provides the following error message:
The fl process could not be started.

I have used Particle Replacement API and save the input.dem. The API 3 files also locate in the same folder but after some simulations the EDEM showed message that the plug in factory tried to create the particle of type that does not exist. I am using EDEM 2022.1

Thank you

===================================================================================
= BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
= RANK 0 PID 83680 RUNNING AT Sam
= EXIT STATUS: -1 (ffffffff)===================================================================================
= BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
= RANK 1 PID 85612 RUNNING AT Sam
= EXIT STATUS: -1 (ffffffff)===================================================================================
= BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
= RANK 2 PID 83240 RUNNING AT Sam
= EXIT STATUS: -1 (ffffffff)===================================================================================
= BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
= RANK 3 PID 81412 RUNNING AT Sam
= EXIT STATUS: -1 (ffffffff)===================================================================================
= BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
= RANK 4 PID 85900 RUNNING AT Sam
= EXIT STATUS: -1 (ffffffff)===================================================================================
= BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
= RANK 5 PID 88020 RUNNING AT Sam
= EXIT STATUS: -1 (ffffffff)

Stephen Cole

Hi, if you run the simulation with EDEM alone does it run OK? It seems like the coupling may be failing as the custom model is failing to create the material.

I'd try to confirm if that is the case and look at hte settings for the replacement options, typically this is replacing particles by name and the name in the .txt file should match the ones in the EDEM Creator.

Regards

Stephen

Dr_Sam

Thank you for your response.

Yes, when I run the simulation in EDEM alone, it works perfectly fine. I have also cross-checked the material names in the text file and the EDEM bulk material, and they are identical.

358
0.395
10
Whole
Fraction

Stephen Cole

Could you check that the simulation hasn't failed prior to the errors been shown, for example if the simulation was unstable and the particles removed it may have caused this issue.

Also are there any other error messages shown, in the EDEM dialogue box the Plugin Factory warning is the last message in the list, if you scroll up in the dialogue box is there an earlier message that is different?

Regards

Stephen

Dr_Sam

Thank you for your response.

When I start the coupling simulation, I receive the initial warning stating:

• Deprecated Feature: Bonding in EDEM 2022.0 will be removed in future releases.
• External Force: API models using version 3.1.0 or older will not receive forces from other models.

After running for some iterations, the simulation fails, and the error related to the Factory Plugin appears repeatedly:
"Plugin factory tried to create a particle of type that did not exist."

I am using EDEM 2022.1, and I suspect that the issue might be linked to the particle types not being correctly recognized or replaced during the simulation.

Regarding my query:
I attempted to use particle cluster data to create a meta-particle. However, bonding was not created successfully, and the particles scattered. Could you confirm if particle cluster data can be used for meta-particle creation? Additionally, what is the recommended method for defining bonding in EDEM 2022.1 to ensure meta-particle integrity during coupling simulations?

Looking forward to your suggestions on resolving the coupling failure and guidance on meta-particle bonding.

Stephen Cole

Hi, you can use the cluster data to create a meta-particle, the cluster data is just a set of positions originally exported from EDEM so these can be copped and pasted into the EDEM GUI if required.

Bonded particels exploding tend to be time-step related.

The replacement tutorial is currently using the latest 2024.1 version which should resolve the issues you see:

https://community.altair.com/csm?id=kb_article_view&sysparm_article=KB0037689

Dr_Sam

Thank You for you response. I will try to use this.