Learning Forum

[youssef.badran]

Hello,

I am trying to simulate wet grinding using Rocky 2024 R2, but I encountered the following error:

Does this mean it is not possible to simulate a system with both liquid and particle breakage in Rocky?

What are the available options for modeling such a system? If this is not currently supported in Rocky, would coupling Rocky with Fluent be a suitable approach to simulate wet grinding?

[Lucas Bertollo Baggio]

Hello,

 

It is not possible to simulate SPH with particles breakage. There's no limitation on simulating particles breakage with CFD Coupling. It depends on your application, but it might be a good option. 

 

 

[youssef.badran]

Thank you very much for your response. I would try to couple Rocky with Fluent to simulate wet grinding.

[youssef.badran]

Hello,

I attempted to couple Rocky 2024 R2 with Fluent 2024 R2 using the following steps:

Through the Rocky interface, I selected Help -> Tutorial Workshops -> 14.Tutorial - Fluidized Bed -> Downloaded the dem_tut14_files.zip file from
section 14.1.5.

Then, from Rocky interface, File -> Open project -> selected the file tutorial_14_B_pre-processing-restart.rocky in dem_tut14_files\dem_tut14_files\tutorial_14_B_pre-processing\

Then in the Data panel in the Rocky interface, I clicked on solver and then from the Data Editors panel I clicked on start. This opened Fluent automatically and the simulation started successfully, coupling Rocky and Fluent 2024 R2.

I then modified the test case by changing the particle shape to polyhedral and enabling breakage for the particles. However, when I run the simulation with breakage activated, the Rocky interface closes and the software crashes. Simulations without breakage run without issues, so the problem appears to be related specifically to breakage.

Could you please advise how to resolve this issue in order to simulate wet grinding?