[akaobi]

Hello star CCM+ community, can someone out there be having an idea on the cause of these two issues in star CCM+.

I have a 3D model with air surrounding a membrane of aligned fibers. On this I have a velocity inlet, pressure outlet, symmetry sides and my membrane clearly defined as a wall. I'm trying to run a two-way coupled CFD-DEM simulation.

However;
1. In the visualization scene created, particles can be be seen going through fibers. Instead according to the particle-particle and particle-wall interaction settings used, I would expect them to stick on colliding with the fiber to form some progressive surface buildup. (I have managed to get this with one-way coupling).

2. Also, sub-stepping is active on every iteration unlike in one way coupling where it happens once every time step. This makes the simulation process very very slow.

I appreciate a lot

[Mahmoud Abbaszadeh]

Originally Posted by akaobi

Hello star CCM+ community, can someone out there be having an idea on the cause of these two issues in star CCM+.

I have a 3D model with air surrounding a membrane of aligned fibers. On this I have a velocity inlet, pressure outlet, symmetry sides and my membrane clearly defined as a wall. I'm trying to run a two-way coupled CFD-DEM simulation.

However;
1. In the visualization scene created, particles can be be seen going through fibers. Instead according to the particle-particle and particle-wall interaction settings used, I would expect them to stick on colliding with the fiber to form some progressive surface buildup. (I have managed to get this with one-way coupling).

2. Also, sub-stepping is active on every iteration unlike in one way coupling where it happens once every time step. This makes the simulation process very very slow.

I appreciate a lot

Hi akaobi,

Have you found an answer to your question?

Best Wishes,
Mahmoud