Minimum Grid Layers for Accurate Pseudo-2D Simulation using MFIX-TFM

Hello, everyone,

I hope this message finds you well. I’m currently working on simulating a fluidized bed using MFIX-TFM, and I have a question regarding the minimum number of grid layers in the thickness direction for a pseudo-two-dimensional (2D) simulation.

As we all know, 3D simulations provide more accurate results compared to 2D simulations, but they come with a significant computational cost. For a 2D pseudo simulation, I’m curious to know how many grid layers in the thickness direction (usually the z-direction) are sufficient to ensure numerical accuracy without compromising too much on computational resources.

Could anyone share their experience or insights on this matter? Any guidelines or rules of thumb would be greatly appreciated.

Thank you in advance for your help!

Best regards,