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What is the physical significance of scaling factor used while coupling? For ex- if I increase or decrease the particle radius by 100 times then, what value should I put in scaling factor tab?
Hi,
I can't find the post I wrote on this a few years ago, looks like it'll need recreating, but if your 'real' particles have a diameter of 2.5mm, and you take a coarse graining approach to simulate your particles at 25mm, you would enter a scaling factor of 10. This factor is required to ensure the forces on the scaled-up particles are consistent with the scenario they are aiming to model, i.e. in my example the 25mm particles should act like a clump of 2.5 mm particles.
Cheers,
Richard
Hi, I can't find the post I wrote on this a few years ago, looks like it'll need recreating, but if your 'real' particles have a diameter of 2.5mm, and you take a coarse graining approach to simulate your particles at 25mm, you would enter a scaling factor of 10. This factor is required to ensure the forces on the scaled-up particles are consistent with the scenario they are aiming to model, i.e. in my example the 25mm particles should act like a clump of 2.5 mm particles. Cheers, Richard
I'm currently trying to simulate a close-packed bed. Due to the extremely small size of the actual particles, I need to apply a coarse-graining approach to reduce the computational cost.
However, I'm having some trouble with the exact setup. Specifically, I can't seem to find where to actually input or configure the scaling factor in the software (I'm currently using EDEM-Fluent).
Additionally, could you advise on how to properly calibrate the material parameters to account for this scaling factor once it's set?
Any advice or pointing me to the right settings would be greatly appreciated. Thanks in advance!
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