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Reply To: Effect On Particle Due to Fluid Density Change

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October 22, 2024 at 1:29 pm #9397
Christoph
Moderator

Dear Jijo,

the error in results of various forcing schemes was investigated by Trunk et al. with a case of a single settling sphere in https://www.mdpi.com/2079-3197/9/2/11 . In this paper they found an error of 5 to 8% in the cases they studied when using the Guo forcing scheme.

The DKT2d case is more suszeptible to differences in the forcing scheme, as the settling spheres interfere with each other. This likely causes the large discrepancies you found.

Best regards,
Christoph