Changing rho in settlingTest case

Submitted by tianxiong_Zhao on Fri, 09/09/2022 - 11:51

Hi,
I found that the rho in settlingTest case is 10, and when I simply change it to 1000 which is supposed to be the density of water, the motion of particle becomes very unnature. The velocity becomes unrelastic large.

I found that this might be related to the drag force model, cause when I comment the force model de felice, and only keep the Archimedes force, the result seems to reflect correctly to the change of fluid density.

Could someone help with this question. Am I misunderstanding something about rho?