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Created by
user-ec56f, last updated on Feb 27, 2008
1 minute read
If we also assume that all particles are nearly spherical and move slowly enough that stokes flow (Re=O(0.1)) can describe the motion of the particles, the critical settling velocity can be further simplified to the following:
2 Comments
user-9c36d
Mar 19, 2008Check the Reynolds number! The low Re assumption is okay for very small flocs, but it doesn't work for much of the size range of interest. You can check my notes on the flocculation model to see the need to use coefficient of drag equations based on the transition region between laminar and fully turbulent.
Anonymous
Jan 23, 2015