Cunningham Correction factor for Particle tracking -- CFD Online Discussion Forums

December 9, 2008, 09:52	Cunningham Correction factor for Particle tracking	#1
John O'Brien Guest Posts: n/a	I am trying to track small particles in CFX. When the particle Reynolds number is between 0.1 and 1000 it is recommended to use the Schiller drag model. When modeling small particles (less than 10 micron) the particle slip velocity must be taken into account, and a correction factor based on the particle diameter called the Cunningham correction factor is used to modify the particle drag. Is the Cunningham slip model accounted for automatically for small particles in CFX, it is not mentioned in the help? If not how can it be implemented? Any help on this one would be great Thanks

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