B Sample Cyclone Scaling Calculations

1 Calculating the Inlet Velocity in a Scale Model Required for 

Determine the velocity at which we would have to operate a 6 (152 mm) diameter model cyclone to obtain Reynolds number similarity to a 48 (1220 mm) industrial cyclone. 

Herein, the subscript m refers to the model, no subscript to the prototype. 

Although the 1.2 m diameter cyclone used in the preceding example may seem rather large, many industrially important processes utilize cyclones of at least this size. Some are as large as 4 m or 13 feet. 

2 Predicting Full-Scale Cyclone Performance using a Scale 

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