Abstract
Theoretlcal and experimental studies on discharge coefficient of a small nozzle in centrifugal field were carried out, and its result was employed to determinc angular velocity of liquid which flows between discs of a disc-type centrifuge.The results obtained were summarized as follows:(1) The discharge coefficient based on the experimental results is calculated by:(2) The discharge coefficient in centrifugal field is identical with that in gavitational field concerning the same nozzle.(3) In the case of high Reynolds number above 3, 000, the discharge coefficient is considered to be nearly constant.(4) The average angular velocity of liquid which flows between discs through a nozzle with a known discharge coeffiiient is expressed by:(5) The angular velocity of liquid between discs is considered to be approximately equal to the angular velocity of a bowl, independently of the flow condition, number of revolution of the bowl and distance between the two adjacent discs.
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