SIMPLIFIED DESCRIPTION OF THE FLOW
IN A DIAMETRAL DISK FRICTION PUMP
S. V. Dolgushev and S. V. Khaidarov

UDC 621.4./6:533.6

Using a simplified model, the authors considered the 
flow in the gap of a diametral disk friction pump; they obtained the 
parametric dependences of the radial profile of the circular velocity 
on the circular gradient of pressure and the velocity of the secondary 
flow. The velocity of the secondary flow was evaluated by the average 
value, known from experiment, of the circular pressure gradient in 
the interdisk gap based on the best agreement between these distributions.

Institute of Theoretical and Applied Mechanics, Siberian 
Branch of the Russian Academy of Sciences, Novosibirsk, Russia; email: 
do1g@itam.nsc.ru, serega@itam.nsc.ru. Translated from Inzhenerno-Fizicheskii 
Zhurnal, Vol. 74, No. 3, pp. 151-154, May-June, 2001. 
Original article submitted December 7, 1999; 
revision submitted October 16, 2000.

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