MODEL OF TURBULENT OSCILLATING FLOWS IN SMOOTH TUBES
R. G. Galiullin,a L. A. Timokhina,a
E. R. Galiullina,a and E. I. Permyakovb

UDC 532.517.4; 534.213

Turbulent oscillating flows in smooth tubes are considered. 
A group of flows in which the logarithmic boundary layer grows monotonically 
with time is distinguished; the conditions of quasistationarity of 
these flows are determined. A model of a quasistationary turbulent 
oscillating flow in a smooth tube is constructed; the model is in 
satisfactory agreement with experiment.

aKazan State University, Kazan, Russia; bInstitute 
of Mechanics and Mechanical Engineering, Kazan Scientific Center of 
the Russian Academy of Sciences, Kazan, Russia; email: Raif.Galiullin@ksu.ru. 
Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 74, No. 3, pp. 
121-124, May-June, 2001. Original article submitted December 6, 1999; 
revision submitted October 23, 2000.

JEPTER74920200116
JEPTER7492016