ANALOGY BETWEEN THE RESPONSE OF A TURBULENT JET AND A PENDULUM 
WITH A RANDOMLY VIBRATING SUSPENSION AXIS TO PERIODIC EXCITATION

E. V. Vlasov,a A. S. Ginevskii,a
P. S. Landa,b and D. L. Samodurovb

UDC 532.525.2:534.1

Experimental dependences, which illustrate the influence 
of the frequency and amplitude of the acoustic action on the aerodynamic 
characteristics of turbulent jets and mixing layers, are compared 
to the corresponding dependences obtained for a pendulum with a vibrating 
suspension axis. The similarity of them is noted. It is essential 
that the similarity indicated is based on the commonness of the nature 
of the phenomena occurring in these systems under the periodic action 
rather than on the similarity of the equations of motion in both cases.

aTsAGI (Central Aerohydrodynamics Institute) State Scientific-Research 
Institute, Moscow, Russia; bM. V. Lomonosov Moscow State University, 
Moscow, Russia; email: ginevsky@orc.ru. Translated from 
Inzhenerno-Fizicheskii Zhurnal, Vol. 75, No. 4, pp. 90-93, July-August, 
2002. Original article submitted December 21, 2001.

JEPTER74920200216
JEPTER7492016