FEATURES OF COMBINED INSTABILITY
OF A CHARGED INTERFACE BETWEEN
MOVING MEDIA

I. N. Aliev, S. O. Yurchenko,
and E. V. Nazarova

UDC 621.3.032.273

In solving the problem on the propagation of small-amplitude 
waves on a charged horizontal interface between two liquids, in the 
dispersion determinant derived, a term that is nonlinear with respect 
to the wave frequency combination and the velocity ratio between the 
upper and lower liquids has been obtained. The structure and the physical 
meaning of the equation obtained have been discussed. The notion of 
effective surface tension has been introduced.

N. É. Bauman Moscow State Technical 
University, 5, 2nd Bauman Str., Moscow, 105005, Russia; 
email: alievprof@mtu-net.ru. Translated from Inzhenerno-
Fizicheskii Zhurnal, Vol. 80, No. 5, pp. 64-69, September
-October, 2007. Original article submitted May 23, 2006.