STUDY INTO CORRELATION BETWEEN THE ULTRASONIC 
CAPILLARY EFFECT AND SONOLUMINESCENCE

N. V. Dezhkunova and T. G. Leightonb 

UDC 541.183.534.2

The correlation between the phenomena of luminescence generation in 
the cavitation region (sonoluminescence) and increase of the height 
and velocity of liquid rise in a capillary under the action of 
ultrasound (ultrasonic capillary effect) has been investigated. It 
is shown that with small gaps between the capillary and emitter the 
thresholds of these effects, i.e., minimum values of the amplitude of 
oscillations at which they originate, virtually coincide. Variation 
of the parameters which leads to an increase in the intensity of 
sonoluminescence results in increase of the ultrasonic capillary effect.
The results obtained confirm the hypothesis of the cavitation nature of 
the ultrasonic capillary effect and indicate the possibility of using 
a capillary as an indicator of activity of acoustic cavitation.

aBelarusian State University of Informatics and Radioelectronics, 
6 P. Brovka Str., Minsk, 220013, Belarus; email: dnv@bsuir.edu.by; 
bInstitute of Sound and Vibration Research, University of Southampton, 
Southampton, SO17 1BJ, UK. Translated from Inzhenerno-Fizicheskii Zhurnal, 
Vol. 77, No. 1, pp. 45-51, January-February, 2004. Original article 
submitted August 19, 2003.