Free Surface Oscillations in a Rotating Liquid

1959 ◽  
Vol 2 (3) ◽  
pp. 297 ◽  
Author(s):  
John W. Miles
Keyword(s):  
Free Surface ◽  
Rotating Liquid ◽  
Free Surface Oscillations

Free-surface breakdown in a rapidly rotating liquid

1978 ◽  
Vol 86 (3) ◽  
pp. 457-463 ◽  
Author(s):  
W. E. Scott
Keyword(s):  
Free Surface ◽  
Capillary Waves ◽  
Mode Frequency ◽  
Wave Form ◽  
Inertial Waves ◽  
Rotating Liquid ◽  
Surface Breakdown ◽  
Beat Phenomenon ◽  
Inertial Wave ◽  
Wave Modes

It is shown that the wavelets which appear on the inertial wave form of the inner free surface of a fully spun-up cylindrical mass of liquid contained in a vertical, rapidly rotating and gyrating gyrostat are capillary waves. It is further shown that the interaction between these capillary waves and the excited inertial waves is not the mechanism which effects an observed two-period collapse (‘breakdown’) and reappearance of the free-surface inertial wave form. Rather, the two-period breakdown can be explained by the conjecture that it is a beat phenomenon arising from the interaction of two differently structured inertial wave modes, which have the same frequency at small amplitudes of oscillation of the gyrostat but which, owing to the dependence of the inertial mode frequency on the amplitude of the gyrostatic motion, have slightly different frequencies at larger amplitudes of oscillation of the gyrostat.

Analysis of free surface oscillations of a droplet due to ultrasonic wave impingement

2020 ◽  
Vol 32 (9) ◽  
pp. 092111
Author(s):  
Ehsan Mahravan ◽  
Hamid Naderan ◽  
Ebrahim Damangir
Keyword(s):  
Free Surface ◽  
Ultrasonic Wave ◽  
Free Surface Oscillations
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