Garcia-Atance Fatjo, Gonzalo, Torres Pérez, A. and Hadfield, M. (2011) Experimental study and analytical model of the cavitation ring region with small diameter ultrasonic horn. Ultrasonics Sonochemistry, 18 (1). pp. 73-79. ISSN 13504177
PDF (Publisher's post-print for classroom teaching and internal training purposes at UCLan)
- Published Version
Restricted to Registered users only
Official URL: http://dx.doi.org/10.1016/j.ultsonch.2009.12.006
Experiments of cavitation erosion are performed on a surface using the “stationary specimen method”. A small diameter horn of 5 mm is selected instead of using the standard horn of 15.9 mm. The experiments are performed according to these parameters: an excitation frequency of the horn of 20 kHz, a gap between the horn and the specimen within the range from 0.05 to 0.5 mm and the displacement amplitude of the horn within a range of 15–50 μm.
After examination of the samples, two erosion patterns can be clearly distinguished, one circular shape centred in the origin and a ring shape around. Moreover, it has been observed that the diameter of this ring shape, the cavitation ring region, is a function that depends on the amplitude and the gap. Existence of the cavitation ring region under the mentioned conditions is explained using a theoretical model based on the combination of Fluid Mechanics and Analytical Mechanics. Results after application of this model reveal the satisfactory agreement between the numerical output and the experimental data.
|Uncontrolled Keywords (separate with ;):||Ultrasonic cavitation; Clusters; Thin layer; Hamilton’s Principle|
|Schools:||Faculty of Science and Technology > School of Engineering|
|Deposited By:||Helen Cooper|
|Deposited On:||22 Mar 2013 10:17|
|Last Modified:||20 Oct 2016 15:45|
Downloads per month over past year
Downloads for past 30 days
Repository Staff Only: item control page