Significance of Ultrasonic Cavitation Field Distribution in Microcellular Foaming of Polymers

2015 ◽  
Vol 34 (1) ◽  
pp. 1-14 ◽  
Author(s):  
Abhishek Gandhi ◽  
Naresh Bhatnagar
Keyword(s):  
Field Distribution ◽  
Ultrasonic Cavitation ◽  
Microcellular Foaming ◽  
Cavitation Field

scholarly journals Study on the Characterization Method of Ultrasonic Cavitation Field based on the Numerical Simulation of the Amplitude of Sound Pressure

2020 ◽  
Vol 319 ◽  
pp. 02003
Author(s):  
Tangfei Tao ◽  
Jinmin Zhao ◽  
Wei Wang
Keyword(s):  
Numerical Simulation ◽  
Field Distribution ◽  
Sound Pressure ◽  
Ultrasonic Cavitation ◽  
Distribution Area ◽  
Three Dimensional Model ◽  
Distribution Law ◽  
Finite Element Software ◽  
Cavitation Effect ◽  
Cavitation Field

In order to meet the visualization requirements of the cavitation field distribution in the ultrasonic cavitation reactor, a method based on the numerical simulation of the amplitude of sound pressure is proposed. In order to verify that the amplitude of sound pressure plays a decisive role in cavitation effect, the dynamic equation of a single cavitation bubble is established, and the influence law of the amplitude of sound pressure on cavitation motion is analyzed in principle; then, the three-dimensional model of the self-built drum type ultrasonic cavitation reactor is built using the finite element software COMSOL Multiphysics, and the amplitude distribution of the sound pressure at the longitudinal section is obtained when the liquid height was 25 mm, 60 mm and 90 mm. Through the comparison of aluminum foil corrosion experiments, it shows that the numerical simulation method based on the amplitude of sound pressure can accurately characterize the distribution area of ultrasonic cavitation field, which overcomes the disadvantage of time-consuming and labor-consuming in the traditional measurement method of cavitation field distribution, and lays a foundation for the study of the distribution law of ultrasonic cavitation field.

scholarly journals The influence of air content in water on ultrasonic cavitation field

2014 ◽  
Vol 21 (2) ◽  
pp. 566-571 ◽  
Author(s):  
Liyan Liu ◽  
Yang Yang ◽  
Penghong Liu ◽  
Wei Tan
Keyword(s):  
Ultrasonic Cavitation ◽  
Air Content ◽  
Cavitation Field

scholarly journals RBF Model for the Mass Loss of a Brass in Cavitation Field

2021 ◽  
Vol 44 (4) ◽  
pp. 17-21
Author(s):  
Alina BĂRBULESCU ◽  
Cristian Ștefan DUMITRIU
Keyword(s):  
Mass Loss ◽  
High Frequency ◽  
Saline Water ◽  
Ultrasonic Cavitation ◽  
The Third ◽  
Data Collecting ◽  
Cavitation Field ◽  
Frequency Generator ◽  
Brass Sample ◽  
High Frequency Generator

This article aims at presenting the model of the mass loss of a brass sample in ultrasonic cavitation field in saline water. The experiments done for data collecting was performed in three scenarios. In the first one, the high frequency generator worked at three power levels - 80 W, at the second one - at 120 W, and in the third one - at 180 W. The Model has been built using the series of the mass loss on surface.

Formation and characterization of graphite-encapsulated cobalt nanoparticles synthesized by electric discharge in an ultrasonic cavitation field of liquid ethanol

2007 ◽  
Vol 55 (11) ◽  
pp. 3671-3680 ◽  
Author(s):  
Ruslan Sergiienko ◽  
Etsuro Shibata ◽  
Akase Zentaro ◽  
Daisuke Shindo ◽  
Takashi Nakamura ◽  
...  
Keyword(s):  
Electric Discharge ◽  
Cobalt Nanoparticles ◽  
Ultrasonic Cavitation ◽  
Cavitation Field
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