scholarly journals Experimental investigation on the effects of the standoff distance and the initial radius on the dynamics of a single bubble near a rigid wall in an ultrasonic field

2020 ◽  
Vol 68 ◽  
pp. 105197
Author(s):  
Hao Wu ◽  
Cheng Zhou ◽  
Zhihua Pu ◽  
Xiaochen Lai ◽  
Haixia Yu ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Rigid Wall ◽  
Ultrasonic Field ◽  
Standoff Distance ◽  
Single Bubble ◽  
Initial Radius

scholarly journals Effect of low-frequency ultrasonic field at different power on the dynamics of a single bubble near a rigid wall

2019 ◽  
Vol 58 ◽  
pp. 104704 ◽  
Author(s):  
Hao Wu ◽  
Cheng Zhou ◽  
Zhihua Pu ◽  
Haixia Yu ◽  
Dachao Li
Keyword(s):  
Low Frequency ◽  
Rigid Wall ◽  
Ultrasonic Field ◽  
Single Bubble

scholarly journals Simulation of Rayleigh Bubble Growth near a No-Slip Rigid Wall

2021 ◽  
Vol 314 ◽  
pp. 192-196
Author(s):  
Tomoya Tanaka ◽  
Keita Ando
Keyword(s):  
Shear Stress ◽  
Bubble Growth ◽  
Rigid Wall ◽  
Standoff Distance ◽  
Navier Stokes ◽  
Particle Removal ◽  
Initial Radius ◽  
Air Bubble ◽  
Strong Shear

In order to study the role of growing cavitation bubbles in the context of ultrasonic cleaning, we perform two-dimensional, axisymmetric Navier-Stokes simulation for compressible, multicomponent flow and examine the so-called Rayleigh growth of an air bubble (with initial radius 33 µm and pressure 10 MPa) near a rigid wall. The simulation suggests that strong shear stress, which is important in physical cleaning such as particle removal, appears as a result of the bubble-growth-induced shock passage. The parametric study with varying a standoff distance of the bubble to the wall shows that the wall shear stress linearly decreases against the standoff distance.

Experimental Investigation of Single Bubble Nucleate Boiling in Microgravity

2020 ◽  
Vol 32 (4) ◽  
pp. 597-607
Author(s):  
Iman Nejati ◽  
Axel Sielaff ◽  
Benjamin Franz ◽  
Matthias Zimmermann ◽  
Philipp Hänichen ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Nucleate Boiling ◽  
Single Bubble

scholarly journals Dynamic behavior of a single bubble between the free surface and rigid wall

2020 ◽  
Vol 67 ◽  
pp. 105147 ◽  
Author(s):  
Guohao Huang ◽  
Mindi Zhang ◽  
Xiaojian Ma ◽  
Qing Chang ◽  
Chen Zheng ◽  
...  
Keyword(s):  
Free Surface ◽  
Dynamic Behavior ◽  
Rigid Wall ◽  
Single Bubble
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