Impact of bubble coalescence in the determination of bubble sizes using a pulsed US technique: Part 2 – Effect of the nature of saturating gas - Archive ouverte HAL Access content directly
Journal Articles Ultrasonics Sonochemistry Year : 2021

## Impact of bubble coalescence in the determination of bubble sizes using a pulsed US technique: Part 2 – Effect of the nature of saturating gas

Rachel Pflieger

Connectez-vous pour contacter l'auteur
Geoffrey Audiger
• Function : Author
Sergey I. Nikitenko
Muthupandian Ashokkumar

#### Abstract

Knowledge on cavitation bubble size distribution, ambient radius of bubbles is of interest for many applications that include therapeutic and diagnostic medicine. It however becomes a hard quest when increasing the ultrasonic frequency, when direct observation of bubble dynamics is no longer possible. An indirect method based on the estimation of the bubble dissolution time under pulsed ultrasound (362 kHz) is used here under optimized conditions to derive ambient radii of cavitation bubbles in water saturated with He, Ar, Xe, O$_2$, N$_2$ and air: 3.0 µm for Ar, 1.2 µm for He, 3.1 µm for Xe, 2.8 µm for O$_2$, around 1 µm for N$_2$ and air. If the pulse on-time is increased, bubble coalescence occurs, the extent of which is rather limited for Ar but extremely high for He or N$_2$.

### Dates and versions

cea-03234659 , version 1 (28-05-2021)

### Licence

Attribution - NonCommercial - NoDerivatives - CC BY 4.0

### Identifiers

• HAL Id : cea-03234659 , version 1
• DOI :

### Cite

Rachel Pflieger, Geoffrey Audiger, Sergey I. Nikitenko, Muthupandian Ashokkumar. Impact of bubble coalescence in the determination of bubble sizes using a pulsed US technique: Part 2 – Effect of the nature of saturating gas. Ultrasonics Sonochemistry, 2021, 73, pp.105537. ⟨10.1016/j.ultsonch.2021.105537⟩. ⟨cea-03234659⟩

### Export

BibTeX TEI Dublin Core DC Terms EndNote Datacite

58 View