A4-a1 - Influence of changes in static pressure on sonoluminescence
- Event
- 2025 ICU PADERBORN - 9th International Congress on Ultrasonics
2025-09-21 - 2025-09-25
Paderborn - Band
- Lectures
- Chapter
- A4-a - Bubbles and Cavitation
- Author(s)
- S. Nakamura, K. Yamamoto - Kansai University, Osaka (Japan)
- Pages
- 36 - 39
- DOI
- 10.5162/Ultrasonic2025/A4-a1
- ISBN
- 978-3-910600-08-9
- Price
- free
Abstract
Experimental observations and theoretical numerical calculations on the primary Bjerknes force were performed to determine the effect of static pressure changes on sonoluminescence (SL). The intensity of SL increased with increasing static pressure. The numerical calculations showed that under high static pressure, bubbles in standing waves are trapped at higher sound pressures. Bubbles trapped under higher sound pressure collapse more violently and the temperature inside the bubble increases.