Skip to Main Content
ASME Press Select Proceedings

Proceedings of the 10th International Symposium on Cavitation (CAV2018)

Editor
Joseph Katz
Joseph Katz
Search for other works by this author on:
ISBN:
9780791861851
No. of Pages:
1108
Publisher:
ASME Press
Publication date:
2018

Cavitation bubble dynamics in narrow gaps confined by rigid boundaries greatly differs from a liquid half-space. There exists a regime, where the bubble is created on one side of the gap and collapses on the opposite side. Additionally, the jet velocities may be considerably larger. The oscillating bubble and the impacting jets form complex boundary layer flows with greatly increased wall shear stress. The observations have implications for cleaning applications in narrow spaces. The experimental results show that the shear flow generated is active much longer after the collapse of the bubble. The results show approximately a 3-fold increase of the shear stress as compared to a liquid half space. We also present a space-time graph from numerical simulations. Additionally, the fluid dynamics is studied with the motion of particles attached to a substrate and the effect of shear on adherent biological cells.

Introduction
Bubble Dynamics
Wall Shear Stress
Experimental and Numerical Results
Cleaning in a Narrow Gap
Molecule Transport into Cells
Conclusion
References
This content is only available via PDF.
Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal