Abstract
The interaction between adjacent bubbles plays an important role in boiling heat transfer on a micro heat source. In this paper, the visualizing bubble behaviors during subcooled pool boiling on microwires were revisited experimentally. Bubble circling phenomena, the circling of small bubble around a larger one for subcooled boiling on platinum microwires submerged in ultrapure water or self-rewetting fluid, were investigated. Different types of bubble circling phenomena, including small bubble sweeping, departing, rotating, returning or chasing at a larger bubble interface, were described in detail. The roles of Marangoni effect and viscous force were analyzed in the process of bubble circling to understand the mechanism of bubble behaviors on micro heated surface. The investigation on the bubble circling phenomenon can help verify the crucial factors that influence the bubble dynamics, bubble interaction and boiling heat transfer. The bubble dynamics in this phenomenon also makes it an interesting choice for many microscale applications.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.