MICROSCALE VAPOR BUBBLE INTERACTIONS DURING SUBCOOLED NUCLEATE BOILING ON A HEATED WIRE

摘要：

Bubbles have been observed moving along heated wires during subcooled nucleate boiling as they are driven by Marangoni convection around the bubbles. This paper presents more detailed observations of the vapor bubble interactions and moving bubble behavior during subcooled nucleate boiling on a heated microwire. The experimental results show that moving bubbles coalesce or rebound from other bubbles and that bubbles hop on the wire. These observations show how bubble interactions significantly affect nucleate boiling heat transferrates and how Marangoni flow plays an important role in microscale nucleate boiling heat transfer mechanisms.

关键词： Subcooled nucleate boiling Marangoni flow bubblecoalescence rebound hopping

作者: Lu Zhang David M.Christopher

作者单位: Department of Thermal Engineering, Tsinghua University, Beijing, 100085 China

会议类型: 国际会议

会议名称: 2007年微纳系统集成及其商业化应用国际学术会议(2007 International Conference & Exhibition on Integration and Commercialization of Micro and Nano-Systems)

会议地点: 海南三亚

会议语种:英文

在线出版日期: 2007-01-10（万方平台首次上网日期，不代表论文的发表时间）