開催日時
2026年6月30日（火）午後2:30 〜 午後3:30
講師
Jonathan Boreyko 准教授
（Department of Mechanical Engineering, Virginia Tech, U.S.A.）
演題
“15 Variations on a Theme of Jumping Droplets”
Abstract
When micro-droplets coalesce on a low adhesion substrate, they dramatically jump off the surface (Figure 1). Here, we develop the underlying fluid mechanics of jumping droplets and then present 15 variations on a theme of capillary-inertial jumping. In addition to being a fun and visceral illustration of the power of surface tension at the micro-scale, capillary-inertial jumping has the potential to improve the energy efficiency of a wide variety of practical systems. Examples include enhancing the condensation heat transfer coefficient, enabling self-cleaning materials, combating frost formation, and even enhancing crop yields.
Figure 1: Side-view high-speed imaging of jumping-droplet condensation.
座長
Zhenying Wang 准教授
（マルチスケール構造科学ユニット）
言語
英語
