作者
Sohrab Towfighi, Hadi Mehrabian, Roberto Zenit, James J Feng
发表日期
2012/11
期刊
APS Division of Fluid Dynamics Meeting Abstracts
页码范围
F1. 073
简介
The collision of a rising bubble with a hydrophilic upper wall is studied numerically using an axisymmetric phase-field model. Prior experiments show bubble bouncing or adhesion depending on its incoming velocity. Using experimental parameters, our computation reproduces these different behaviors, including bubble breakup, arrest, and rebound. In particular, dimples are observed on both the fore and aft sides. We further investigate the scaling of the coefficient of restitution and the critical condition delineating arrest from rebound. The latter is plotted as a phase diagram in terms of the Ohnesorge and Weber numbers.
学术搜索中的文章
S Towfighi, H Mehrabian, R Zenit, JJ Feng - APS Division of Fluid Dynamics Meeting Abstracts, 2012