Inertial and viscous dynamics of jump-to-contact between fluid drops under van der Waals attraction
Inertial and viscous dynamics of jump-to-contact between fluid drops under van der Waals attraction
复制标题
范德华吸引力下液滴之间跳跃接触的惯性和粘性动力学
DOI:
10.1017/jfm.2023.71
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发表时间:
2023
影响因子:
3.7
通讯作者:
Beaty E
中科院分区:
文献类型:
--
作者:
Beaty E
When two small fluid drops are sufficiently close, the van der Waals force overcomes surface tension and deforms the surfaces into contact, initiating coalescence. The dynamics of surface deformation across an inviscid gap falls into two distinct regimes (Stokes and inertial–viscous) characterized by the forces that balance the van der Waals attraction at leading order (viscosity, and both inertia and viscosity). The previously studied Stokes regime holds for very viscous drops but fails for less viscous drops as inertia becomes significant before contact is reached. We show that the subsequent inertial–viscous dynamics is self-similar as contact is approached, with the gap width decreasing as . The self-similar behaviour is universal and is the generic asymptotic behaviour observed in time-dependent simulations. The unique self-similar gap profile of the inertial–viscous regime suggests new initial conditions for the coalescence of the drops after contact.
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影响因子:
8.6
作者:
Beaty E
通讯作者:
Beaty E
DOI:
10.1021/la304359h
发表时间:
2013
期刊:
Langmuir : the ACS journal of surfaces and colloids
影响因子:
--
作者:
D. Quinn;Jie Feng;H. Stone
通讯作者:
H. Stone
DOI:
10.1073/pnas.2007857117
发表时间:
2020
期刊:
Proceedings of the National Academy of Sciences
影响因子:
--
作者:
L. Duchemin;C. Josserand
通讯作者:
C. Josserand
影响因子:
3.7
作者:
JONES, AF;WILSON, SDR
通讯作者:
WILSON, SDR
影响因子:
2.7
作者:
V. Chireux;M. Protat;Frédéric Risso;T. Ondarçuhu;P. Tordjeman
通讯作者:
P. Tordjeman