Diffusion-Dominated Pinch-Off of Ultralow Surface Tension Fluids

Hau Yung Lo; Yuan Liu; Sze Yi Mak; Zhuo Xu; Youchuang Chao; Kaye Jiale Li; Ho Cheung Shum; Lei Xu

doi:10.1103/PhysRevLett.123.134501

Diffusion-Dominated Pinch-Off of Ultralow Surface Tension Fluids

Hau Yung Lo (Co-first Author)
, Yuan Liu (Co-first Author)
, Sze Yi Mak
, Zhuo Xu
, Youchuang Chao
, Kaye Jiale Li
, Ho Cheung Shum^*
, Lei Xu^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

27 Citations (Scopus)

Abstract

We study the breakup of a liquid thread inside another liquid at different surface tensions. In general, the pinch-off of a liquid thread is governed by the dynamics of fluid flow. However, when the interfacial tension is ultralow (2-3 orders lower than normal liquids), we find that the pinch-off dynamics can be governed by bulk diffusion. By studying the velocity and the profile of the pinch-off, we explain why the diffusion-dominated pinch-off takes over the conventional breakup at ultralow surface tensions. © 2019 American Physical Society.

Original language	English
Article number	134501
Journal	Physical Review Letters
Volume	123
Issue number	13
Online published	23 Sept 2019
DOIs	https://doi.org/10.1103/PhysRevLett.123.134501
Publication status	Published - 27 Sept 2019
Externally published	Yes

Funding

This project is supported by Hong Kong RGC (GRF 14306518, 14303415, 17304017, 17305414, 17305518, 17306315, CRF C6004-14G, C1018-17G), and CUHK Direct Grants (No. 4053313, No. 4053231, No. 4053167, No. 4053354). We thank Peter W. Voorhees, Xiaohu Zhou, Yang Song, and Hao Yuan for helpful discussions. We also acknowledge an anonymous referee for suggesting the Zimm model.

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title = "Diffusion-Dominated Pinch-Off of Ultralow Surface Tension Fluids",

abstract = "We study the breakup of a liquid thread inside another liquid at different surface tensions. In general, the pinch-off of a liquid thread is governed by the dynamics of fluid flow. However, when the interfacial tension is ultralow (2-3 orders lower than normal liquids), we find that the pinch-off dynamics can be governed by bulk diffusion. By studying the velocity and the profile of the pinch-off, we explain why the diffusion-dominated pinch-off takes over the conventional breakup at ultralow surface tensions. {\textcopyright} 2019 American Physical Society.",

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doi = "10.1103/PhysRevLett.123.134501",

language = "English",

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AU - Lo, Hau Yung

AU - Liu, Yuan

AU - Mak, Sze Yi

AU - Xu, Zhuo

AU - Chao, Youchuang

AU - Li, Kaye Jiale

AU - Shum, Ho Cheung

AU - Xu, Lei

PY - 2019/9/27

Y1 - 2019/9/27

N2 - We study the breakup of a liquid thread inside another liquid at different surface tensions. In general, the pinch-off of a liquid thread is governed by the dynamics of fluid flow. However, when the interfacial tension is ultralow (2-3 orders lower than normal liquids), we find that the pinch-off dynamics can be governed by bulk diffusion. By studying the velocity and the profile of the pinch-off, we explain why the diffusion-dominated pinch-off takes over the conventional breakup at ultralow surface tensions. © 2019 American Physical Society.

AB - We study the breakup of a liquid thread inside another liquid at different surface tensions. In general, the pinch-off of a liquid thread is governed by the dynamics of fluid flow. However, when the interfacial tension is ultralow (2-3 orders lower than normal liquids), we find that the pinch-off dynamics can be governed by bulk diffusion. By studying the velocity and the profile of the pinch-off, we explain why the diffusion-dominated pinch-off takes over the conventional breakup at ultralow surface tensions. © 2019 American Physical Society.

UR - https://www.scopus.com/pages/publications/85072769511

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85072769511&origin=recordpage

U2 - 10.1103/PhysRevLett.123.134501

DO - 10.1103/PhysRevLett.123.134501

M3 - RGC 21 - Publication in refereed journal

C2 - 31697525

SN - 0031-9007

VL - 123

JO - Physical Review Letters

JF - Physical Review Letters

IS - 13

M1 - 134501

ER -

Diffusion-Dominated Pinch-Off of Ultralow Surface Tension Fluids

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CRF: Bio-inspired Surface Engineering for Phase Change Heat Transfer: From Fundamental Understanding to Practical Applications

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Diffusion-Dominated Pinch-Off of Ultralow Surface Tension Fluids

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Projects

CRF: Bio-inspired Surface Engineering for Phase Change Heat Transfer: From Fundamental Understanding to Practical Applications

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