Determination of Dynamic Interfacial Tension and Its Effect on Droplet Formation in the T-Shaped Microdispersion Process

Langmuir ◽  
2009 ◽  
Vol 25 (4) ◽  
pp. 2153-2158 ◽  
Author(s):  
K. Wang ◽  
Y. C. Lu ◽  
J. H. Xu ◽  
G. S. Luo
Keyword(s):  
Interfacial Tension ◽  
Droplet Formation ◽  
Dynamic Interfacial Tension

scholarly journals Dynamic interfacial tension effects in the rupture of liquid necks

2012 ◽  
Vol 692 ◽  
pp. 499-510 ◽  
Author(s):  
M. Robert de Saint Vincent ◽  
J. Petit ◽  
M. Aytouna ◽  
J. P. Delville ◽  
D. Bonn ◽  
...  
Keyword(s):  
Interfacial Tension ◽  
Temporal Change ◽  
Droplet Formation ◽  
Rupture Process ◽  
Time Varying ◽  
Dynamic Interfacial Tension ◽  
Dynamic Time ◽  
Local Nature

AbstractBy examining the rupture of fluid necks during droplet formation of surfactant-laden liquids, we observe deviations from expected behaviour for the pinch-off of such necks. We suggest that these deviations are due to the presence of a dynamic (time-varying) interfacial tension at the minimum neck location and extract this quantity from our measurements on a variety of systems. The presence of such dynamic interfacial tension effects should change the rupture process drastically. However, our measurements show that a simple ansatz, which incorporates the temporal change of the interfacial tension, allows us to understand the dynamics of thinning. This shows that this dynamics is largely independent of the exact details of what happens far from the breakup location, pointing to the local nature of the thinning dynamics.

Determination of dynamic interfacial tension in a pulsed column under mass transfer condition

AIChE Journal ◽  
2020 ◽  
Vol 66 (8) ◽  
Author(s):  
Bo Wang ◽  
Han Zhou ◽  
Xiong Yu ◽  
Shan Jing ◽  
Qiang Zheng ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Interfacial Tension ◽  
Transfer Condition ◽  
Dynamic Interfacial Tension

scholarly journals Determination of dynamic interfacial tension in a pulsed column under mass transfer condition

Authorea ◽  
2020 ◽  
Author(s):  
Bo Wang ◽  
Han Zhou ◽  
Xiong Yu ◽  
Shan Jing ◽  
Qiang Zheng ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Interfacial Tension ◽  
Transfer Condition ◽  
Dynamic Interfacial Tension

Determination of Dynamic Interfacial Tension during the Generation of Tiny Droplets in the Liquid–Liquid Jetting Flow Regime

Langmuir ◽  
2020 ◽  
Vol 36 (45) ◽  
pp. 13633-13641
Author(s):  
Yongjin Cui ◽  
Yankai Li ◽  
Kai Wang ◽  
Jian Deng ◽  
Guangsheng Luo
Keyword(s):  
Interfacial Tension ◽  
Flow Regime ◽  
Dynamic Interfacial Tension

Effects of cation salinity on the dynamic interfacial tension and viscoelasticity of a water-oil system

2021 ◽  
pp. 108970
Author(s):  
Mohsen Mahmoudvand ◽  
Aliyar Javadi ◽  
Peyman Pourafshary ◽  
Hamid Vatanparast ◽  
Alireza Bahramian
Keyword(s):  
Interfacial Tension ◽  
Dynamic Interfacial Tension

scholarly journals Study on the Effect of Nanoparticle Used in Nano-Fluid Flooding on Droplet–Interface Electro-Coalescence

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1764
Author(s):  
Donghai Yang ◽  
Huayao Sun ◽  
Qing Chang ◽  
Yongxiang Sun ◽  
Limin He
Keyword(s):  
Interfacial Tension ◽  
Oil Recovery ◽  
Liquid Bridge ◽  
High Speed ◽  
Droplet Formation ◽  
Force Balance ◽  
Secondary Droplet ◽  
Droplet Deformation ◽  
Deformation Degree ◽  
Nano Fluid

Nano-fluid flooding is a new method capable of improving oil recovery; however, nanoparticles (NPs) significantly affect electric dehydration, which has rarely been investigated. The effect of silica (SiO2) NPs on the droplet–interface coalescence was investigated using a high-speed digital camera under an electric field. The droplet experienced a fall, coalescence, and secondary droplet formation. The results revealed that the oil–water interfacial tension and water conductivity changed because of the SiO2 NPs. The decrease of interfacial tension facilitated droplet deformation during the falling process. However, with the increase of particle concentration, the formed particle film inhibited the droplet deformation degree. Droplet and interface are connected by a liquid bridge during coalescence, and the NP concentration also resulted in the shape of this liquid bridge changing. The increase of NP concentration inhibited the horizontal contraction of the liquid bridge while promoting vertical collapse. As a result, it did not facilitate secondary droplet formation. Moreover, the droplet falling velocity decreased, while the rising velocity of the secondary droplet increased. Additionally, the inverse calculation of the force balance equation showed that the charge of the secondary droplet also increased. This is attributed to nanoparticle accumulation, which resulted in charge accumulation on the top of the droplet.

Sign in / Sign up

Export Citation Format

Share Document