On the numerical modeling of supercooled micro-droplet impact and freezing on superhydrophobic surfaces

2018 ◽  
Vol 127 ◽  
pp. 193-202 ◽  
Author(s):  
Moussa Tembely ◽  
Reza Attarzadeh ◽  
Ali Dolatabadi
Keyword(s):  
Numerical Modeling ◽  
Droplet Impact ◽  
Superhydrophobic Surfaces

Oblique droplet impact on superhydrophobic surfaces: Jets and bubbles

2020 ◽  
Vol 32 (12) ◽  
pp. 122112
Author(s):  
Jianwei Guo ◽  
Song Zou ◽  
Shiji Lin ◽  
Binyu Zhao ◽  
Xu Deng ◽  
...  
Keyword(s):  
Droplet Impact ◽  
Superhydrophobic Surfaces

scholarly journals Water droplet impact on elastic superhydrophobic surfaces

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Patricia B. Weisensee ◽  
Junjiao Tian ◽  
Nenad Miljkovic ◽  
William P. King
Keyword(s):  
Water Droplet ◽  
Droplet Impact ◽  
Superhydrophobic Surfaces

Droplet Impact on Anisotropic Superhydrophobic Surfaces

Langmuir ◽  
2018 ◽  
Vol 34 (11) ◽  
pp. 3533-3540 ◽  
Author(s):  
Chunfang Guo ◽  
Danyang Zhao ◽  
Yanjun Sun ◽  
Minjie Wang ◽  
Yahua Liu
Keyword(s):  
Droplet Impact ◽  
Superhydrophobic Surfaces

scholarly journals On the Numerical Modeling of FENE-CR Viscoelastic Droplet Impact Dynamics by the Volume Of Fluid Method

2018 ◽  
Author(s):  
Moussa Tembely
Keyword(s):  
Numerical Modeling ◽  
Polymer Solution ◽  
Constitutive Equations ◽  
Polymer Concentration ◽  
Volume Of Fluid ◽  
Droplet Impact ◽  
Rheological Characterization ◽  
Droplet Dynamics ◽  
Ink Jet ◽  
The Impact

In this paper, a numerical modeling of the impact, spreading, and eventually rebound of a viscoelastic droplet is reported. The numerical model is based on the volume of fluid (VOF) method coupled with the FENE-CR constitutive equations, and accounts for both the surface tension and the substrate wettability. The FENE-CR constitutive equations are used to model the polymer solution, while taking advantage of its rheological characterization. The comparison is performed between droplets of Newtonian solvent and a monodisperse polymer solution. The droplet impact on both hydrophilic and superhydrophobic substrate is analyzed through a detailed analysis of the spreading diameter evolution. It is found that while the droplet kinematic phase seems independent of the substrate and fluids properties, the recoiling phase is highly related to all of them. In addition, the model infers a critical polymer concentration above which the droplet rebound from a superhydrophobic substrate is suppressed. The simulation is of particular interest to ink-jet processing, and demonstrates the capability of the model to handle complex non-Newtonian droplet dynamics.

Droplet impact dynamics on single-pillar superhydrophobic surfaces

2021 ◽  
Vol 33 (10) ◽  
pp. 102108
Author(s):  
Siyu Ding ◽  
Zhifeng Hu ◽  
Liyu Dai ◽  
Xuan Zhang ◽  
Xiaomin Wu
Keyword(s):  
Droplet Impact ◽  
Superhydrophobic Surfaces ◽  
Impact Dynamics
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