Elucidating the mechanism of condensation-mediated degradation of organofunctional silane self-assembled monolayer coatings

R Wang, K Jakhar, S Ahmed… - ACS applied materials & …, 2021 - ACS Publications
Dropwise condensation is favorable for numerous industrial and heat/mass transfer
applications due to the enhanced heat transfer performance that results from efficient …

Cloaked droplets on lubricant-infused surfaces: union of constant mean curvature interfaces dictated by thin-film tension

MR Gunjan, A Kumar, R Raj - Langmuir, 2021 - ACS Publications
It has been recently shown that small-volume droplets on lubricant-infused surfaces (LISs)
can be analytically modeled using rotationally symmetric constant mean curvature (CMC) …

[HTML][HTML] The possibility of changing the wettability of material surface by adjusting gravity

YM Liu, ZQ Wu, S Bao, WH Guo, DW Li, J He, XB Zeng… - Research, 2020 - spj.science.org
The contact angle, as a vital measured parameter of wettability of material surface, has long
been in dispute whether it is affected by gravity. Herein, we measured the advancing and …

Unified framework for map** shape and stability of pendant drops including the effect of contact angle hysteresis

A Kumar, MR Gunjan, K Jakhar, A Thakur… - Colloids and Surfaces A …, 2020 - Elsevier
Abstract Solution of the Young-Laplace equation for fluid-fluid interface shapes is crucial in
several applications related to colloids, capillarity, and surfaces. Despite significant progress …

Droplets on lubricant-infused surfaces: Combination of constant mean curvature interfaces with Neumann triangle boundary conditions

MR Gunjan, A Kumar, R Raj - Langmuir, 2020 - ACS Publications
Superior mobility of droplets on lubricant-infused surfaces (LIS) has recently attracted
significant attention for designing liquid-repellent surfaces. Unlike sessile droplets on flat …

[HTML][HTML] Generation and Suppression of Pendant Droplet Oscillation in Electron Beam Directed Energy Deposition

Z Liang, Z Liao, H Zhang, Z Li, L Wang, B Chang, D Du - Engineering, 2024 - Elsevier
Electron beam–directed energy deposition (EB–DED) has emerged as a promising wire-
based metal additive manufacturing technique. However, the effects of EBs on pendant …

[HTML][HTML] On the validity of force balance models for predicting gravity-induced detachment of pendant drops and bubbles

A Kumar, MR Gunjan, R Raj - Physics of Fluids, 2020 - pubs.aip.org
We show that it is fundamentally inaccurate to apply force-balance models to predict the
gravity/buoyancy induced detachment of quasi-steadily growing pendant droplets/bubbles …

Numerical study for a large-volume droplet on the dual-rough surface: apparent contact angle, contact angle hysteresis, and transition barrier

J Dong, Y **, H Dong, J Liu, S Ye - Langmuir, 2018 - ACS Publications
The profile, apparent contact angle (ACA), contact angle hysteresis (CAH), and wetting state
transmission energy barrier (WSTEB) are important static and dynamic properties of a large …

Numerical simulation of two-phase droplets on a curved surface using Surface Evolver

M Jamali, HV Tafreshi - Colloids and Surfaces A: Physicochemical and …, 2021 - Elsevier
In this paper, we present a new approach for using the Surface Evolver (SE) finite element
program to simulate the 3-D shape of a droplet on a curved surface. The approach proposed …

Spline-based Interface Modeling and Optimization (SIMO) for Surface Tension and Contact Angle Measurements

K Jakhar, A Chattopadhyay, A Thakur, R Raj - arxiv preprint arxiv …, 2019 - arxiv.org
Surface tension and contact angle measurements are fundamental characterization
techniques relevant to thermal and fluidic applications. Drop shape analysis techniques for …