Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Sankara, Arunachalam"'
Publikováno v:
Communications Engineering, Vol 3, Iss 1, Pp 1-10 (2024)
Abstract Numerous natural and engineering scenarios necessitate the entrapment of air pockets or bubbles on submerged surfaces. Current technologies for bubble entrapment rely on perfluorocarbon coatings, limiting their sustainability. Herein, we inv
Externí odkaz:
https://doaj.org/article/8ac4ac9f3ba445c68639eaa040da3a72
Publikováno v:
Communications Physics, Vol 7, Iss 1, Pp 1-9 (2024)
Abstract Liquid droplets hanging from solid surfaces are commonplace, but their physics is complex. Examples include dew or raindrops hanging onto wires or droplets accumulating onto a cover placed over warm food or windshields. In these scenarios, d
Externí odkaz:
https://doaj.org/article/636279d99bb34b6dbb535a20df42885c
Autor:
Sankara Arunachalam, Himanshu Mishra
Publikováno v:
Droplet, Vol 3, Iss 3, Pp n/a-n/a (2024)
Abstract Numerous natural and industrial processes entail the spontaneous entrapment of gas/air as rough/patterned surfaces are submerged under water. As the wetting transitions ensue, the gas diffuses into the water leading to the fully water‐fill
Externí odkaz:
https://doaj.org/article/93f5aa4719ff4db7906ff25464ccfa62
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-11 (2018)
Trapping air at the solid-liquid interface is a promising strategy for reducing frictional drag but could not be realized without perfluorinated coatings so-far. Here the authors demonstrate a biomimetic coating-free approach for entrapping air for l
Externí odkaz:
https://doaj.org/article/fc1e90dece93403fbb781332b0fe8585
Autor:
Adair Gallo, Carlos M. Duarte, Lanna Cheng, Andreia S.F. Farinha, Gauri A. Mahadik, Himanshu Mishra, Sankara Arunachalam, Sigurdur T. Thoroddsen, J. F. Hernández-Sánchez
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-12 (2020)
Scientific Reports
Scientific Reports
Despite the remarkable evolutionary success of insects at colonizing every conceivable terrestrial and aquatic habitat, only five Halobates (Heteroptera: Gerridae) species (~0.0001% of all known insect species) have succeeded at colonizing the open o
Autor:
Ratul, Das, Sankara, Arunachalam, Zain, Ahmad, Edelberto, Manalastas, Ahad, Syed, Ulrich, Buttner, Himanshu, Mishra
Publikováno v:
Journal of visualized experiments : JoVE. (157)
Desalination through direct contact membrane distillation (DCMD) exploits water-repellent membranes to robustly separate counterflowing streams of hot and salty seawater from cold and pure water, thus allowing only pure water vapor to pass through. T
Autor:
Sankara, Arunachalam, Eddy M, Domingues, Ratul, Das, Jamilya, Nauruzbayeva, Ulrich, Buttner, Ahad, Syed, Himanshu, Mishra
Publikováno v:
Journal of visualized experiments : JoVE. (156)
We present microfabrication protocols for rendering intrinsically wetting materials repellent to liquids (omniphobic) by creating gas-entrapping microtextures (GEMs) on them comprising cavities and pillars with reentrant and doubly reentrant features
Autor:
Eddy M. Domingues, Ahad Syed, Jamilya Nauruzbayeva, Ulrich Buttner, Sankara Arunachalam, Himanshu Mishra, Ratul Das
Publikováno v:
Journal of Visualized Experiments.
We present microfabrication protocols for rendering intrinsically wetting materials repellent to liquids (omniphobic) by creating gas-entrapping microtextures (GEMs) on them comprising cavities and pillars with reentrant and doubly reentrant features
Doubly Reentrant Cavities Prevent Catastrophic Wetting Transitions on Intrinsically Wetting Surfaces
Publikováno v:
ACS Applied Materials & Interfaces. 9:21532-21538
Omniphobic surfaces, that is, which repel all known liquids, have proven of value in applications ranging from membrane distillation to underwater drag reduction. A limitation of currently employed omniphobic surfaces is that they rely on perfluorina
Autor:
Silvestre Roberto, Gonzalez-Avila, Dang Minh, Nguyen, Sankara, Arunachalam, Eddy M, Domingues, Himanshu, Mishra, Claus-Dieter, Ohl
Publikováno v:
Science Advances
Insect-inspired surfaces repel bubble jets.
Cavitation refers to the formation and collapse of vapor bubbles near solid boundaries in high-speed flows, such as ship propellers and pumps. During this process, cavitation bubbles focus fluid energy
Cavitation refers to the formation and collapse of vapor bubbles near solid boundaries in high-speed flows, such as ship propellers and pumps. During this process, cavitation bubbles focus fluid energy