Results 81 to 90 of about 83,275 (200)
Numerical investigation of boiling [PDF]
, 2012 In this work, we study different phenomena that occur during nucleate boiling. We numerically investigate boiling using two phase flow direct numerical simulation based on a level set / Ghost Fluid method.
Colin, Catherine +2 more
core
Thermal hysteresis in wettability and the Leidenfrost phenomenon
Physical Review ResearchThe Leidenfrost temperature (T_{L}), at which the liquid drop lifetime peaks on a superheated surface, is believed to be wettability dependent. Here, we show that the wettability effect on T_{L} is subject to the history of the surface temperature ...
Yutaku Kita +5 more
doaj +1 more source
Ultrahydrophobic Textiles Using Nanoparticles: Lotus Approach [PDF]
Journal of Engineered Fibers and Fabrics, 2008 It is well established that the water wettability of ma-terials is governed by both the chemical composition and the geometrical microstructure of the surface.1 Traditional textile wet processing treatments do in-deed rely fundamentally upon complete ...
Karthik Ramaratnam, Ph.D. +5 more
doaj
Effect of contact angle hysteresis on moving liquid film integrity [PDF]
A study was made of the formation and breakdown of a water film moving over solid surfaces (teflon, lucite, stainless steel, and copper). The flow rate associated with film formation was found to be higher than the flow rate at which film breakdown ...
Hsu, Y. Y., Simon, F. F.
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Contact angle hysteresis of Newtonian fluid
IOP Conference Series: Earth and Environmental Science, 2020 Abstract Contact angle hysteresis of Newtonian fluid is a fundamental and complicated phenomenon related to wetting and dewetting. This article reviews typical research progress of contact angle hysteresis and proposes some critical directions deserved to be investigated.
openaire +1 more source
International Journal of Electrochemical Science, 2013 In this paper, an improved fouling-resistant silicone-based coating was designed and prepared with the addition of an amphiphilic additive of poly (acrylamide-silicone) (PAS) into silicone.
Cunguo Lin +6 more
doaj +1 more source
Generation of Motion of Drops with Interfacial Contact
, 2015 A liquid drop moves on a solid surface if it is subjected to a gradient of wettability or temperature. However, the pinning defects on the surface manifested in terms of a wetting hysteresis, or first-order nonlinear friction, limit the motion in the ...
Chakrabarti, Aditi +2 more
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The size and shape of equilibrium capillary surfaces [PDF]
, 1982 The classical theory of capillary is concerned largely with size and shape estimates in symmetric asymptotic configurations. Recent developments leading to global results for all symmetric cases, and to qualitative information on asymptotic properties ...
Finn, R.
core +1 more source
Pseudo-contact angle due to superfluid vortices in $^{4}$He
, 1999 We have investigated spreading of superfluid $^{4}$He on top of polished MgF$_2$ and evaporated SiO$_{2}$ substrates. Our results show strongly varying contact angles of 0 - 15 mrad on the evaporated layers.
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Atmospheric Water Harvesting: Role of Surface Wettability and Edge Effect
Global Challenges, 2017 Atmospheric water is emerging as an important potable water source. The present work experimentally and theoretically investigates water condensation and collection on flat surfaces with contrasting contact angles and contact angle hysteresis (CAH) to ...
Yong Jin, Lianbin Zhang, Peng Wang
doaj +1 more source