Capillary flow in irregular surface grooves

Author: njrp

August undefined, 2024

WebMay 15, 2024 · Lyapunov and non-modal stability analysis reveal why stationary and self-similar capillary flows in slender open triangular channels are so stable to disturbances. This robust feature allows superior flow management for applications ranging from space micropropulsion to microfluidic diagnostics. WebOct 1, 2014 · Capillary rise in grooves (or wedges, corners), as another subtopic of capillary flow, has played an increasing important role in heat transfer devices (such as …

Universality of capillary rising in corners Journal of Fluid ...

WebCapillary Flow in Irregular Surface Grooves R. R. Rye,* F. G. Yost, and E. J. O’Toole Sandia National Laboratories, Albuquerque, New Mexico 87185-1411 Received November 10, 1997. In Final Form: April 13, 1998 1-Heptanol flow in irregularly shaped surface grooves in Pd-coated Cu is shown to be an example of Poiseuille flow with simple … WebMar 9, 2024 · Capillary Channel Flow (CCF) was a versatile experiment performed on the International Space Station for studying a critical variety of inertial-capillary dominated flows key to spacecraft systems that cannot be studied on the ground. hipcamp vt

Capillary Flow in Irregular Surface Grooves - American …

WebOct 6, 2024 · We report the dynamics of capillary flow of oil in an open superoleophilic channel. The superoleophilic surface is fabricated by spin coating a layer of PDMS + n-hexane followed by candle sooting. The occurrence of various flow regimes, including the inertial, visco-inertial, and Lucas–Washburn regimes, are studied using analytical … WebOct 1, 2014 · Capillary rise in grooves (or wedges, corners), as another subtopic of capillary flow, has played an increasing important role in heat transfer devices (such as heat pipes, heat spreader) [16], [17], fluids management in low gravity environments [18], [19], polymer films [20] and many other fields. WebJun 1, 2024 · Therefore, the governing equation can be expressed as: (1) π r 2 Δ P = − 2 πrzμ d v d r where Δ P is the total pressure difference between the two capillary ends, r … home run dog park battle creek mi

Capillary Flow - an overview ScienceDirect Topics

Dynamics of capillary flow in an open superoleophilic ... - Springer

WebApr 10, 2015 · The problem of capillary-driven flow in a V-shaped surface groove is addressed. A nonlinear diffusion equation for the liquid shape is derived from mass conservation and Poiseuille flow conditions. WebAug 24, 2024 · In this work, we investigate the behaviour of liquids in symmetric open microgrooves and give a criterion for spontaneous capillary flow. To that end, we use a two-dimensional model and analyse the liquid morphologies minimizing the Gibbs energy of the system. We find that the condition of a flat liquid surface, which was hitherto … home run distances by stadiumWebJul 7, 1998 · For V-shaped surface grooves in copper, we have obtained the capillary driven flow kinetics for two liquids: unreactive 1-heptanol and eutectic Sn/Pb solder, which is … homerune totals

"WebOct 1, 2014 · Capillary rise in grooves (or wedges, corners), as another subtopic of capillary flow, has played an increasing important role in heat transfer devices (such as heat pipes, heat spreader) [16], [17], fluids management in low gravity environments [18], [19], polymer films [20] and many other fields. " - Capillary flow in irregular surface grooves

Capillary flow in irregular surface grooves

Flow of simple liquids down narrow V grooves - ResearchGate

WebDec 31, 1995 · Capillary flow on narrow strips and in V-shaped grooves Full Record Related Research Abstract Simple models for the flow of solder onto a copper metallized strip and into V-shaped groves in copper were derived and compared to … WebOct 1, 1995 · Afterward, dynamics of capillary-driven wicking flow on microstructured surfaces, such as open microchannels, 15,20 open narrow Vgrooves, 21, 22 micropillar …

Did you know?

WebMay 1, 2024 · A commonly used strategy for achieving fast and spontaneous liquid flow on solid surfaces is to construct wick structures in which liquid flow can be driven by the capillary force. WebAug 23, 2012 · Irregular conduits, complex surfaces, and porous media often manifest more than one geometric wetting condition for spontaneous capillary flows. ... Rye, R. R., Mann, J. A. Jr & Yost, F. G. 1996 The flow of liquids in surface grooves. Langmuir 12, 555 ... Weislogel, M. M. 2001 Capillary flow in containers of polygonal section. AIAA J. 39 (12), ...

WebApr 21, 2024 · Capillary flow of water in an array of open nanotextured microgrooves fabricated by femtosecond laser processing of silicon is studied as a function of temperature using high-speed video recording. In a temperature range of 23–80 °C, the produced wicking material provides extremely fast liquid flow with a maximum velocity of … WebDec 31, 2012 · In this paper the theoretical research of vane-type surface tension tank and the study of the interior corner flow are reviewed. Firstly, the conception of interior corner flow and its...

WebApr 10, 2015 · It is hypothesized that the capillary flow in any noncircular capillaries can be described by Washburn’s equation with the tube diameter replaced by the equivalent … WebCapillary water flow up a 225 mm high porous brick after it was placed in a shallow tray of water. The time elapsed after first contact with water is indicated. From the weight increase, the estimated porosity is 25%. Part of a series on Continuum mechanics Fick's laws of diffusion Laws Solid mechanics Deformation Elasticity linear Plasticity

WebSep 1, 2024 · The capillary action is a unique feature of micro-grooves with numerous applications. This spontaneous flow eliminates the need for an extra pumping device to …

WebApr 5, 2024 · Capillary flows Navier Stokes equations ABSTRACT In this article, we construct a novel one-dimensional model of microfluidic laminar flows in tapered circular … home run electric port washingtonWebAug 1, 1998 · The capillary flow along a microgroove channel was investigated both analytically and experimentally. In order to obtain insight into the phenomena, and because the governing equation had the form of a nonlinear differential equation, an analytical solution and approximate algebraic model were developed rather than using numerical … hip camp walla wallaWebJun 5, 1998 · The dynamics of capillary-driven flow was studied for water and water–glycerol mixtures in open hydrophilic microchannels (embedded in a hydrophobic matrix). The position of the advancing meniscus… Expand 120 Capillary Flow with Evaporation in Open Rectangular Microchannels. hip camp washingtonWebAug 11, 2024 · We study the dynamics of viscous capillary rising in small corners between two curved walls described by a function y = c x n with n ≥ 1. Using the Onsager principle, we derive a partial differential equation that describes the time evolution of … home run electric port washington nyWebJan 24, 1996 · For V-shaped surface grooves in copper, we have obtained the capillary driven flow kinetics for two liquids: unreactive 1-heptanol and eutectic Sn/Pb solder, … hipcamp vs airbnbWebNov 1, 1996 · The design of fluids management processes in the low-gravity environment of space requires an accurate model and description of capillarity-controlled flow in containers of irregular geometry. Here we consider the capillary rise of a fluid along an interior corner of a container following a rapid reduction in gravity. The analytical portion of the work … homerun electric polar bearWebFeb 1, 2024 · In terms of microscopic descriptions of flow in channels, work on triangular open shapes, including geometry corrective factors, has recently been presented, as well as work on rectangular... home run doughnuts