Water drop impingement on graphite substrates with random dilute defects

NCUIR > Engineering College > Department of Chemical and Materials Engineering > journal & Dissertation > Item 987654321/101059

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Title:	Water drop impingement on graphite substrates with random dilute defects
Authors:	曹恆光;Pittoni, Paola G.;Tsao, Heng-Kwong;Lin, Shi-Yow
Contributors:	工學院化學工程與材料工程學系
Keywords:	Chemistry;Condensed matter: structure, mechanical and thermal properties;Defects;Dilution;Drop impact;Droplets;Drops and bubbles;Exact sciences and technology;Fluid dynamics;Friction;Fundamental areas of phenomenology (including applications);General and physical chemistry;Graphite;Impingement;Nonhomogeneous flows;Physics;Pinned behavior;Random dilute defects;Solid-fluid interfaces;Solid-liquid interface;Surface physical chemistry;Surfaces and interfaces;thin films and whiskers (structure and nonelectronic properties);Triple line dynamics;Water drops;Weber number;Wetting
Date:	2014-02-01
Issue Date:	2026-04-21 14:22:22 (UTC+8)
Publisher:	Elsevier Inc.;Amsterdam: Elsevier Inc
Abstract:	摘要： Droplet impingement experiments for a wide range of Weber numbers were conducted by digitizing silhouettes of impacting water drops onto a tailored grinded graphite substrate, typified by randomly distributed cavities on a generally smooth surface. The aim was to investigate if the anchoring of the triple line, due to friction forces generated by dilute superficial defects, could be observed for drop impingement experiments. During the early inertially dominated spreading phase, the drops showed similar behaviors independently of the initial impact velocities. However, just after this phase, droplets impacting at low Weber numbers indeed exhibited this peculiar friction-induced pinned configuration. 出版者： Amsterdam: Elsevier Inc 出版日期： 2014-02-01 出處： Experimental thermal and fluid science, 2014-02, Vol.53, p.142-146 版權： 2013 Elsevier Inc. 版權： 2015 INIST-CNRS 識別號： ISSN: 0894-1777 識別號： EISSN: 1879-2286 識別號： DOI: 10.1016/j.expthermflusci.2013.11.021
Appears in Collections:	[Department of Chemical and Materials Engineering] journal & Dissertation

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