NDLI: Dimensional Effects in Interfacial Tension Micro-Scale Measurements

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Abdullatif, M. Alteraifi
Copyright Year	2003
Abstract	Three different experimental configurations to measure oilwater interfacial tension (IFT) are developed using micropipet manipulation technique. By applying the minimum suction pressure required for the interface to flow in a micro-size pipet, IFT is calculated using Young-Laplace equation by achieving mechanical equilibrium condition for the two liquids separated by an interface. The three different configurations produced similar results for critical pressure measurements versus pipet diameter. IFT measurements using micropipet technique found to fall within two regimes: geometry-dependent regime and geometry-independent one. The notion of geometry-dependent IFT seemingly rises from the presence of a layer of an “ultra-structured” liquid exists near the solid surface. The layering effect appears to vanish at a pipet diameter of 40 μm, which is only applicable only to the present system comprised of crude oil, water, and glass. The IFT value obtained in the geometric-dependent regime is found to be in a good agreement with the value obtained from spinning droplet technique.
Sponsorship	Fluids Engineering Division
Starting Page	343
Ending Page	349
Page Count	7
File Format	PDF
ISBN	0791836975
DOI	10.1115/FEDSM2003-45145
e-ISBN	0791836738
Volume Number	Volume 2: Symposia, Parts A, B, and C
Conference Proceedings	ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference
Language	English
Publisher Date	2003-07-06
Publisher Place	Honolulu, Hawaii, USA
Access Restriction	Subscribed
Subject Keyword	Suction Water Spinning (textile) Microscale devices Equilibrium (physics) Glass Flow (dynamics) Pressure Geometry Spin (aerodynamics) Crude oil Drops Surface tension Pressure measurement
Content Type	Text
Resource Type	Article

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