Experimental studies on the control of slug flow by interfacial forces in silylated glass capillaries

Z. Hórvölgyi, E. Kiss, János Pintér

Research output: Article

8 Citations (Scopus)

Abstract

The effect of a solid surface on the resistance of a three phase contact line to motion was investigated in silylated, cylindrical and horizontal glass capillaries. The solid surface wetting property was modified by silylation procedures and prewetting with water or dodecane. To compare the calculated and measured values of different pressure drops the linear flow velocity and the dynamic contact angles were measured as a function of the hydrostatic pressure difference (driving force). The wetting heterogeneity of capillary surfaces, caused by water-prewetting and different silylation procedures, was suggested to be responsible for the capillary pressure drop which could not be described by the Laplace term alone.

Original languageEnglish
Pages (from-to)257-270
Number of pages14
JournalColloids and Surfaces
Volume55
Issue numberC
DOIs
Publication statusPublished - 1991

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Glass
Pressure drop
Wetting
Capillarity
Hydrostatic pressure
Flow velocity
Contact angle
Water

Cite this

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abstract = "The effect of a solid surface on the resistance of a three phase contact line to motion was investigated in silylated, cylindrical and horizontal glass capillaries. The solid surface wetting property was modified by silylation procedures and prewetting with water or dodecane. To compare the calculated and measured values of different pressure drops the linear flow velocity and the dynamic contact angles were measured as a function of the hydrostatic pressure difference (driving force). The wetting heterogeneity of capillary surfaces, caused by water-prewetting and different silylation procedures, was suggested to be responsible for the capillary pressure drop which could not be described by the Laplace term alone.",
author = "Z. H{\'o}rv{\"o}lgyi and E. Kiss and J{\'a}nos Pint{\'e}r",
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T1 - Experimental studies on the control of slug flow by interfacial forces in silylated glass capillaries

AU - Hórvölgyi, Z.

AU - Kiss, E.

AU - Pintér, János

PY - 1991

Y1 - 1991

N2 - The effect of a solid surface on the resistance of a three phase contact line to motion was investigated in silylated, cylindrical and horizontal glass capillaries. The solid surface wetting property was modified by silylation procedures and prewetting with water or dodecane. To compare the calculated and measured values of different pressure drops the linear flow velocity and the dynamic contact angles were measured as a function of the hydrostatic pressure difference (driving force). The wetting heterogeneity of capillary surfaces, caused by water-prewetting and different silylation procedures, was suggested to be responsible for the capillary pressure drop which could not be described by the Laplace term alone.

AB - The effect of a solid surface on the resistance of a three phase contact line to motion was investigated in silylated, cylindrical and horizontal glass capillaries. The solid surface wetting property was modified by silylation procedures and prewetting with water or dodecane. To compare the calculated and measured values of different pressure drops the linear flow velocity and the dynamic contact angles were measured as a function of the hydrostatic pressure difference (driving force). The wetting heterogeneity of capillary surfaces, caused by water-prewetting and different silylation procedures, was suggested to be responsible for the capillary pressure drop which could not be described by the Laplace term alone.

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JO - Colloids and Surfaces

JF - Colloids and Surfaces

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