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Experimental Investigation on the Static Equilibria and Dynamics of Liquid Bridges

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Carte Experimental Investigation on the Static Equilibria and Dynamics of Liquid Bridges Andrew Howard Resnick
Codul Libristo: 08287359
Editura Biblioscholar, martie 2013
A liquid bridge is a volume of liquid held between two or more solid supports. In the case of small... Descrierea completă
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A liquid bridge is a volume of liquid held between two or more solid supports. In the case of small disk supports with a sharp edge, the contact line between the bridge and the support disk will be anchored along the edge of the disk. For these cases the solid presents a geometrical singularity and the contact angle is indeterminate within a given range. This dissertation presents research conducted on liquid bridges with anchored contact lines. The three major topics covered are: determining the role of support geometry on static equilibria, liquid bridge dynamical behavior, and forces exerted by a liquid bridge on a support structure. The work was primarily experimental and conducted in a "Plateau tank" that allowed for the simulation of equivalent low-gravity conditions. The main thrust of the experimental work involved the use of a high resolution optical measurement system for imaging the dynamic zone shape, measurement of the static and dynamic contact angles and non-invasive analysis of excited surface modes. The liquid bridge was manipulated by computer controlled linear actuators which allowed precise control over the physical characteristics of the bridge. Experiments have been carried out to locate a bifurcation point along the maximum volume axisymmetric stability margin. Below the critical slenderness the bifurcation from an axisymmetric to a stable nonaxisymmetric configuration is supercritical. However, above this critical slenderness, the bifurcation is subcritical. A series of experiments analyzed the effect on axisymmetric bridge stability by using support disks of different radii, The shape behavior as transition points were approached, as well as the limiting case of a vanishing support radius was investigated. Experiments were performed to determine the resonant frequencies of axisymmetric bridges subject to lateral vibrations. Anomolous results led to a series of experiments to characterize nonlinearities present in the dynamic bridge shape.

Informații despre carte

Titlu complet Experimental Investigation on the Static Equilibria and Dynamics of Liquid Bridges
Limba engleză
Legare Carte - Carte broșată
Data publicării 2013
Număr pagini 208
EAN 9781288915682
ISBN 9781288915682
Codul Libristo 08287359
Editura Biblioscholar
Greutatea 381
Dimensiuni 189 x 246 x 11
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