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On the experimental analysis of the linear dynamics of slender axisymmetric liquid bridges

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Abstract

There have been many theoretical analyses of the linear dynamics of liquid bridges using both analytical and numerical approaches. Experimental studies have been far fewer, probably due to the technical difficulties involved. In this paper, a procedure to perform experiments dealing with the linear dynamics of slender axisymmetric liquid bridges is discussed. This procedure allows one to study the response of the liquid bridge to a time-dependent microgravity field without knowing previously the surface tension associated with the interface and the viscosity of the fluid. In fact, the values of these quantities are determined in the course of the experiment, which can be regarded as an effective way to measure them. The measurement of the surface tension and viscosity is illustrated by replacing the experimental data with a numerical simulation. More precisely, the solution of the Cosserat model is perturbed by introducing a random function to simulate the experimental data. In this way, one can easily analyse the influence of technical aspects on the results; for instance, the number of images taken per unit time and their resolution.

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  1. Departamento de Electronica e Ingeniera Electromecánica, Escuela de Ingenieras Industriales, Universidad de Extremadura, Apdo. Correos 382, E-06071, Badajoz, Spain

    J. M. Montanero

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Montanero, J.M. On the experimental analysis of the linear dynamics of slender axisymmetric liquid bridges. Microgravity Sci. Technol 15, 3–11 (2004). https://doi.org/10.1007/BF02870964

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  • DOI: https://doi.org/10.1007/BF02870964

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