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Origin of Axially Running Waves in Liquid Bridges

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Abstract

A supercritical three-dimensional thermoconvective flow in a long non-isothermal liquid bridge with aspect ratio Γ = 1.8 is numerically investigated under terrestrial conditions. Study of the flow regimes shows that the instability sets in as an axially running wave with zero wave number, m = 0, which is a two-dimensional unsteady flow. Further increasing the applied temperature difference results in bifurcation of m = 1 wave traveling azimuthally with a slightly higher frequency. The two waves co-exist within a certain range of the temperature difference values, and finally the m = 0 wave is suppressed while the azimuthal one gets stronger.

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Authors and Affiliations

  1. Université Libre de Bruxelles, MRC, CP-165/62, 50, Ave. F.D.Roosevelt, 1050, Brussels, Belgium

    D. E. Melnikov & V. M. Shevtsova

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  1. D. E. Melnikov
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  2. V. M. Shevtsova
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Correspondence to D. E. Melnikov.

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Melnikov, D.E., Shevtsova, V.M. Origin of Axially Running Waves in Liquid Bridges. Microgravity Sci. Technol 21, 53–57 (2009). https://doi.org/10.1007/s12217-008-9086-4

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  • DOI: https://doi.org/10.1007/s12217-008-9086-4

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