Abstract
In this study, effect of lateral vibrations on the thermo-solutocapillary convection and surface behavior in a liquid bridge of toluene/n-hexane solution has been studied numerically under microgravity. The Navier-Stokes equations coupled with the concentration diffusion equation are solved on a staggered grid, and the level set approach is used to capture the deformation of free surface. Present results indicate the interface deformation is convex below the midheight of the liquid bridge and relatively complex at the upper height of the liquid bridge under different frequency vibrations. The lateral vibrations restrain radial and axial velocities on the surface under lateral vibrations with frequencies of 5 Hz and 10 Hz. While the radial and axial velocities on the surface increase under the lateral vibration with frequency of 15 Hz, which illustrates that the effect of lateral vibrations on the free surface has uncertainty.
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The present work is supported financially by the National Natural Science Foundation of China under the grants of 51676031 and 51976087.
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Liang, R., Zhao, S., Fan, J. et al. Effect of Horizontal Vibrations on Thermo-Solutocapillary Convection and Free Surface of Liquid Bridge. Microgravity Sci. Technol. 32, 847–855 (2020). https://doi.org/10.1007/s12217-020-09809-9
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DOI: https://doi.org/10.1007/s12217-020-09809-9