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Thermocapillary Flow and Coalescences of Heterogeneous Bubble Size Diameter in a Rotating Cylinder: 3D Study

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Abstract

Two dimensional axisymmetric and three-dimensional VOF simulations of gas/liquid transient flow were performed using a multiphase flow algorithm based on the finite-volume method. The results for motion of a multiple bubbles of a heterogeneous sizes aligned horizontally and perpendicular to a hot surface incorporating thermocapillary forces in a rotating liquid in a zero-gravity environment have been presented for the first time. No bubbles broke in any of the cases observed. The results also show that collision and agglomeration of bubbles of unequal sizes diameter are different from those of similar size diameters presented from earlier research work of Alhendal et al. Acta Astronaut. 117, 484–496 (2015). Different flow patterns such as thermocapillary bubble migration, collision, and stream function were observed and presented for the 2-D and 3-D models.

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Authors and Affiliations

  1. College of Technological Studies (CTS), Public Authority for Applied Education and Training (PAAET), P. O. Box 5351, Hawally, zip code 32084, State of Kuwait

    Yousuf Alhendal

  2. School of Mechanical, Aerospace and Civil Engineering, The University of Manchester, George Begg Building, Sackville Street, Manchester, M13 9PL, UK

    Ali Turan

Authors
  1. Yousuf Alhendal
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  2. Ali Turan
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Correspondence to Yousuf Alhendal.

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We wish to confirm that there are no known conflicts of interest associated with this publication: Thermocapillary Flow and Coalescences of Heterogeneous Bubble Size Diameter in a Rotating Cylinder: 3D Study” and there has been no significant financial support for this work that could have influenced its outcome.

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Alhendal, Y., Turan, A. Thermocapillary Flow and Coalescences of Heterogeneous Bubble Size Diameter in a Rotating Cylinder: 3D Study. Microgravity Sci. Technol. 28, 639–650 (2016). https://doi.org/10.1007/s12217-016-9521-x

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  • DOI: https://doi.org/10.1007/s12217-016-9521-x

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