71th Annual Meeting of the APS Division of Fluid Dynamics (November 18, 2018 — November 20, 2018)

V0005: Dynamics of thin films down vertical fibers

Authors

• Abolfazl Sadeghpour, University of California - Los Angeles
• Zezhi Zeng, University of California - Los Angeles
• Hangjie Ji, University of California - Los Angeles
• Claudia Falcon, University of California - Los Angeles
• Y. Sungtaek Ju, University of California - Los Angeles
• Andrea Bertozzi, University of California - Los Angeles

DOI: https://doi.org/10.1103/APS.DFD.2018.GFM.V0005

Thin liquid films flowing down vertical fibers exhibit complex and interesting interfacial dynamics, including the formation of droplets and traveling wave patterns. Such dynamics is an important consideration in various applications that take advantage of extended interfacial areas afforded by thin liquid films. Recent experiments of thin films flowing down a vertical fiber  present a wealth of new dynamics that illustrate the need for more advanced theory. Using a full lubrication model, we study the stability of traveling droplets in the experiments and their transition to isolated droplets.