76th Annual Meeting of the APS Division of Fluid Dynamics (November 19, 2023 — November 21, 2023)

P0018: Fireworks of Viscous Fingering

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Authors

• Chi-Chian Chou, National Yang Ming Chiao Tung University
• Yuka Deki, Tokyo University of Agriculture and Technology
• Ryuta Suzuki, Tokyo University of Agriculture and Technology
• Yuichiro Nagatsu, Tokyo University of Agriculture and Technology
• Ching-Yao Chen, National Yang Ming Chiao Tung University

DOI: https://doi.org/10.1103/APS.DFD.2023.GFM.P0018

Viscous fingering occurs when a less viscous fluid displaces a more viscous counterpart. By alternating the displacing fluid, multiple fingering layers are triggered to rupture the less viscous fluid annulus. The spectacular patterns are similar to the fireworks.