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Modes of synchrony in self-propelled pentanol drops
Tanushree Roy1, Sudhanshu Shekhar Chaurasia1, José-Manuel Cruz2
1Department of Physics, IIT Bombay, Mumbai 400076, Maharashtra, India. tanuroy.phy@gmail.com.
Soft Matter
|February 11, 2022
Summary
Synchrony in pentanol drops at the air-water interface was studied. Multiple drops exhibited complex anti-phase and relay synchronization patterns, revealing coupled dynamics in self-propelled systems.
Area of Science:
- Fluid dynamics
- Nonlinear dynamics
- Complex systems
Background:
- Pentanol drops exhibit autonomous oscillations and self-propelled motion at the air-water interface driven by Marangoni forces.
- Understanding the collective behavior of multiple drops is crucial for complex fluid dynamics.
- Previous studies focused on single drop dynamics and Marangoni-driven motion.
Purpose of the Study:
- To investigate various modes of synchrony in populations of two, three, and four pentanol drops.
- To analyze the coupled dynamics and synchronization phenomena in a confined channel.
- To characterize the self-propelled motion of pentanol drops as a function of volume and inter-drop interactions.
Main Methods:
- Experimental setup using a linear rectangular channel at the air-water interface.
- Observation of autonomous oscillations of single 1-pentanol drops.
- Systematic study of self-propelled motion of 1-pentanol drops with varying volumes.
- Analysis of coupled dynamics for populations of two, three, and four pentanol drops.
Main Results:
- Single pentanol drops exhibit continuous motion due to Marangoni forces.
- Two pentanol drops demonstrated anti-phase oscillations.
- Three pentanol drops showed relay synchronization (consecutive pairs out-of-phase, alternate drops in-phase).
- Four pentanol drops displayed relay synchrony and out-of-phase oscillations between two pairs (with in-phase oscillations within each pair).
Conclusions:
- Pentanol drop populations exhibit diverse synchronization modes, including anti-phase and relay synchrony.
- The number of drops significantly influences the observed collective dynamics and synchronization patterns.
- These findings contribute to understanding complex synchronization phenomena in interfacial fluid systems.
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