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Deformation of a floating liquid marble
Chin Hong Ooi1, Raja K Vadivelu, James St John
1Queensland Micro- and Nanotechnology Centre, Griffith University, 170 Kessels Road, 4111 Queensland, Australia. nam-trung.nguyen@griffith.edu.au.
Soft Matter
|April 18, 2015
Summary
Liquid marbles, which are soft floating particles, deform differently than rigid spheres. This study characterizes their shape, finding that small marbles fit rigid models, while larger ones require an oblate spheroid model.
Area of Science:
- Fluid dynamics
- Soft matter physics
- Surface science
Background:
- Rigid spherical particles on liquids deform the surface due to gravity and surface tension.
- Floating soft particles, like liquid marbles, exhibit deformation of both the liquid surface and the particle itself.
Purpose of the Study:
- To investigate the deformation of floating liquid marbles.
- To characterize the height and aspect ratio of liquid marbles.
- To compare experimental results with theoretical models for rigid and soft particles.
Main Methods:
- Experimental observation of liquid marble deformation.
- Characterization of liquid marble height and aspect ratio.
- Comparison of experimental data with theoretical models.
Main Results:
- Theoretical models for rigid spherical particles accurately describe small liquid marbles.
- Larger liquid marbles necessitate an oblate liquid spheroid model for accurate description.
- The study identifies limitations of both rigid and oblate spheroid models for liquid marbles.
Conclusions:
- Liquid marble deformation is dependent on their size.
- A transition from rigid sphere to oblate spheroid behavior is observed with increasing liquid marble size.
- Understanding these deformation characteristics is crucial for applications involving liquid marbles.
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