ArticleThe European physical journal. E, Soft matter2020
Drag force on a particle straddling a fluid interface: Influence of interfacial deformations.
Article in The European physical journal. E, Soft matter, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Rolling of soft microbots with tunable traction.Science advances · 2023Article
- Particle rotation speeds up capillary interactions.The European physical journal. E, Soft matter · 2021Article
- Microspheres viscous drag at a deformed fluid interface: particle's weight and electrical charges effects.The European physical journal. E, Soft matter · 2021Article
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Authors and funding
4 authors.
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Abstract
We numerically investigate the influence of interfacial deformations on the drag force exerted on a particle straddling a fluid interface. We perform finite element simulations of the two-phase flow system in a bounded two-dimensional geometry. The fluid interface is modeled with a phase-field method which is coupled to the Navier-Stokes equations to solve for the flow dynamics. The interfacial deformations are caused by the buoyant weight of the particle, which results in curved menisci. We compute drag coefficients as a function of the three-phase contact angle, the viscosity ratio of the two fluids, and the particle density. Our results show that, for some parameter values, large drag forces are not necessarily correlated with large interfacial distortions and that a lower drag may actually be achieved with non-flat interfaces rather than with unperturbed ones.
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Registered trials
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