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Controlled locomotion of a droplet propelled by an encapsulated squirmer

ABSTRACT: We work out the propulsion of a viscous drop which is driven by two mechanisms: the active velocity of an encapsulated squirmer and an externally applied force acting on the squirmer. Of particular interest is the existence of a stable comoving state of drop and squirmer, allowing for cont...

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Detalles Bibliográficos
Autores principales: Kree, R., Zippelius, A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7892747/
https://www.ncbi.nlm.nih.gov/pubmed/33599874
http://dx.doi.org/10.1140/epje/s10189-021-00018-9
Descripción
Sumario:ABSTRACT: We work out the propulsion of a viscous drop which is driven by two mechanisms: the active velocity of an encapsulated squirmer and an externally applied force acting on the squirmer. Of particular interest is the existence of a stable comoving state of drop and squirmer, allowing for controlled manipulation of the viscous drop by external forcing. The velocities of droplet and squirmer, as well as the conditions for a stable comoving state are worked out analytically for the axisymmetric configuration with a general displacement of the squirmer from the center of the droplet GRAPHIC ABSTRACT: [Image: see text]