Modeling a spheroidal microswimmer and cooperative swimming in thin films
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
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2016
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| _version_ | 1866910464847380480 |
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| author | Theers, Mario Westphal, Elmar Gompper, Gerhard Winkler, Roland G. |
| author_facet | Theers, Mario Westphal, Elmar Gompper, Gerhard Winkler, Roland G. |
| contents | We propose a hydrodynamic model for a spheroidal microswimmer with two tangential surface velocity modes. This model is analytically solvable and reduces to Lighthill's and Blake's spherical squirmer model in the limit of equal major and minor semi-axes. Furthermore, we present an implementation of such a spheroidal squirmer by means of multiparticle collision dynamics simulations. We investigate its properties as well as the scattering of two spheroidal squirmers in a slit geometry. Thereby we find a stable fixed point, where two pullers swim cooperatively forming a wedge-like conformation with a small constant angle. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_1606_07342 |
| institution | arXiv |
| publishDate | 2016 |
| record_format | arxiv |
| spellingShingle | Modeling a spheroidal microswimmer and cooperative swimming in thin films Theers, Mario Westphal, Elmar Gompper, Gerhard Winkler, Roland G. Biological Physics Soft Condensed Matter Fluid Dynamics We propose a hydrodynamic model for a spheroidal microswimmer with two tangential surface velocity modes. This model is analytically solvable and reduces to Lighthill's and Blake's spherical squirmer model in the limit of equal major and minor semi-axes. Furthermore, we present an implementation of such a spheroidal squirmer by means of multiparticle collision dynamics simulations. We investigate its properties as well as the scattering of two spheroidal squirmers in a slit geometry. Thereby we find a stable fixed point, where two pullers swim cooperatively forming a wedge-like conformation with a small constant angle. |
| title | Modeling a spheroidal microswimmer and cooperative swimming in thin films |
| topic | Biological Physics Soft Condensed Matter Fluid Dynamics |
| url | https://arxiv.org/abs/1606.07342 |