Výsledky vyhledávání - "Pedley, T. A."

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Pairwise scattering and bound states of spherical microorganisms

Autor: Darveniza, C., Ishikawa, T., Pedley, T. J., Brumley, D. R.

The dynamic interactions between pairs of swimming microorganisms underpin the collective behaviour of larger suspensions, but accurately calculating pairwise collisions has typically required the use of numerical simulations in which hydrodynamic in

Externí odkaz: http://arxiv.org/abs/2111.14299

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Rheology of a concentrated suspension of spherical squirmers: monolayer in simple shear flow

Autor: Ishikawa, T., Brumley, D. R., Pedley, T. J.

A concentrated, vertical monolayer of identical spherical squirmers, which may be bottom-heavy, and which are subjected to a linear shear flow, is modelled computationally by two different methods: Stokesian dynamics, and a lubrication-theory-based m

Externí odkaz: http://arxiv.org/abs/2004.13944

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Stability of dancing Volvox

Autor: Ishikawa, Takuji, Pedley, T. J., Drescher, K., Goldstein, Raymond E.

Publikováno v: J. Fluid Mech. 903 (2020) A11

Biflagellate algal cells of the genus Volvox form spherical colonies that propel themselves, vertically upwards in still fluid, by the coordinated beating of thousands of flagella, that also cause the colonies to rotate about their vertical axes. Whe

Externí odkaz: http://arxiv.org/abs/2001.02825

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Squirmers with swirl -- a model for $Volvox$ swimming

Autor: Pedley, T. J., Brumley, D. R., Goldstein, R. E.

Colonies of the green alga $Volvox$ are spheres that swim through the beating of pairs of flagella on their surface somatic cells. The somatic cells themselves are mounted rigidly in a polymeric extracellular matrix, fixing the orientation of the fla

Externí odkaz: http://arxiv.org/abs/1512.02931

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Run and tumble chemotaxis in a shear flow: the effect of temporal comparisons and other complications

Autor: Locsei, J. T., Pedley, T. J.

Escherichia coli is a motile bacterium that moves up a chemoattractant gradient by performing a biased random walk composed of alternating runs and tumbles. This paper presents calculations of the chemotactic drift velocity vd (the mean velocity up t

Externí odkaz: http://arxiv.org/abs/0804.2352

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