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Undulatory Swimming in Suspensions and Networks of Flexible Filaments

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If you have a question about this talk, please contact Lloyd Fung .

Microorganisms swimming through viscoelastic fluids are a common feature in naturally-occurring fluids. Approaches to modelling this behaviour normally come in two flavours: a macroscale, course-grained approach where the fluid is modelled as a continuum; and a microscale, detailed approach where the anisotropic structure within the background fluid is specifically modelled. The former approach has the benefit of speed, but in this talk I will share my experience of attempting the latter, in 3D, using high-performance computer simulations, and show how these simulations suggest the physical structure of the viscoelastic fluid directly affects the microorganism swimming through it. We see some surprising differences with 2D and investigate why this might be so.

This talk is part of the DAMTP BioLunch series.

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