Hydrodynamic interactions among large populations of swimming micro-organisms. - Archive ouverte HAL Access content directly
Journal Articles Computer Methods in Biomechanics and Biomedical Engineering Year : 2013

Hydrodynamic interactions among large populations of swimming micro-organisms.

Abstract

Bio-convection, biofilm forming or mechanics of reproduction are connected to the motility and collective behaviour of micro-organisms. For instance, spermatozoa suspensions exhibit coherent motion whose frequency and lifespan are strongly correlated to semen fertility (Moore et al. 2002). As interplays in many-bodied systems result in intricate patterns, the understanding of these requires an in-depth knowledge of the suspension microstructure and statistics. Representative and reliable statistics require a large number Np of interactive swimmers that many simulation methods can hardly afford [e.g. Np ¼ 40 in Mehandia and Nott (2008) or Np # 216 in Ishikawa et al. (2008)]. In the following, a spherical swimmer model is derived from the classical low Reynolds number framework and implemented in the force-coupling method (FCM) for large populations. Resulting statistics reveals non-trivial spatial arrangements of swimmers depending on their swimming gait.
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Dates and versions

hal-03526374 , version 1 (14-01-2022)

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Blaise Delmotte, Éric Climent, Franck Plouraboué. Hydrodynamic interactions among large populations of swimming micro-organisms.. Computer Methods in Biomechanics and Biomedical Engineering, 2013, 16 (supp. 1), pp.6-8. ⟨10.1080/10255842.2013.815881⟩. ⟨hal-03526374⟩
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