Optimal ciliary locomotion of axisymmetric microswimmers

  title={Optimal ciliary locomotion of axisymmetric microswimmers},
  author={Hanliang Guo and Hai-Ping Zhu and Ruowen Liu and Marc Bonnet and Shravan K. Veerapaneni},
  journal={Journal of Fluid Mechanics},
Abstract Many biological microswimmers locomote by periodically beating the densely packed cilia on their cell surface in a wave-like fashion. While the swimming mechanisms of ciliated microswimmers have been extensively studied both from the analytical and the numerical point of view, optimisation of the ciliary motion of microswimmers has received limited attention, especially for non-spherical shapes. In this paper, using an envelope model for the microswimmer, we numerically optimise the… 
Shape optimization of peristaltic pumps transporting rigid particles in Stokes flow
This paper presents a computational approach for finding the optimal shapes of peristaltic pumps transporting rigid particles in Stokes flow. In particular, we consider shapes that minimize the rate


On the squirming motion of nearly spherical deformable bodies through liquids at very small reynolds numbers
A spherical deformable body can swim, at very small Reynolds numbers, by performing small oscillations of shape. However, the mean velocity of translation is a t most of the order of the square of
Spontaneous creation of macroscopic flow and metachronal waves in an array of cilia.
It is shown that an aligned array of cilia is able to spontaneously break the left-right symmetry and to create a global average flow, which might be its major advantage.
Optimal feeding is optimal swimming for all P\'eclet numbers
Cells swimming in viscous fluids create flow fields which influence the transport of relevant nutrients, and therefore their feeding rate. We propose a modeling approach to the problem of optimal
Mixed and hybrid finite element methods
HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and
Motile cilia
  • 2017
Mixed and Hybrid Finite Element
  • 1991
The bank of swimming organisms at the micron scale (BOSO-Micro)
A biophysical survey of the available experimental data produced to date on the characteristics of motile behaviour in unicellular microswimmers, using theoretical biophysical models for the locomotion of cells within the same taxonomic groups of organisms as a means of rationalising the raw material.
Swimming microorganisms acquire optimal efficiency with multiple cilia
It is found that there exists an optimal number density of cilia, which provides the maximum propulsion efficiency for all ciliates, and this will help to understand the mechanistic benefits of multiple cilia and open up an area of research that integrates fluid mechanics, biophysics, and microbiology.
Minimum Dissipation Theorem for Microswimmers.
An alternative definition of the energetic efficiency of microswimmers that, unlike the commonly used Lighthill efficiency, can never exceed unity is proposed and validated by calculating the efficiency limits of spheroidal swimmers.
Optimal slip velocities of micro-swimmers with arbitrary axisymmetric shapes
Abstract This article presents a computational approach for determining the optimal slip velocities on any given shape of an axisymmetric micro-swimmer suspended in a viscous fluid. The objective is