Analysis of fluid flow around a beating artificial cilium

Analysis of fluid flow around a beating artificial cilium

Biological cilia are found on surfaces of some microorganisms and on surfaces of many eukaryotic cells where they interact with the surrounding fluid. The periodic beating of the cilia is asymmetric, resulting in directed swimming of unicellular organisms or in generation of a fluid flow above a ciliated surface in multicellular ones. Following the biological example, externally driven artifici...

University of Groningen Fluid flow due to collective non-reciprocal motion of symmetrically-beating artificial cilia

Fluid flow due to collective non-reciprocal motion of symmetrically-beating artificial cilia.

Using a magneto-mechanical solid-fluid numerical model for permanently magnetic artificial cilia, we show that the metachronal motion of symmetrically beating cilia establishes a net pressure gradient in the direction of the metachronal wave, which creates a unidirectional flow. The flow generated is characterised as a function of the cilia spacing, the length of the metachronal wave, and a dim...

numerical investigation of transient laminar flow of a giesekus viscoelastic fluid around a circular cylinder

in this paper, the transient inertial viscoelastic flow around a circular cylinder is investigated numerically. a second order finite-volume method is used to increase the numerical accuracy. here, the giesekus model is used as the constitutive equation. this nonlinear model has prominent ability in describing normal stress differences and viscosity in power-law regions. the impacts of the elas...

A Matlab environment for analysis of fluid flow and transport around a translating sphere

We present a software environment, implemented in Matlab, which addresses a sphere moving steadily in a fluid. The sphere leaks solute which is transported through the fluid. The environment allows the fluid flow to be approximated with Stokes’ flow, or the Navier–Stokes equations can be solved numerically. Subsequently, the advection–diffusion equation for the concentration of the solute is so...