Measurement of fluid flow generated by artificial cilia

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...

Artificial cilia fabricated using magnetic fiber drawing generate substantial fluid flow

Microscopic hair-like structures, such as cilia, exist ubiquitously in nature and are used by various organisms for transportation purposes. Many efforts have been made to mimic the fluid pumping function of cilia, but most of the fabrication processes of these ‘‘artificial cilia’’ are tedious and expensive, hindering their practical applications. In this paper, an attractive and potentially co...

Fluid mechanics of nodal flow due to embryonic primary cilia.

Breaking of left-right symmetry is crucial in vertebrate development. The role of cilia-driven flow has been the subject of many recent publications, but the underlying mechanisms remain controversial. At approximately 8 days post-fertilization, after the establishment of the dorsal-ventral and anterior-posterior axes, a depressed structure is found on the ventral side of mouse embryos, termed ...

A Study of Flow and Mixing in Bubbly Gas-Liquid Pipe Flow Generated by a Grid

The spreading of a tracer in a bubbly two-phase grid-generated turbulent flow system is studied. In this work both particle image velocimetry (PIV) and planer laser-induced <span style="font-size: 10pt...