Minimal two-sphere model of the generation of fluid flow at low Reynolds numbers

Details Minimal two-sphere model of the generation of fluid flow at low Reynolds numbers Minimal two-sphere model of the generation of fluid flow at low Reynolds numbers

2009-10-19

arxiv.org/abs/0910.3510v3

Physical Review E 81, 036304 (2010)

Physics

Condensed Matter

Soft Condensed Matter

5 pages, 3 figures, revised version, corrected typos

Scientific paper

10.1103/PhysRevE.81.036304

Locomotion and generation of flow at low Reynolds number are subject to severe limitations due to the irrelevance of inertia: the "scallop theorem" requires that the system have at least two degrees of freedom, which move in non-reciprocal fashion, i.e. breaking time-reversal symmetry. We show here that a minimal model consisting of just two spheres driven by harmonic potentials is capable of generating flow. In this pump system the two degrees of freedom are the mean and relative positions of the two spheres. We have performed and compared analytical predictions, numerical simulation and experiments, showing that a time-reversible drive is sufficient to induce flow.

Affiliated with

Also associated with

No associations

Rating

Minimal two-sphere model of the generation of fluid flow at low Reynolds numbers does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Minimal two-sphere model of the generation of fluid flow at low Reynolds numbers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Minimal two-sphere model of the generation of fluid flow at low Reynolds numbers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-716150