No net motion for oscillating near-spheres at low Reynolds numbers

Autor:	Lippera, Kevin, Dauchot, Olivier, Michelin, Sébastien, Benzaquen, Michael
Rok vydání:	2019
Předmět:	Physics - Fluid Dynamics Condensed Matter - Soft Condensed Matter
Zdroj:	JFM, 866, (2019) R1
Druh dokumentu:	Working Paper
DOI:	10.1017/jfm.2019.130
Popis:	We investigate the flow around an oscillating nearly-spherical particle at low, yet non-vanishing, Reynolds numbers, and the potential resulting locomotion. We analytically demonstrate that no net motion can arise up to order one in Re and order one in the asphericity parameter, regardless of the particle's shape. Therefore, geometry-induced acoustic streaming propulsion, if any, must arise at higher order. Comment: 10 pages, no figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1902.03556 Zobrazit plný text záznamu View this record from Arxiv