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

K. Lippera; O. Dauchot; S. Michelin; M. Benzaquen

doi:10.1017/jfm.2019.130

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

K. Lippera
, O. Dauchot
, S. Michelin
, M. Benzaquen

ESPCI

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

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 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.

Original language	English
Article number	R1
Journal	Journal of Fluid Mechanics
Volume	866
DOIs	https://doi.org/10.1017/jfm.2019.130
Publication status	Published - 10 May 2019

Keywords

flow-structure interactions
propulsion

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10.1017/jfm.2019.130

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title = "No net motion for oscillating near-spheres at low Reynolds numbers",

abstract = "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 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.",

keywords = "flow-structure interactions, propulsion",

author = "K. Lippera and O. Dauchot and S. Michelin and M. Benzaquen",

note = "Publisher Copyright: {\textcopyright} 2019 Cambridge University Press.",

year = "2019",

month = may,

day = "10",

doi = "10.1017/jfm.2019.130",

language = "English",

volume = "866",

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T1 - No net motion for oscillating near-spheres at low Reynolds numbers

AU - Lippera, K.

AU - Dauchot, O.

AU - Michelin, S.

AU - Benzaquen, M.

PY - 2019/5/10

Y1 - 2019/5/10

N2 - 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 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.

AB - 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 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.

KW - flow-structure interactions

KW - propulsion

U2 - 10.1017/jfm.2019.130

DO - 10.1017/jfm.2019.130

M3 - Article

AN - SCOPUS:85062568371

SN - 0022-1120

VL - 866

JO - Journal of Fluid Mechanics

JF - Journal of Fluid Mechanics

M1 - R1

ER -

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

Abstract

Keywords

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