TY - JOUR
T1 - No net motion for oscillating near-spheres at low Reynolds numbers
AU - Lippera, K.
AU - Dauchot, O.
AU - Michelin, S.
AU - Benzaquen, M.
N1 - Publisher Copyright:
© 2019 Cambridge University Press.
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 -