TY - JOUR
T1 - Unsteady wave pattern generation by water striders
AU - Steinmann, Thomas
AU - Arutkin, Maxence
AU - Cochard, Précillia
AU - Raphaël, Elie
AU - Casas, Jérôme
AU - Benzaquen, Michael
N1 - Publisher Copyright:
© 2018 Cambridge University Press.
PY - 2018/8/10
Y1 - 2018/8/10
N2 - We perform an experimental and theoretical study of the wave pattern generated by the leg strokes of water striders during a propulsion cycle. Using the synthetic schlieren method, we are able to measure the dynamic response of the free surface accurately. In order to match experimental conditions, we extend Bühler's theory of impulsive forcing (J. Fluid Mech., vol. 573, 2007, pp. 211-236) to finite depth. We demonstrate the improved ability of this approach to reproduce the experimental findings, once the observed continuous forcing and hence non-zero temporal and spatial extent of the leg strokes is also taken into account.
AB - We perform an experimental and theoretical study of the wave pattern generated by the leg strokes of water striders during a propulsion cycle. Using the synthetic schlieren method, we are able to measure the dynamic response of the free surface accurately. In order to match experimental conditions, we extend Bühler's theory of impulsive forcing (J. Fluid Mech., vol. 573, 2007, pp. 211-236) to finite depth. We demonstrate the improved ability of this approach to reproduce the experimental findings, once the observed continuous forcing and hence non-zero temporal and spatial extent of the leg strokes is also taken into account.
KW - capillary waves
KW - wave-structure interactions
KW - waves/free-surface flows
U2 - 10.1017/jfm.2018.365
DO - 10.1017/jfm.2018.365
M3 - Article
AN - SCOPUS:85048052124
SN - 0022-1120
VL - 848
SP - 370
EP - 387
JO - Journal of Fluid Mechanics
JF - Journal of Fluid Mechanics
ER -