Unsteady wave pattern generation by water striders
| Autor: | Raphaël, Elie, Steinmann, Thomas, Arutkin, Maxence, Cochard, Précillia, Raphael, Elie, Casas, Jérôme, Benzaquen, Michael |
|---|---|
| Přispěvatelé: | Gulliver (UMR 7083), Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut de recherche sur la biologie de l'insecte UMR7261 (IRBI), Université de Tours (UT)-Centre National de la Recherche Scientifique (CNRS), Ecologie et Neuro-Ethologie Sensorielles (ENES), Université Jean Monnet [Saint-Étienne] (UJM), Laboratoire d'hydrodynamique (LadHyX), École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Université de Tours-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2017 |
| Předmět: |
0209 industrial biotechnology
Capillary wave Synthetic schlieren FOS: Physical sciences 02 engineering and technology Propulsion 01 natural sciences Measure (mathematics) waves free-surface flows 010305 fluids & plasmas 020901 industrial engineering & automation capillary waves 0103 physical sciences Physics - Biological Physics [PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph] Physics Forcing (recursion theory) Mechanical Engineering Fluid Dynamics (physics.flu-dyn) Mechanics Physics - Fluid Dynamics Pattern generation Condensed Matter Physics Mechanics of Materials Biological Physics (physics.bio-ph) Free surface Spatial extent wave-structure interactions |
| Zdroj: | Journal of Fluid Mechanics Journal of Fluid Mechanics, Cambridge University Press (CUP), 2018, 848, pp.370-387. ⟨10.1017/jfm.2018.365⟩ |
| ISSN: | 0022-1120 1469-7645 |
| DOI: | 10.48550/arxiv.1711.01825 |
| Popis: | 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 B\"uhler's theory of impulsive forcing (\cite{buhler}) 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. Comment: 19 pages, 3 figs, 2 tabs |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|