Rotational Maneuvers of Copepod Nauplii at Low Reynolds Number
| Autor: | Lauren N. Block, Kacie T. M. Niimoto, Kyleigh J. Kuball, Daisuke Takagi, Petra H. Lenz |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
business.product_category
Geometry swimming microorganism lcsh:Thermodynamics Rotation 01 natural sciences 010305 fluids & plasmas Airplane law.invention symbols.namesake law lcsh:QC310.15-319 0103 physical sciences 010306 general physics lcsh:QC120-168.85 Fluid Flow and Transfer Processes Appendage Physics Mechanical Engineering Yaw Rotation around a fixed axis Reynolds number Condensed Matter Physics locomotion Aileron reorientation symbols lcsh:Descriptive and experimental mechanics business Principal axis theorem |
| Zdroj: | Fluids Volume 5 Issue 2 Fluids, Vol 5, Iss 78, p 78 (2020) |
| ISSN: | 2311-5521 |
| DOI: | 10.3390/fluids5020078 |
| Popis: | Copepods are agile microcrustaceans that are capable of maneuvering freely in water. However, the physical mechanisms driving their rotational motion are not entirely clear in small larvae (nauplii). Here we report high-speed video observations of copepod nauplii performing acrobatic feats with three pairs of appendages. Our results show rotations about three principal axes of the body: yaw, roll, and pitch. The yaw rotation turns the body to one side and results in a circular swimming path. The roll rotation consists of the body spiraling around a nearly linear path, similar to an aileron roll of an airplane. We interpret the yaw and roll rotations to be facilitated by appendage pronation or supination. The pitch rotation consists of flipping on the spot in a maneuver that resembles a backflip somersault. The pitch rotation involved tail bending and was not observed in the earliest stages of nauplii. The maneuvering strategies adopted by plankton may inspire the design of microscopic robots, equipped with suitable controls for reorienting autonomously in three dimensions. |
| Databáze: | OpenAIRE |
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