Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/94005
Title: | Valve-mediated flow control in salp-like locomotion | Authors: | Bi, X Tang, H Zhu, Q |
Issue Date: | May-2022 | Source: | Physics of fluids, May 2022, v. 34, no. 5, 051913 | Abstract: | By using an axisymmetric model, we numerically investigate the underlying fluid dynamics of a salp-like swimmer consisting of a deformable shell, a front valve, and a back valve. Through coordinated shell inflation/deflation and valve opening/closing, uni-directional flow is created inside the body and in the wake, which provides thrust for forward motion. Our results prove that this method is capable of sustained locomotion. The uni-directional internal flow successfully reduces energy loss due to dissipation inside the body. Moreover, due to hydrodynamic interactions among different body parts (i.e., the shell and the two valves), the energy expenditure of one part may be recovered by others. In addition to its benefit to energy efficiency, this phenomenon also implies that the valves may be passively activated by harvesting energy spent by the shell, so that the mechanical design can be simplified. Parametric studies have been conducted to determine the effect of the stroke ratio. Furthermore, the locomotion performance of the salp-like system has been compared with that of a squid-like system in which the refilling flow and the jet are in opposite directions. | Publisher: | American Institute of Physics | Journal: | Physics of fluids | ISSN: | 1070-6631 | EISSN: | 1089-7666 | DOI: | 10.1063/5.0096004 | Rights: | © 2022 Author(s). This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Xiaobo Bi (毕晓波), Hui Tang (唐辉), and Qiang Zhu (朱强), "Valve-mediated flow control in salp-like locomotion", Physics of Fluids 34, 051913 (2022) and may be found at https://doi.org/10.1063/5.0096004. |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
051913_1_online.pdf | 3.74 MB | Adobe PDF | View/Open |
Page views
55
Last Week
1
1
Last month
Citations as of Apr 28, 2024
Downloads
32
Citations as of Apr 28, 2024
SCOPUSTM
Citations
5
Citations as of Apr 26, 2024
WEB OF SCIENCETM
Citations
5
Citations as of May 2, 2024
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.