Bulletin of the American Physical Society
76th Annual Meeting of the Division of Fluid Dynamics
Sunday–Tuesday, November 19–21, 2023; Washington, DC
Session X06: Biofluids: General Locomotion II
8:00 AM–10:36 AM,
Tuesday, November 21, 2023
Room: 102B
Chair: Xuanhong An, San Jose State University
Abstract: X06.00011 : A hydrodynamic toy model for fish locomotion*
10:10 AM–10:23 AM
Presenter:
Bruno Ventéjou
(LIPHY, Université Grenoble-Alpes)
Authors:
Bruno Ventéjou
(LIPHY, Université Grenoble-Alpes)
Thibaut Métivet
(ELAN, INRIA)
Aurélie Dupont
(LIPHY, Université Grenoble-Alpes)
Chrisitian Graff
(LPNC, Université Grenoble-Alpes)
Philippe Peyla
(LIPHY, Université Grenoble-Alpes)
We propose a toy model, that is able to generate the vortex wake induced by the fish locomotion and which is light compare to solving the fish tail flapping. We describe the fish as a rigid body by a penalty method and achieve the description of the tail flapping by exerting a torque in the fluid compensated in the body. The trajectory of the fish is determined by the position of the tail in relation to the body. We perform a full characterization of the toy model and compare it to the scaling found in the animal kingdom [6].
[2]D. S. Calovi, et al., NJP, 16(1) (2014).
[3]A. Filella, et al., Phys. Rev. lett. (2018).
[4]M. Bergmann, et al., Bioinspiration & biomimetics (2014).
[5]G. Novati, et al., Bioinspiration & biomimetics, (2017).
[6]M. Gazzola, et al., Nat. Phys. (2014).
*This research was funded by the Agence Nationale de la Recherche (ANR PRC CES 45 FISHSIF).
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