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Toward the two-way coupling of swimmer and surface gravity waves

Fang, Lei (2023) Toward the two-way coupling of swimmer and surface gravity waves. In: Pitt Momentum Fund 2023.

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Swimmers like protozoa and zooplankton are ubiquitous in lakes and oceans and the swimmers are in the surface gravity waves. There is a two-way coupling between swimmers and surface gravity waves. On the one hand, swimmers will be affected by the wave and form complex patterns (e.g., local accumulation), which can affect their forge and mate. Our previous study has shown that the shape and intrinsic swimming speed can affect swimmers' spatial distribution in flow. On the other hand, swimmers' peddling can generate local perturbations that have an unpredictable effect on the wave. In water waves, vorticity is zero, and Reynolds stress has the same effect as isotropic stress. The additional vorticity introduced by the swimmers will, by definition, generate a non-zero deviatoric part of Reynolds stress which produces fluctuation velocity from the mean flow. This mechanism could lead to strong biologically generated mixing. This preliminary study will help the PI to submit a proposal to the National Science Foundation Physical Oceanography program.


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Item Type: Conference or Workshop Item (Other)
CreatorsEmailPitt UsernameORCID
Fang, LeiLEF68@pitt.edu0000-0001-6978-602X
Centers: Other Centers, Institutes, Offices, or Units > Office of Sponsored Research > Pitt Momentum Fund
Date: 2023
Event Title: Pitt Momentum Fund 2023
Event Type: Other
DOI or Unique Handle: 10.18117/e13k-ag23
Schools and Programs: Swanson School of Engineering > Civil and Environmental Engineering
Refereed: No
Uncontrolled Keywords: Priming Grants - Engineering, Technology, Natural Sciences, and Mathematical Sciences
Other ID: 6288
Additional Information: Poster to be added by March 1, 2023.
Date Deposited: 15 Feb 2023 22:44
Last Modified: 22 Sep 2023 17:35


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