Quantitative wake analysis of a freely swimming fish using 3D synthetic aperture PIV
Synthetic aperture PIV (SAPIV) is used to quantitatively analyze the wake behind a giant danio (Danio aequipinnatus) swimming freely in a seeded quiescent tank. The experiment is designed with minimal constraints on animal behavior to ensure that natural swimming occurs. The fish exhibits forward sw...
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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Springer Berlin Heidelberg
2016
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| Online Access: | http://hdl.handle.net/1721.1/103327 https://orcid.org/0000-0003-3223-7400 https://orcid.org/0000-0003-1672-4292 |
| _version_ | 1811089032365473792 |
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| author | Mendelson, Leah Rose Techet, Alexandra H. |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Mendelson, Leah Rose Techet, Alexandra H. |
| author_sort | Mendelson, Leah Rose |
| collection | MIT |
| description | Synthetic aperture PIV (SAPIV) is used to quantitatively analyze the wake behind a giant danio (Danio aequipinnatus) swimming freely in a seeded quiescent tank. The experiment is designed with minimal constraints on animal behavior to ensure that natural swimming occurs. The fish exhibits forward swimming and turning behaviors at speeds between 0.9 and 1.5 body lengths/second. Results show clearly isolated and linked vortex rings in the wake structure, as well as the thrust jet coming off of a visual hull reconstruction of the fish body. As a benchmark for quantitative analysis of volumetric PIV data, the vortex circulation and impulse are computed using methods consistent with those applied to planar PIV data. Volumetric momentum analysis frameworks are discussed for linked and asymmetric vortex structures, laying a foundation for further volumetric studies of swimming hydrodynamics with SAPIV. Additionally, a novel weighted refocusing method is presented as an improvement to SAPIV reconstruction. |
| first_indexed | 2024-09-23T14:12:46Z |
| format | Article |
| id | mit-1721.1/103327 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T14:12:46Z |
| publishDate | 2016 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1033272022-09-28T19:15:50Z Quantitative wake analysis of a freely swimming fish using 3D synthetic aperture PIV Mendelson, Leah Rose Techet, Alexandra H. Massachusetts Institute of Technology. Department of Mechanical Engineering Mendelson, Leah Rose Techet, Alexandra H. Synthetic aperture PIV (SAPIV) is used to quantitatively analyze the wake behind a giant danio (Danio aequipinnatus) swimming freely in a seeded quiescent tank. The experiment is designed with minimal constraints on animal behavior to ensure that natural swimming occurs. The fish exhibits forward swimming and turning behaviors at speeds between 0.9 and 1.5 body lengths/second. Results show clearly isolated and linked vortex rings in the wake structure, as well as the thrust jet coming off of a visual hull reconstruction of the fish body. As a benchmark for quantitative analysis of volumetric PIV data, the vortex circulation and impulse are computed using methods consistent with those applied to planar PIV data. Volumetric momentum analysis frameworks are discussed for linked and asymmetric vortex structures, laying a foundation for further volumetric studies of swimming hydrodynamics with SAPIV. Additionally, a novel weighted refocusing method is presented as an improvement to SAPIV reconstruction. 2016-06-24T17:24:51Z 2016-06-24T17:24:51Z 2015-06 2015-05 2016-05-23T12:09:59Z Article http://purl.org/eprint/type/JournalArticle 0723-4864 1432-1114 http://hdl.handle.net/1721.1/103327 "Quantitative wake analysis of a freely swimming fish using 3D synthetic aperture PIV." Experiments in Fluids (July 2015) 56:135, pp.1-19. https://orcid.org/0000-0003-3223-7400 https://orcid.org/0000-0003-1672-4292 en http://dx.doi.org/10.1007/s00348-015-2003-x Experiments in Fluids Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ Springer-Verlag Berlin Heidelberg application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
| spellingShingle | Mendelson, Leah Rose Techet, Alexandra H. Quantitative wake analysis of a freely swimming fish using 3D synthetic aperture PIV |
| title | Quantitative wake analysis of a freely swimming fish using 3D synthetic aperture PIV |
| title_full | Quantitative wake analysis of a freely swimming fish using 3D synthetic aperture PIV |
| title_fullStr | Quantitative wake analysis of a freely swimming fish using 3D synthetic aperture PIV |
| title_full_unstemmed | Quantitative wake analysis of a freely swimming fish using 3D synthetic aperture PIV |
| title_short | Quantitative wake analysis of a freely swimming fish using 3D synthetic aperture PIV |
| title_sort | quantitative wake analysis of a freely swimming fish using 3d synthetic aperture piv |
| url | http://hdl.handle.net/1721.1/103327 https://orcid.org/0000-0003-3223-7400 https://orcid.org/0000-0003-1672-4292 |
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