Optimal specific wavelength for maximum thrust production in undulatory propulsion.
What wavelengths do undulatory swimmers use during propulsion? In this work we find that a wide range of body/caudal fin (BCF) swimmers, from larval zebrafish and herring to fully-grown eels, use specific wavelength (ratio of wavelength to tail amplitude of undulation) values that fall within a rela...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2017-01-01
|
| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC5487070?pdf=render |
| _version_ | 1818279973607178240 |
|---|---|
| author | Nishant Nangia Rahul Bale Nelson Chen Yohanna Hanna Neelesh A Patankar |
| author_facet | Nishant Nangia Rahul Bale Nelson Chen Yohanna Hanna Neelesh A Patankar |
| author_sort | Nishant Nangia |
| collection | DOAJ |
| description | What wavelengths do undulatory swimmers use during propulsion? In this work we find that a wide range of body/caudal fin (BCF) swimmers, from larval zebrafish and herring to fully-grown eels, use specific wavelength (ratio of wavelength to tail amplitude of undulation) values that fall within a relatively narrow range. The possible emergence of this constraint is interrogated using numerical simulations of fluid-structure interaction. Based on these, it was found that there is an optimal specific wavelength (OSW) that maximizes the swimming speed and thrust generated by an undulatory swimmer. The observed values of specific wavelength for BCF animals are relatively close to this OSW. The mechanisms underlying the maximum propulsive thrust for BCF swimmers are quantified and are found to be consistent with the mechanisms hypothesized in prior work. The adherence to an optimal value of specific wavelength in most natural hydrodynamic propulsors gives rise to empirical design criteria for man-made propulsors. |
| first_indexed | 2024-12-12T23:41:50Z |
| format | Article |
| id | doaj.art-5ae2a40b48f949e7a499751bcc9567ac |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-12T23:41:50Z |
| publishDate | 2017-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-5ae2a40b48f949e7a499751bcc9567ac2022-12-22T00:07:06ZengPublic Library of Science (PLoS)PLoS ONE1932-62032017-01-01126e017972710.1371/journal.pone.0179727Optimal specific wavelength for maximum thrust production in undulatory propulsion.Nishant NangiaRahul BaleNelson ChenYohanna HannaNeelesh A PatankarWhat wavelengths do undulatory swimmers use during propulsion? In this work we find that a wide range of body/caudal fin (BCF) swimmers, from larval zebrafish and herring to fully-grown eels, use specific wavelength (ratio of wavelength to tail amplitude of undulation) values that fall within a relatively narrow range. The possible emergence of this constraint is interrogated using numerical simulations of fluid-structure interaction. Based on these, it was found that there is an optimal specific wavelength (OSW) that maximizes the swimming speed and thrust generated by an undulatory swimmer. The observed values of specific wavelength for BCF animals are relatively close to this OSW. The mechanisms underlying the maximum propulsive thrust for BCF swimmers are quantified and are found to be consistent with the mechanisms hypothesized in prior work. The adherence to an optimal value of specific wavelength in most natural hydrodynamic propulsors gives rise to empirical design criteria for man-made propulsors.http://europepmc.org/articles/PMC5487070?pdf=render |
| spellingShingle | Nishant Nangia Rahul Bale Nelson Chen Yohanna Hanna Neelesh A Patankar Optimal specific wavelength for maximum thrust production in undulatory propulsion. PLoS ONE |
| title | Optimal specific wavelength for maximum thrust production in undulatory propulsion. |
| title_full | Optimal specific wavelength for maximum thrust production in undulatory propulsion. |
| title_fullStr | Optimal specific wavelength for maximum thrust production in undulatory propulsion. |
| title_full_unstemmed | Optimal specific wavelength for maximum thrust production in undulatory propulsion. |
| title_short | Optimal specific wavelength for maximum thrust production in undulatory propulsion. |
| title_sort | optimal specific wavelength for maximum thrust production in undulatory propulsion |
| url | http://europepmc.org/articles/PMC5487070?pdf=render |
| work_keys_str_mv | AT nishantnangia optimalspecificwavelengthformaximumthrustproductioninundulatorypropulsion AT rahulbale optimalspecificwavelengthformaximumthrustproductioninundulatorypropulsion AT nelsonchen optimalspecificwavelengthformaximumthrustproductioninundulatorypropulsion AT yohannahanna optimalspecificwavelengthformaximumthrustproductioninundulatorypropulsion AT neeleshapatankar optimalspecificwavelengthformaximumthrustproductioninundulatorypropulsion |