Hydrodynamic design of the humpback whale flipper
Abstract The humpback whale ( Megaptera novaeangliae ) is reported to use its elongate pectoral flippers during swimming maneuvers. The morphology of the flipper from a 9.02‐m whale was evaluated with regard to this hydrodynamic function. The flipper had a wing‐like, high aspect ratio plan‐form. Rou...
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crwiley:10.1002/jmor.1052250105 2024-06-23T07:53:35+00:00 Hydrodynamic design of the humpback whale flipper Fish, Franke E. Battle, Juliann M. 1995 http://dx.doi.org/10.1002/jmor.1052250105 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjmor.1052250105 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jmor.1052250105 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Morphology volume 225, issue 1, page 51-60 ISSN 0362-2525 1097-4687 journal-article 1995 crwiley https://doi.org/10.1002/jmor.1052250105 2024-06-13T04:25:21Z Abstract The humpback whale ( Megaptera novaeangliae ) is reported to use its elongate pectoral flippers during swimming maneuvers. The morphology of the flipper from a 9.02‐m whale was evaluated with regard to this hydrodynamic function. The flipper had a wing‐like, high aspect ratio plan‐form. Rounded tubercles were regularly interspersed along the flipper's leading edge. The flipper was cut into 71 2.5‐cm cross‐sections and photographed. Except for sections near the distal tip, flipper sections were symmetrical with no camber. Flipper sections had a blunt, rounded leading edge and a highly tapered trailing edge. Placement of the maximum thickness placement for each cross‐section varied from 49% of chord at the tip to 19% at mid‐span. Section thickness ratio averaged 0.23 with a range of 0.20–0.28. The humpback whale flipper had a cross‐sectional design typical of manufactured aerodynamic foils for lift generation. The morphology and placement of leading edge tubercles sugges that they function as enhanced lift devices to control flow over the flipper and maintain lift at high angles of attack. The morphology of the humpback whale flipper suggests that it is adapted for high maneuverability associated with the whale's unique feeding behavior. © 1995 Wiley‐Liss, Inc. Article in Journal/Newspaper Humpback Whale Megaptera novaeangliae Wiley Online Library Camber ENVELOPE(-63.300,-63.300,-64.680,-64.680) Journal of Morphology 225 1 51 60 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract The humpback whale ( Megaptera novaeangliae ) is reported to use its elongate pectoral flippers during swimming maneuvers. The morphology of the flipper from a 9.02‐m whale was evaluated with regard to this hydrodynamic function. The flipper had a wing‐like, high aspect ratio plan‐form. Rounded tubercles were regularly interspersed along the flipper's leading edge. The flipper was cut into 71 2.5‐cm cross‐sections and photographed. Except for sections near the distal tip, flipper sections were symmetrical with no camber. Flipper sections had a blunt, rounded leading edge and a highly tapered trailing edge. Placement of the maximum thickness placement for each cross‐section varied from 49% of chord at the tip to 19% at mid‐span. Section thickness ratio averaged 0.23 with a range of 0.20–0.28. The humpback whale flipper had a cross‐sectional design typical of manufactured aerodynamic foils for lift generation. The morphology and placement of leading edge tubercles sugges that they function as enhanced lift devices to control flow over the flipper and maintain lift at high angles of attack. The morphology of the humpback whale flipper suggests that it is adapted for high maneuverability associated with the whale's unique feeding behavior. © 1995 Wiley‐Liss, Inc. |
format |
Article in Journal/Newspaper |
author |
Fish, Franke E. Battle, Juliann M. |
spellingShingle |
Fish, Franke E. Battle, Juliann M. Hydrodynamic design of the humpback whale flipper |
author_facet |
Fish, Franke E. Battle, Juliann M. |
author_sort |
Fish, Franke E. |
title |
Hydrodynamic design of the humpback whale flipper |
title_short |
Hydrodynamic design of the humpback whale flipper |
title_full |
Hydrodynamic design of the humpback whale flipper |
title_fullStr |
Hydrodynamic design of the humpback whale flipper |
title_full_unstemmed |
Hydrodynamic design of the humpback whale flipper |
title_sort |
hydrodynamic design of the humpback whale flipper |
publisher |
Wiley |
publishDate |
1995 |
url |
http://dx.doi.org/10.1002/jmor.1052250105 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjmor.1052250105 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jmor.1052250105 |
long_lat |
ENVELOPE(-63.300,-63.300,-64.680,-64.680) |
geographic |
Camber |
geographic_facet |
Camber |
genre |
Humpback Whale Megaptera novaeangliae |
genre_facet |
Humpback Whale Megaptera novaeangliae |
op_source |
Journal of Morphology volume 225, issue 1, page 51-60 ISSN 0362-2525 1097-4687 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jmor.1052250105 |
container_title |
Journal of Morphology |
container_volume |
225 |
container_issue |
1 |
container_start_page |
51 |
op_container_end_page |
60 |
_version_ |
1802645309263708160 |