Hydrodynamic flow control in marine mammals
The ability to control the flow of water around the body dictates the performance of marine mammals in the aquatic environment. Morphological specializations of marine mammals afford mechanisms for passive flow control. Aside from the design of the body, which minimizes drag, the morphology of the a...
Published in: | Integrative and Comparative Biology |
---|---|
Main Authors: | , , |
Format: | Text |
Language: | English |
Published: |
Oxford University Press
2008
|
Subjects: | |
Online Access: | http://icb.oxfordjournals.org/cgi/content/short/48/6/788 https://doi.org/10.1093/icb/icn029 |
id |
fthighwire:oai:open-archive.highwire.org:icbiol:48/6/788 |
---|---|
record_format |
openpolar |
spelling |
fthighwire:oai:open-archive.highwire.org:icbiol:48/6/788 2023-05-15T17:10:50+02:00 Hydrodynamic flow control in marine mammals Fish, Frank E. Howle, Laurens E. Murray, Mark M. 2008-12-01 00:00:00.0 text/html http://icb.oxfordjournals.org/cgi/content/short/48/6/788 https://doi.org/10.1093/icb/icn029 en eng Oxford University Press http://icb.oxfordjournals.org/cgi/content/short/48/6/788 http://dx.doi.org/10.1093/icb/icn029 Copyright (C) 2008, The Society for Integrative and Comparative Biology Going with the Flow: Ecomorphological Variation across Aquatic Flow Regimes TEXT 2008 fthighwire https://doi.org/10.1093/icb/icn029 2008-12-25T20:10:07Z The ability to control the flow of water around the body dictates the performance of marine mammals in the aquatic environment. Morphological specializations of marine mammals afford mechanisms for passive flow control. Aside from the design of the body, which minimizes drag, the morphology of the appendages provides hydrodynamic advantages with respect to drag, lift, thrust, and stall. The flukes of cetaceans and sirenians and flippers of pinnipeds possess geometries with flexibility, which enhance thrust production for high efficiency swimming. The pectoral flippers provide hydrodynamic lift for maneuvering. The design of the flippers is constrained by performance associated with stall. Delay of stall can be accomplished passively by modification of the flipper leading edge. Such a design is exhibited by the leading edge tubercles on the flippers of humpback whales ( Megaptera novaeangliae ). These novel morphological structures induce a spanwise flow field of separated vortices alternating with regions of accelerated flow. The coupled flow regions maintain areas of attached flow and delay stall to high angles of attack. The delay of stall permits enhanced turning performance with respect to both agility and maneuverability. The morphological features of marine mammals for flow control can be utilized in the biomimetic design of engineered structures for increased power production and increased efficiency. Text Megaptera novaeangliae HighWire Press (Stanford University) Integrative and Comparative Biology 48 6 788 800 |
institution |
Open Polar |
collection |
HighWire Press (Stanford University) |
op_collection_id |
fthighwire |
language |
English |
topic |
Going with the Flow: Ecomorphological Variation across Aquatic Flow Regimes |
spellingShingle |
Going with the Flow: Ecomorphological Variation across Aquatic Flow Regimes Fish, Frank E. Howle, Laurens E. Murray, Mark M. Hydrodynamic flow control in marine mammals |
topic_facet |
Going with the Flow: Ecomorphological Variation across Aquatic Flow Regimes |
description |
The ability to control the flow of water around the body dictates the performance of marine mammals in the aquatic environment. Morphological specializations of marine mammals afford mechanisms for passive flow control. Aside from the design of the body, which minimizes drag, the morphology of the appendages provides hydrodynamic advantages with respect to drag, lift, thrust, and stall. The flukes of cetaceans and sirenians and flippers of pinnipeds possess geometries with flexibility, which enhance thrust production for high efficiency swimming. The pectoral flippers provide hydrodynamic lift for maneuvering. The design of the flippers is constrained by performance associated with stall. Delay of stall can be accomplished passively by modification of the flipper leading edge. Such a design is exhibited by the leading edge tubercles on the flippers of humpback whales ( Megaptera novaeangliae ). These novel morphological structures induce a spanwise flow field of separated vortices alternating with regions of accelerated flow. The coupled flow regions maintain areas of attached flow and delay stall to high angles of attack. The delay of stall permits enhanced turning performance with respect to both agility and maneuverability. The morphological features of marine mammals for flow control can be utilized in the biomimetic design of engineered structures for increased power production and increased efficiency. |
format |
Text |
author |
Fish, Frank E. Howle, Laurens E. Murray, Mark M. |
author_facet |
Fish, Frank E. Howle, Laurens E. Murray, Mark M. |
author_sort |
Fish, Frank E. |
title |
Hydrodynamic flow control in marine mammals |
title_short |
Hydrodynamic flow control in marine mammals |
title_full |
Hydrodynamic flow control in marine mammals |
title_fullStr |
Hydrodynamic flow control in marine mammals |
title_full_unstemmed |
Hydrodynamic flow control in marine mammals |
title_sort |
hydrodynamic flow control in marine mammals |
publisher |
Oxford University Press |
publishDate |
2008 |
url |
http://icb.oxfordjournals.org/cgi/content/short/48/6/788 https://doi.org/10.1093/icb/icn029 |
genre |
Megaptera novaeangliae |
genre_facet |
Megaptera novaeangliae |
op_relation |
http://icb.oxfordjournals.org/cgi/content/short/48/6/788 http://dx.doi.org/10.1093/icb/icn029 |
op_rights |
Copyright (C) 2008, The Society for Integrative and Comparative Biology |
op_doi |
https://doi.org/10.1093/icb/icn029 |
container_title |
Integrative and Comparative Biology |
container_volume |
48 |
container_issue |
6 |
container_start_page |
788 |
op_container_end_page |
800 |
_version_ |
1766067501961052160 |