Navigation Links
Whales and dolphins influence new wind turbine design
Date:7/7/2008

Sea creatures have evolved over millions of years to maximise efficiency of movement through water; humans have been trying to perfect streamlined designs for barely a century. So shouldn't we be taking more notice of the experts? Biologists and engineers from across the US have been doing just that. By studying the flippers, fins and tails of whales and dolphins, these scientists have discovered some features of their structure that contradict long-held engineering theories. Dr Frank Fish (West Chester University) will talk about the exciting impact that these discoveries may have on traditional industrial designs on Tuesday 8th July at the Society for Experimental Biology's Annual Meeting in Marseille [Session A2].

Some of his observations are already being applied to real life engineering problems, a concept known as biomimetics. The shape of whale flippers with one bumpy edge has inspired the creation of a completely novel design for wind turbine blades. This design has been shown to be more efficient and also quieter, but defies traditional engineering theories. "Engineers have previously tried to ensure steady flow patterns on rigid and simple lifting surfaces, such as wings. The lesson from biomimicry is that unsteady flow and complex shapes can increase lift, reduce drag and delay 'stall', a dramatic and abrupt loss of lift, beyond what existing engineered systems can accomplish," Dr Fish advises. "There are even possibilities that this technology could be applied to aeronautical designs such as helicopter blades in the future."

The work centres on studies of vortices, tornado-shaped water formations that develop in the wake of the animals. "In the case of the humpback whale, vortices formed from tubercles (bumps) on the front edge of flippers help to generate more lift without the occurrence of stall, as well as enhancing manoeuvrability and agility," explains Dr Fish. "In the case of the tails of dolphins, vortices are formed at the end of the up and down strokes. These vortices are involved in the production of a jet in the wake of the dolphin that produces high thrust. By regulating the production of the vortices, the dolphin can maximize its efficiency while swimming."


'/>"/>

Contact: Holly Astley
hma25@cam.ac.uk
44-779-285-5259
Society for Experimental Biology
Source:Eurekalert  

Related biology news :

1. Killer whales, blind bats, discriminating dolphins, mating birds
2. Warning buoys for right whales installed along Massachusetts Bay
3. Northern right whales head south to give birth, leave genetic fingerprints with NOAA researchers
4. Gray whales a fraction of historic levels, genetic research says
5. Migrating squid drove evolution of sonar in whales and dolphins, researchers argue
6. Mercury contamination found in stranded Victorian dolphins
7. Minds eye influences visual perception
8. Human influences challenge penguin populations
9. Caloric intake negatively influences healthy adults sleep patterns
10. Fat intake negatively influences the sleep pattern in healthy adults
11. Satellites illuminate pollutions influence on clouds
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Whales and dolphins influence new wind turbine design
(Date:2/8/2017)... , Feb. 7, 2017 Report Highlights ... by 2021 from $8.3 billion in 2016 at a ... to 2021. Report Includes - An overview of ... market trends, with data from 2015 and 2016, and ... - Segmentation of the market on the basis of ...
(Date:2/7/2017)... February 7, 2017 Ipsidy Inc. ... Corporation [OTC: IDGS], ("Ipsidy" or the "Company") a provider ... processing services, is pleased to announce the following changes ... Effective January 31, 2017, Philip D. Beck ... CEO and President.  An experienced payment industry professional and ...
(Date:2/3/2017)... , Feb. 3, 2017 A new independent ... Strategy Partners, LLP (IdSP) . Designed to fill a ... complex identity market, founding partners Mark Crego ... combined years just in identity expertise that span federal ... non-profit leadership. The Crego-Kephart combined expertise has a common ...
Breaking Biology News(10 mins):
(Date:3/1/2017)...  Elizabeth Young and Joshua Rosenthal , PhD, ... University,s Health Workforce Speaker series. http://bit.ly/2lA6C8B ... be speaking on March 9, 2017 at the Milken ... DC at 12:00pm. The George ... speakers to examine new workforce configurations, their outcomes and ...
(Date:2/28/2017)... ... February 28, 2017 , ... Surface Plasmon Resonance (SPR) is ... optical phenomenon that is sensitive to changes in the dielectric properties of the medium ... changes in refractive index occurring up to 300 nm above the metal surface (Au) ...
(Date:2/28/2017)... ... February 28, 2017 , ... ... MIDI, Inc. (Newark, DE) have formed a strategic partnership to develop and ... and renewable energy laboratories. These automated testing solutions will save analysis time ...
(Date:2/28/2017)... NEW YORK , Feb. 28, 2017 /PRNewswire/ ... company, announced today the formation of the Phosphorus ... and science experts chosen to advise the company ... company,s large-scale, multi-site research initiatives. Please visit ... team and initiatives. "We,ve gathered some ...
Breaking Biology Technology: