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:4/6/2017)... Forecasts by Product Type (EAC), Biometrics, Card-Based ... & Logistics, Government & Public Sector, Utilities / Energy ... Nuclear Power), Industrial, Retail, Business Organisation (BFSI), Hospitality & ... for a definitive report on the $27.9bn Access Control ... ...
(Date:4/3/2017)... 3, 2017  Data captured by IsoCode, ... detected a statistically significant association between the ... treatment and objective response of cancer patients ... predict whether cancer patients will respond to ... well as to improve both pre-infusion potency testing ...
(Date:3/28/2017)... The report "Video Surveillance Market ... Storage Devices), Software (Video Analytics, VMS), and Service (VSaaS, ... to 2022", published by MarketsandMarkets, the market was valued ... to reach USD 75.64 Billion by 2022, at a ... year considered for the study is 2016 and the ...
Breaking Biology News(10 mins):
(Date:4/21/2017)... ... April 21, 2017 , ... Having worked on the ... Formaspace is pleased to introduce it to top lab design architects from around the ... Turk and VP of Industrial Design and Engineering Greg Casey will be at the ...
(Date:4/21/2017)... ... April 21, 2017 , ... Frederick Innovative Technology ... of emerging technology-based businesses, recently earned a $77,518 grant from the Rural Maryland ... in 2004, FITCI is Frederick’s first incubator. A non-profit corporation, FITCI is a ...
(Date:4/20/2017)... ... April 20, 2017 , ... Husson University will be celebrating ... body of knowledge during its Eighth Annual Research and Scholarship Day ... Atrium. During the event, undergraduates, graduate students, and faculty members from all of ...
(Date:4/20/2017)... Bethesda, MD (PRWEB) , ... April 20, 2017 ... ... announce the formation of a unique intellectual property (IP) sharing and commercialization model. ... their most promising inventions. A main component of this effort is bringing the ...
Breaking Biology Technology: