Navigation Links
Whale-inspired ocean turbine blades
Date:11/27/2010

WASHINGTON, D.C., November 22, 2010 -- Interest in developing alternative energy sources is driving the consideration of a promising technology that uses underwater turbines to convert ocean tidal flow energy into electricity.

Now lessons learned from the ocean's largest mammals has inspired United States Naval Academy researchers to tackle one of the serious challenges of this technology: the low velocity associated with many tidal flows and the difficulty of extracting useful energy from low speed flows using current designs. They will present their findings today at the American Physical Society's Division of Fluid Dynamics (DFD) meeting in Long Beach, CA.

"We designed a novel blade modification for potential turbine performance improvement, which was inspired by humpback whale flippers, with the addition of tubercles, or bumps, to the leading edge of each blade," explains Mark Murray, a Naval Academy engineering professor. Previous research demonstrated the addition of biomimetically derived protuberances (technology that mimics nature) improved stall characteristics and aerodynamic performance."

The researchers' modified blades proved to be more effective in extracting energy at low speeds. Importantly, the blades did not degrade performance at high flow speeds or increase the mechanical complexity of the turbine.

Applications of this research may include the development of turbine designs that are more effective in converting low velocity tidal flow energy into useful electricity and more economically feasible to deploy.


'/>"/>

Contact: Jason Socrates Bardi
jbardi@aip.org
301-209-3091
American Institute of Physics
Source:Eurekalert

Page: 1

Related biology news :

1. Busy microbial world discovered in deepest ocean crust ever explored
2. Listening for ocean spills and their ecological effects
3. LSU oceanography researcher discovers toxic algae in open water
4. Sharks and wolves: Predator, prey interactions similar on land and in oceans
5. New ocean acidification study shows added danger to already struggling coral reefs
6. Iron stimulates blooms of toxin-producing algae in open ocean, study finds
7. King crab distributions limited by temperature in the Southern Ocean
8. Speed installation of system to monitor vital signs of global ocean, scientists urge
9. Worlds largest, most complex marine virus is major player in ocean ecosystems: UBC research
10. Team completes world-first ocean observatory
11. NSF awards grants to study effects of ocean acidification
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/30/2017)... -- On April 6-7, 2017, Sequencing.com will host the world,s ... at Microsoft,s headquarters in Redmond, Washington ... health and wellness apps that provide a unique, personalized ... is the first hackathon for personal genomics and the ... the genomics, tech and health industries are sending teams ...
(Date:3/29/2017)... 2017  higi, the health IT company that operates ... America , today announced a Series B investment ... EveryMove. The new investment and acquisition accelerates higi,s strategy ... transform population health activities through the collection and workflow ... higi collects and secures data today on behalf of ...
(Date:3/24/2017)... Controller General of Immigration from Maldives Mr. Mohamed Anwar and ... international IAIR Award for the most innovative high security ePassport and eGates  ... ... Maldives Immigration Controller General, Mr. Mohamed Anwar ... right) have received the IAIR award for the "Most innovative high security ...
Breaking Biology News(10 mins):
(Date:7/26/2017)... (PRWEB) , ... July 26, 2017 , ... ... company has acquired the worldwide rights to SQuEEZ heart function analysis software, and ... The U.S. Patent application was filed April 10, 2014 and uses high resolution ...
(Date:7/26/2017)... ... July 25, 2017 , ... ... and software solutions that enable short-run digital printing, is proud to announce that ... its free GHS Wizard online software available at avery.com/GHS . The products ...
(Date:7/26/2017)... (PRWEB) , ... July 26, 2017 , ... ... variety of complex problems we face every day. This unique capability combines ... agronomists, geologists, chemists, and manufacturers to deliver unprecedented datasets for chemical analysis, quality ...
(Date:7/25/2017)... , ... July 25, 2017 , ... Fiberstar, Inc ... and beverage industry, offers Citri-Fi® 125. This natural citrus fiber is used to improve ... extend real tomato in sauces, condiments and spreads. Today, more than ever, consumers connect ...
Breaking Biology Technology: