Navigation Links
Stingray movement could inspire the next generation of submarines
Date:11/13/2013

BUFFALO, N.Y. ─ Stingrays swim through water with such ease that researchers from the University at Buffalo and Harvard University are studying how their movements could be used to design more agile and fuel-efficient unmanned underwater vehicles.

The vehicles could allow researchers to more efficiently study the mostly unexplored ocean depths, and they could also serve during clean up or rescue efforts.

"Most fish wag their tails to swim. A stingray's swimming is much more unique, like a flag in the wind," says Richard Bottom, a UB mechanical engineering graduate student participating in the research.

Bottom and Iman Borazjani, UB assistant professor of mechanical and aerospace engineering, set out to investigate the form-function relationship of the stingray why it looks the way it does and what it gets from moving the way it does.

They will explain their findings at the 66th Annual Meeting of the American Physical Society Division of Fluid Dynamics. Their lecture, "Biofluids: Locomotion III Flying," is at 4:45 p.m. on Sunday, Nov. 24, in Pittsburgh, Pa.

Downloadable images from their research are available here: http://www.buffalo.edu/news/releases/2013/11/013.html.

The researchers used computational fluid dynamics, which employs algorithms to solve problems that involve fluid flows, to map the flow of water and the vortices around live stingrays.

The study is believed to be the first time the leading-edge vortex, the vortex at the front of an object in motion, has been studied in underwater locomotion, says Borazjani. The leading-edge vortex has been observed in the flight of birds and insects, and is one of the most important thrust enhancement mechanics in insect flight.

The vortices on the waves of the stingrays' bodies cause favorable pressure fields low pressure on the front and high pressure on the back which push the ray forward. Because movement through air and water are similar, understanding vortices are critical.

"By looking at nature, we can learn from it and come up with new designs for cars, planes and submarines," says Borazjani. "But we're not just mimicking nature. We want to understand the underlying physics for future use in engineering or central designs."

Studies have already proven that stingray motion closely resembles the most optimal swimming gait, says Bottom. Much of this is due to the stingray's unique flat and round shape, which allows them to easily glide through water.

Borazjani and Bottom plan to continue their research and study the differences in movement among several types of rays.


'/>"/>

Contact: Marcene Robinson
marcener@buffalo.edu
716-645-4595
University at Buffalo
Source:Eurekalert

Related biology news :

1. Tourist-fed stingrays change their ways
2. Finding psychiatric drugs in the movements of mice
3. Multi-disciplinary Penn research identifies protein required for cell movement
4. Chase and run cell movement mechanism explains process of metastasis
5. Interferon-beta aids balance and movement in mice with spinocerebellar ataxia 7
6. Scientists join forces to bring plant movement to light
7. Outside a vacuum: Model predicts movement of charged particles in complex media
8. 3dMD Transitions Anatomical Research from 3D-Static to 4D-Movement Surface Imaging
9. Research identifies mechanism responsible for eye movement disorder
10. Robot vision: Muscle-like action allows camera to mimic human eye movement
11. How bacteria change movement direction in response to oxygen: Molecular interactions unravelled
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/9/2016)... -- Vigilant Solutions announces today that an agency used its ... lead in a difficult homicide case. The agency then used ... suspect vehicle. Due to the ongoing investigation, the agency name ... the agency,s request. --> --> ... found deceased at an intersection here in the City. He ...
(Date:2/3/2016)... --> --> ... Fingerprint Identification System Market by Component (Hardware and Software), ... Finance, Government, Healthcare, and Transportation) and Geography - Global ... expected to be worth USD 8.49 Billion by 2020 ... 2020. The transformation and technology evolution from the manual ...
(Date:2/2/2016)... 2016 Checkpoint Inhibitors for Cancer – ... Are you interested in the future of cancer ... inhibitors. Visiongain,s report gives those predictions to 2026 ... level. Avoid falling behind in data or ... revenues those emerging cancer therapies can achieve. There ...
Breaking Biology News(10 mins):
(Date:2/9/2016)... ... February 09, 2016 , ... Clinovo , the ... validated Electronic Data Capture (EDC) system ClinCaptureand its new Contract Research Organization (CRO) ... 2016 Conference in San Mateo, California on February 10th and 11th. Watch ...
(Date:2/9/2016)... Lawrenceville, NJ (PRWEB) , ... February 09, 2016 ... ... Diane Dorman, former Vice President for Public Policy for the National Organization for ... and patient advocacy groups to ensure their voices are heard throughout the drug ...
(Date:2/9/2016)... February 9, 2016 Three-Year Initiative Supports ... to Take Part in Life-Changing Camp ... designed to positively affect the lives of children born with rare ... --> SHPG ) is announcing a new initiative designed to ... well as the future of rare disease care. --> ...
(Date:2/8/2016)... PLYMOUTH MEETING, Pa. , Feb. 8, 2016 /PRNewswire-USNewswire/ ... place of standard bone cement products to prevent infection ... a question that the experts at ECRI Institute have ... Cement: Fighting Infection or Fighting Your Bottom Line?" ... or Fighting Your Bottom Line?" --> ...
Breaking Biology Technology: