Navigation Links
Mathematical butterflies provide insight into how insects fly
Date:3/25/2013

In Robert A. Heinlein's science-fiction novel, The Cat Who Walks Through Walls, one of the characters states that butterflies are just "self-propelled flowers." While Heinlein's description of the insect's aerodynamic ability is quite poetic, it does little to scientifically explain it. Four Japanese researchers have done a bit better by developing sophisticated numerical simulations of a butterfly's forward flight. In a paper in the American Institute of Physics' journal Physics of Fluids, the researchers describe how they mathematically modeled a butterfly as a four-link rigid-body system consisting of a thorax (the segment of the insect to which the wings are attached), an abdomen, and the two wings.

Using data from observations of butterfly flight in wind tunnels, the researchers conducted three different types of simulations with their model that were defined by the position and attitude of the thorax: tethered (where the thorax is fixed), prescribed (where the thorax is programmed to move in an expected manner) and free-flight (where the thorax movement is unrestricted). They found that their mathematical butterfly did as predicted make use of the tiny, swirling vortices that form in the direction of travel during a downward flap, pushing air down and providing lift. However, they also observed that the flow around the butterfly is much more turbulent than expected. This turbulent flow triggers the complex trajectories characteristic to the flights of butterflies that may be one of the strategies by which the insects avoid predators.

Finally, the researchers determined that the pitching angle of the thorax is the key to controlled periodic flight, noting that living butterflies likely can continually sense the attitude of their thorax and adjust their flapping motion accordingly to ensure stability. The researchers state that their future work will focus on identifying the mechanism by which this control is achieved.


'/>"/>
Contact: Catherine Meyers
cmeyers@aip.org
301-209-3088
American Institute of Physics
Source:Eurekalert

Page: 1

Related biology news :

1. UC Riverside mathematicians recognized by American Mathematical Society
2. Persistence or extinction: Through a mathematical lens
3. UF study shows spiders, not birds, may drive evolution of some butterflies
4. Massachusetts butterflies move north as climate warms
5. Rewarding work for butterflies
6. Monarch butterflies down again this year as decline continues, says Texas A&M expert
7. Study reveals how monarch butterflies recolonize northern breeding range
8. Commonly used herbicides seen as threat to endangered butterflies
9. Human microbe study provides insight into health, disease
10. Pig brain models provide insights into human cognitive development
11. Strange phallus-shaped creature provides crucial missing link
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/5/2014)... biology in the UTSA College of Sciences, is ... to receive a two-year $300,00 National Science Foundation ... The funding supports President Obama,s BRAIN Initiative, a ... technology that will demystify complex brain processes. ... are broken into the interactions of multiple components, ...
(Date:11/4/2014)... of Utah engineers developed the first room-temperature fuel cell ... without needing to ignite the fuel. These new fuel ... power and sensors. , A study of the new ... journal ACS Catalysis . , Fuel cells convert ... fuel and an oxygen-rich source such as air. If ...
(Date:11/4/2014)... — Think about the way our bodies are assembled ... know that they are supposed to become a nerve ... find the correct place and alignment? Researchers at the ... , In a new study, UM researchers describe the ... surrounding neighbors, at the head-trunk region. Their discovery may ...
Breaking Biology News(10 mins):UTSA biology professor awarded $300,000 NSF grant for brain research 2UTSA biology professor awarded $300,000 NSF grant for brain research 3Jet-fueled electricity at room temperature 2The inside story: How the brain and skull stay together 2
... And if one wants to make something work using ... behavior of cells is a good place to start ... a very tiny packet. As Erik Winfree, professor of ... "I tend to think of cells as really small ...
... Rett Syndrome Foundation (IRSF) announces today ten (10) new ... Translational Research Program; and additional funding for current human ... 2013 covers the spectrum of Rett syndrome research, from ... way to treating the girls diagnosed with Rett syndrome. ...
... more than a trillion cells called neurons that form a ... contains millions of proteins that perform different functions. Exactly how ... brain still remains as a mystery that is just beginning ... of scientists has been able to observe intact interactions between ...
Cached Biology News:Building artificial cells will be a noisy business 2Building artificial cells will be a noisy business 3IRSF announces 2013 awards and implements new Translational Program 2IRSF announces 2013 awards and implements new Translational Program 3Watching how the brain works 2
(Date:11/26/2014)... PHILADELPHIA , Nov. 26, 2014 /PRNewswire-USNewswire/ ... unforgiving environments. Human exploration of space requires astronauts to ... mission safety and success, and prevent potential errors and ... success, little is known about how cognition is affected ... primarily affected. Now, Penn Medicine researchers are ...
(Date:11/26/2014)... On January, 14, 2015, UMBC’s Biotechnology ... science community to the UMBC campus for a discussion ... Protein Society, will take place from 9 a.m. to ... Through discussion, presentations and workshops, the free symposium will ... role in the industry and the future of protein ...
(Date:11/26/2014)... PMG Research, Inc. announced today the formation ... of sites that provide clinical research services to pharmaceutical companies ... through its partnerships with large physician practices and integrated health ... in the Southeastern United States and spans over 60 physician ... will be held by: Dr. Robert Holmes, MD, of ...
(Date:11/26/2014)... NC (PRWEB) November 25, 2014 ... Intensity Focused Ultrasound (HIFU) devices, recently participated in ... Small Renal Mass 360° .” Key opinion leaders ... therapeutic advances related to small renal masses while ... about different ablative technologies in hands-on labs. Attendees ...
Breaking Biology Technology:Penn Medicine Team Develops Cognitive Test Battery to Assess the Impact of Long Duration Spaceflights on Astronauts' Brain Function 2Penn Medicine Team Develops Cognitive Test Battery to Assess the Impact of Long Duration Spaceflights on Astronauts' Brain Function 3Penn Medicine Team Develops Cognitive Test Battery to Assess the Impact of Long Duration Spaceflights on Astronauts' Brain Function 4PMG Research Names Medical Advisory Board 2PMG Research Names Medical Advisory Board 3SonaCare Medical Supports American Urology Association’s Small Renal Mass 360° Summit 2SonaCare Medical Supports American Urology Association’s Small Renal Mass 360° Summit 3
... Nov. 15 China Aoxing Pharmaceutical,Company, Inc. (OTC ... and product pipeline for highly regulated narcotic,medicines and ... the first quarter of fiscal 2008 ended September ... revenues of $1,380,294 for,the first quarter of fiscal ...
... Final Close Completes $35 Million Financing, WOBURN, Mass., ... new generation biologics for the treatment and,prevention of cancer ... E financing, concurrent with the completion of a,venture debt ... BioVex intends to use the capital to complete its ...
... NASA Goddard Space Flight Center in Greenbelt, Md. ... nanotubes (CNT) has been named a winner in the ... Technology category. This award will be celebrated at the ... Tech Briefs National Nano Engineering Conference (NNEC 2007) in ...
Cached Biology Technology:China Aoxing Pharmaceutical Reports Financial Results for the First Quarter of Fiscal 2008 2China Aoxing Pharmaceutical Reports Financial Results for the First Quarter of Fiscal 2008 3China Aoxing Pharmaceutical Reports Financial Results for the First Quarter of Fiscal 2008 4China Aoxing Pharmaceutical Reports Financial Results for the First Quarter of Fiscal 2008 5BioVex Closes Second Round of Series E Financing 2NASA Goddard Space Flight Center's carbon nanotube manufacturing technology wins Nano 50 Award 2
Immunogen: Extract of pigmented melanoma metastases from lymph nodes. Storage: -20 C, Avoid Freeze/Thaw Cycles...
with GlutaMAXIL-glutamine...
alpha N-catenin (C-19)...
This STAT antibody sampler pack contains 8 monoclonal ,STAT antibodies....
Biology Products: