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:7/22/2014)... allergic to dust mites (and chances are you are), ... the University of Iowa have developed a vaccine that ... immune response. In animal tests, the nano-sized vaccine package ... to the allergens, according to the paper, published in ... Journal . One big reason why it works, ...
(Date:7/22/2014)... Health Policy and Economics have linked tighter Medicaid ... for schizophrenic individuals. , The study comes amid ... actually save money, when other costs are taken ... extra approval step before tests or treatments can ... prior authorization is intended to encourage physicians ...
(Date:7/22/2014)... be on the horizon. Bacteria that produce a ... insulin resistance and other adverse effects of a ... discovered., "Of course it,s hard to speculate from ... Ph.D., assistant professor of Pharmacology. "But essentially we,ve ... in mice, even though they,re eating a high-fat ...
Breaking Biology News(10 mins):Researchers create vaccine for dust-mite allergies 2Are state Medicaid policies sentencing people with mental illnesses to prison? 2Vanderbilt study shows therapeutic bacteria prevent obesity in mice 2
... lice treatments such as the pyrethroids cypermethrin and deltamethrin, ... increased from 2008 to 2009, although use of emamectine ... again due to resistance problems, e.g. azametiphos, diflubenzuron and ... 1997, was also used again in 2009, mainly under ...
... The National Foundation for Cancer Research announced today ... the Department of Molecular and Experimental Medicine at The ... of the 5th Annual Szent-Gyrgyi Prize for Progress in ... on a humble chicken virus in the early 1960s, ...
... older than previously thought, says a new analysis of the ... plants, or angiosperms, first arose 140 to 190 million years ... Proceedings of the National Academy of Sciences pushes back ... 25 to 75 million years earlier than either the fossil ...
Cached Biology News:5th Annual Szent-Györgyi Prize for Progress in Cancer Research awarded 25th Annual Szent-Györgyi Prize for Progress in Cancer Research awarded 3Molecular study could push back angiosperm origins 2Molecular study could push back angiosperm origins 3
(Date:7/22/2014)... China , 22 juli 2014 BGI ... BGI, ,s wereld grootste organisatie op het gebied van ... service ten behoeve van hele menselijke genoomsequentie via het ... In 2013 acquireerde BGI Complete Genomics, ... staat vanwege de in eigen beheer ontwikkelde sequentietechnologieën met ...
(Date:7/22/2014)... In chemical and petrochemical plants, ... sight. The rapid rise of TDL analyzers over ... as a core gas measurement technology, and their ... the gas analyzer technology of choice for many ... some processes have limited their application range. METTLER ...
(Date:7/22/2014)... Seattle, WA (PRWEB) July 22, 2014 Quorum ... a new service for large clinical trials called Quick ... and is designed to address the research industry’s need for ... The service is available for studies planning 50 or ... with a combined planned North American site count of 80 ...
(Date:7/22/2014)... Juli 2014 Qforma, ein führender Anbieter ... von Marcus Bergler zum General Manager ... europäischen kommerziellen Aktivitäten von Qforma bereits als Vice ... anschloss, war er in Positionen als VP Vertrieb ... Deutschland bei IMS Health und als Direktor bei ...
Breaking Biology Technology:BGI Tech introduceert service op gebied van hele menselijke exoomsequencing op geavanceerd Complete Genomics-platform 2METTLER TOLEDO Shows How Tunable Diode Lasers (TDLs) Can Be Installed Where No TDLs Have Gone Before 2Quorum Review IRB Launches New Quick Step™ Service for Large Clinical Trials 2Quorum Review IRB Launches New Quick Step™ Service for Large Clinical Trials 3Qforma gibt Schaffung des neuen Postens als General Manager in Europa bekannt 2
... Red Herring has announced,that ProGenTech Limited was a winner of the ... technology companies based in Asia. , ... Asia and identified the top 100 out of more than 1,000,closely ... "It is truly an honor ...
... the U.S. Patent and Trademark Office has ... for Traumatic Injury to the Nervous System”, ... University of Florida with the company as ... method of determining the presence of neural ...
... Inc.,(Nasdaq: BNVI ) will present findings on the ... Annual San Antonio Breast Cancer Symposium,being held at the Henry ... Bionovo,s poster presentation will ... BN107. As explained by Dr. Emma Shtivelman,Director of Cancer Research ...
Cached Biology Technology:Red Herring Awards ProGenTech Limited for the 2008 Red Herring Asia 100 2 Banyan Biomarkers Announces Issuance of U.S. Patent for Biomarkers for Traumatic Injury 2Bionovo to Present Recent Findings of BN107, its Anticancer Agent, at the 31st Annual San Antonio Breast Cancer Symposium 2
... cDNA Library Panels were designed for full-length ... of PCRs to identify the desired cDNA ... in a 96-well "Master Plate," where each ... Having identified the positive well(s) by gel ...
... Library Panels were designed for full-length gene ... PCRs to identify the desired cDNA clone. ... a 96-well "Master Plate," where each well ... identified the positive well(s) by gel electrophoresis ...
... Technologys R.A.P.I.D. System (Ruggedized Advanced Pathogen ... PCR thermocycler designed for field hospitals, ... In addition to its ruggedness, it ... and specify as the LightCycler instrument. ...
Application: For use as a carrier in nucleic acid purification and precipitation. Physical form: Solution in 10 mM Tris HCl, pH 7.4, 1 mM EDTA Concentration: 9-11 mg/mL Physical Form: buffered aqu...
Biology Products: