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:3/20/2015)... , Mar. 19, 2015 Research and Markets ... "Hand Geometry - Global Strategic Business Report" report to ... for Hand Geometry in US$ Thousands. The report provides separate ... Japan , Europe , ... , and Rest of World. Annual estimates and ...
(Date:3/19/2015)... 19, 2015  NXT-ID, Inc. (NASDAQ: NXTD ) ... the growing mobile commerce market, announces its biometric payment technology, ... that aired this week on Washington DC,s ... In a segment "The Next Great Thing", host Laura ... to pay, and ,a really big breakthrough in mobile payment.,  ...
(Date:3/17/2015)... 17, 2015 Emotient, the leader in ... announced general availability of Emotient Analytics , ... analysis of facial expressions. The system analyzes videos ... products and services. It delivers audience response metrics ... - as derived from facial evidence of emotional ...
Breaking Biology News(10 mins):Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 2Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 3Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 4NXT-ID's Wocket Smart Wallet Featured on Fox News Segment, "The Next Great Thing" 2NXT-ID's Wocket Smart Wallet Featured on Fox News Segment, "The Next Great Thing" 3New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 2New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 3New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 4
... of Tissue Engineering asked 24 leaders in the field what ... critical success by the year 2021 and published their findings ... Engineering is a peer-reviewed journal published by Mary Ann Liebert, ... A survey of the journals editorial boardcomprising leaders in ...
... Researchers at the University of Illinois have developed a ... will fundamentally transform the understanding of how plants and ... The new model takes into account the role of ... to climate change and rising atmospheric carbon dioxide. ...
... Ind. - As the United Nations climate negotiations proceed ... toward quantifying the "socioclimatic" exposure of different countries to ... University and the Abdus Salam International Centre for Theoretical ... the United States - major greenhouse gas-emitting nations that ...
Cached Biology News:Setting a course for the future of tissue engineering 2New model revises estimates of terrestrial carbon dioxide uptake 2New model revises estimates of terrestrial carbon dioxide uptake 3Scientists develop new measure of 'socioclimactic' risk 2Scientists develop new measure of 'socioclimactic' risk 3Scientists develop new measure of 'socioclimactic' risk 4
(Date:3/29/2015)... Whitehouse, NJ (PRWEB) March 29, 2015 ... strict deadlines often required by our pharmaceutical manufacturing clients, ... renewed its sponsorship of the Berkenstock Race Team for ... track requires not only speed, but a strong sense ... same principles that lead to success in the quality ...
(Date:3/27/2015)... Mich. , March 27, 2015  Neogen Corporation ... LLC, has adopted a prearranged trading plan in accordance ... Herbert , Chairman and CEO of Neogen Corporation, is ... of Neogen Corporation common stock. Herbert does ... disclosure was appropriate. The filing is only for a ...
(Date:3/27/2015)... WuXi PharmaTech (Cayman) Inc. (NYSE: ... technology platform company serving the global pharmaceutical, biotechnology, ... Investigational New Drug (IND) application for WuXi MedImmune,s ... been accepted for review by the China Food ... September 2012, MedImmune, the global biologics research and ...
(Date:3/26/2015)... PRC Clinical, a Silicon-Valley based contract ... executive appointments effective immediately. , Mike Catelani will assume ... of the Board of Directors. Daniel Head is appointed ... will assume the position of Senior Director of Clinical ... (COO), has been appointed to the position of President ...
Breaking Biology Technology:Whitehouse Laboratories Reaffirms Commitment to Speedy Results – Renews Sponsorship of Berkenstock Racing Team 2Neogen CEO adopts 10b5-1 Trading Plan 2Investigational New Drug Application for WuXi MedImmune's Monoclonal Antibody Accepted for Review by CFDA 2Investigational New Drug Application for WuXi MedImmune's Monoclonal Antibody Accepted for Review by CFDA 3PRC Clinical Announces Key Management Appointments and Launches East Coast Operations 2PRC Clinical Announces Key Management Appointments and Launches East Coast Operations 3
... the spawning ground for the next wave of high-growth investments, ... market, a diversified range of opportunities await later-stage institutional investors. ... Center for Venture Research at the University ... nearly 11 percent in 2006, with total investments of $25.6 ...
... Gov. Jim Doyle has announced new investments ... engineers in Milwaukee. , ,The investments include an additional $10 ... of Wisconsin and other area institutions, plus $3 million ... University of Wisconsin-Milwaukee , and $500,000 to help design the ...
... - Alfalight , a manufacturer of high-power ... contract worth $1.7 million from the U.S. Army ... develop pump modules suitable for pumping high-power, fiber-laser systems, ... applications and new commercial products. , ,Manoj Kanskar, vice ...
Cached Biology Technology:National angel investment grew 11 percent in `06 2National angel investment grew 11 percent in `06 3Doyle outlines spending for Medical College, UWM 2
Cells are grown in triple flasks, roller bottles, or NUNC Factory. Viability and growth curves are generated from a parallel representative culture....
NovaScreen offers cell biology, cell culture and molecular biology services for companies who lack a cell culture facility....
... effective cell culture services for the production ... at a reasonable price is our primary ... commercial product, we strive toward customer satisfaction. ... bottles, hollow fiber, and bioreactor technologies, Affinity ...
Standard and modified oligonucleotides up to 150 nt-long at any scale for broad applications. Price starts from 30p/base (10 nmole scale)....
Biology Products: