Navigation Links
Lead-flapping objects experience less wind resistance than their trailing counterparts
Date:11/10/2008

hang and his co-author Leif Ristroph, a doctoral candidate in Cornell's Department of Physics, first calculated the resistance faced by a single flag. They subsequently determined the resistance faced by two flags in tandem.

They found that the leading flag always suffered less drag, or resistance, than did the trailing flag. In addition, they also reported that the leading flag in a tandem of flags experienced less drag than a flag in isolation. Both results are contrary to existing research on fluid force.

The trailing flag acts as a splitting plate that restricts the lateral motion of the oncoming flow, the researchers said in explaining their results. This effect indirectly reduces the motion of the leading flag, which makes the appearance of the leader smaller than usual, yielding less drag. By contrast, the trailing flapping body, which flaps in the oscillating wake of the first, has greater flapping amplitude due to the resonate effect of this wake. This larger appearance in a flow translates to a greater drag.


'/>"/>

Contact: James Devitt
james.devitt@nyu.edu
212-998-6808
New York University
Source:Eurekalert

Page: 1 2

Related biology news :

1. How we see objects in depth: The brains code for 3-D structure
2. Robot fetches objects with just a point and a click
3. A call to infuse scientific knowledge into the human experience
4. Wild chimpanzees appear not to regularly experience menopause
5. Family conditions may affect when girls experience puberty
6. Montana State University researchers find gene that regulates molds resistance to drugs
7. New estrogen receptor found to be key player in tamoxifen resistance
8. Breast cancer treatment resistance linked to signaling pathway
9. Lab study shows methadone breaks resistance in untreatable forms of leukemia
10. How hidden mutations contribute to HIV drug resistance
11. Genetic cause of innate resistance to HIV/AIDS
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/1/2015)...   Medisafe ™, the leading global medication management ... and Android smartphones and tablets, announces ... platform to allow patients to track and correlate their ... patients will be able to visualize in real-time how ... such as glucose levels and blood pressure. ...
(Date:3/24/2015)... and Markets ( http://www.researchandmarkets.com/research/hdgz7h/global_iris ) has announced ... 2015-2019" report to their offering. The ... at a CAGR of 23.5 percent over the period ... and the growth prospects of the Global Iris Recognition ... size, the report considers the revenue generated from sales ...
(Date:3/23/2015)... 23, 2015   HOYOS Labs , a leading ... announced that the Company will demonstrate multiple biometrics-based technologies ... consumers at Connect:ID on March 23 through 25, 2015, ... will highlight the IEEE Biometric Open Protocol Standard; free ... enterprise access control system. BOPS was invented by HOYOS ...
Breaking Biology News(10 mins):Medisafe Announces Launch of Biometric Integration, Enabling Patients to Stay Adherent to Their Meds and See Tangible Health Results 2Global Iris Recognition Market 2015-2019 with 3M Cogent, Bioenable Technologies, Cross Match Technology, Iris ID Systems & Safran Dominating 2HOYOS Labs to Showcase Host of Biometrics Technologies at Connect:ID in Washington, D.C. 2HOYOS Labs to Showcase Host of Biometrics Technologies at Connect:ID in Washington, D.C. 3
... Foldit called some strategies "shocking" in how well they ... scientists., Gamers made headlines in September for unraveling the ... Today, in a paper published online at the ... University of Washington researchers reveal the creative power of ...
... Anyone reading this article is doing it right now. But ... of Virginia Tech College of Engineering researchers has published a ... that details how to learn just that, using microelectromechanical systems ... body through the air we intake. The research paper, ...
... professionals and researchers across the globe believe they are on ... lead to paralysis and death. Despite successful eradication in most ... considered endemic -- and many more in which the virus ... University,s Sackler Faculty of Medicine and the Israeli Ministry of ...
Cached Biology News:Paper uncovers power of Foldit gamers' strategies 2Paper uncovers power of Foldit gamers' strategies 3Researchers using new technology to study breath for toxins 2Researchers using new technology to study breath for toxins 3Polio still a threat to public health 2Polio still a threat to public health 3
(Date:4/21/2015)... April 21, 2015 The North ... in 2014 to $605.1 million by 2019, at a ... Browse through the TOC of North ... of the industry trends and segments, with help of ... Early buyers will receive 10% customization ...
(Date:4/21/2015)... San Diego, CA (PRWEB) April 21, 2015 ... creativity and technology to craft a digital product that ... Visceral recently partnered with Global Biological Standards Institute (GBSI) ... it more modern, clean, and most importantly, strategy-based. , ... explain in person - much less to promote it ...
(Date:4/21/2015)... 2015 AbilTo, Inc., the nation,s leading digital ... has been accepted as a presentation to be included ... place on June 5-6, 2015 in Boston, Massachusetts ... Diabetes Association, the cost of diabetes to the American ... result of increased inpatient, outpatient, and pharmacy costs, the ...
(Date:4/21/2015)... April 21, 2015 Invetech , ... custom automation, and contract manufacturing, and  NanoCellect ... cytometry and cell sorting technology for life science ... novel flow cytometry platform. Headquartered in ... has developed a microchip-based cell sorting technology. NanoCellect,s ...
Breaking Biology Technology:North America Biostimulants Market is Expected to Reach $605.1 Million by 2019, at a CAGR of 14.1% From 2014 to 2019 2North America Biostimulants Market is Expected to Reach $605.1 Million by 2019, at a CAGR of 14.1% From 2014 to 2019 3Visceral Tells GBSI’s Story Within 30 Seconds of Attention 2Visceral Tells GBSI’s Story Within 30 Seconds of Attention 3AbilTo To Present at the 2015 American Diabetes Association Annual Meeting on Remote Delivery of Behavioral Change Therapy 2AbilTo To Present at the 2015 American Diabetes Association Annual Meeting on Remote Delivery of Behavioral Change Therapy 3NanoCellect And Invetech Announce Collaboration To Develop Novel Flow Cytometry Platform For Cell Sorting And Analysis 2NanoCellect And Invetech Announce Collaboration To Develop Novel Flow Cytometry Platform For Cell Sorting And Analysis 3
... Biophysical Society,s 55th Annual Meeting takes place from March ... MD. There, more than 6,500 scientists will gather to ... technology at every level of biophysics -- from atoms ... The Biophysical Society is the largest association in the ...
... graphene. A two-dimensional sheet of carbon one atom thick, ... through the material with 100 times the mobility they ... challenging, say researchers at the National Institute of Standards ... graphene on a substrate transforms its bustling speedway into ...
... Jan. 20, 2011 Ardea Biosciences, Inc. (Nasdaq: ... previously announced underwritten public offering of 2,750,000 shares of ... public of $26.00 per share. The gross proceeds to ... million, before deducting the underwriting discount and other estimated ...
Cached Biology Technology:Biophysical Society to Hold 55th Annual Meeting in Baltimore, Maryland, March 5-9, 2011 2Real-world graphene devices may have a bumpy ride 2Ardea Biosciences Prices Public Offering of Common Stock 2Ardea Biosciences Prices Public Offering of Common Stock 3