Scallop shells exhibit optimization of riblet dimensions for drag reduction.

From: The Biological Bulletin | Date: June 1, 1997| Author: Anderson, Erik J.; DeMont, M. Edwin; MacGillivray, Patrick S. | Copyright information

Drag reduction by stream wise surface grooves, or riblets, has been observed by engineers and has been suggested to apply to certain biological systems. Drag reductions as high as 8% have been observed (1), leading to practical nautical and aeronautical applications (2, 3, 4). The shells of several species of scallop, including Placopecten magellanicus, display riblets arranged radially, and therefore roughly parallel to the flow during swimming [ILLUSTRATION FOR FIGURE 1A OMITTED]. The dimen...

Read all of this article with a FREE trial to HighBeam Research

Related newspaper, magazine, and journal articles from HighBeam Research

LEADING EDGE ACCUSES FIRM OF CLONING
The Boston Globe ; Leading Edge Products Inc., which made its fortune selling IBM-compatible "clone" computers, is itself being cloned -- and doesn't like it. The Canton company filed suit yesterday against fledgling Delta Computer Corp. alleging theft of trade secrets and other charges arising from the defection to
LEGAL PROBLEMS MOUNT FOR LEADING EDGE
The Boston Globe ; Leading Edge Products Inc.'s problems mounted yesterday as six dealers pressed to have the firm declared bankrupt and the FBI said it would launch an investigation. The dealers filed a petition in US Bankruptcy Court in Boston claiming the Canton personal computer company owes them $799,000 for
WHAT NOW, KING OF THE CLONES? LEADING EDGE FOUNDER FINDS LITTLE MERCY IN CHAP. 11
The Boston Globe ; The public downfall of Michael B. Shane came with astonishing speed. In two brief weeks the temperamental creator of the Leading Edge personal computer tumbled from "King of the Clones" to a multimillion-dollar debtor whose business dealings are being scrutinized by the Federal Bureau of
LEADING EDGE TARGET OF ACTION BY DEALER INVOLUNTARY BANKRUPTCY SOUGHT FOR CANTON FIRM
The Boston Globe ; A Seattle computer dealer has begun bankruptcy proceedings against Leading Edge Products Inc., the Canton computer company that owes millions of dollars and is negotiating to be sold. "I want my money, and I want it now," said Jeff Sandine, president of Ballard Computer Inc., in an interview
LEADING EDGE TO SELL NAME TO MAIN CLIENT DEALERS WORRIED ABOUT THEIR CASH, FIRM'S FATE
The Boston Globe ; A group of dealers met yesterday in Chicago to discuss the fate of Leading Edge Products Inc., a day after the company disclosed that it signed an agreement to sell its name and primary business contract to one of its major dealers, PC Systems of Riviera Beach, Fla. Computer dealers who stand to
COURT ORDER PREVENTS SALE BY LEADING EDGE
The Boston Globe ; Financially pressed Leading Edge Products Inc. of Canton has been ordered to refrain from transferring or selling any of its assets. The order follows the company's disclosure Wednesday that it signed an agreement to sell its name and primary business to PC Systems, a Florida-based computer dealer.
LEADING EDGE FILES FOR BANKRUPTCY
The Boston Globe ; In an apparent bid to retain some control over its destiny, Leading Edge Products Inc., parent company of the financially strapped Canton computer distributor, has filed for Chapter 11 bankruptcy protection from its creditors. The petition was submitted one day after six computer dealers petitioned
LEADING EDGE CHAIRMAN ASKS DEALERS FOR SUPPORT
The Boston Globe ; Michael B. Shane, the embattled founder and chairman of Leading Edge Products Inc. of Canton, yesterday urged computer dealers owed hundreds of thousands of dollars by Shane to support the proposed sale of Leading Edge to a Florida computer dealer. Shane pledged to pay the dealers interest on the
The tomorrow people: young movers and shakers who gathered at a 'hidden' networking forum in London received some genuinely innovative advice.(leading edge)
Grocer ; Which group are you in? Are you wonderful or fabulous? Gorgeous or sexy? If you find yourself at a grocery industry event facing these questions amid a sea of young flesh faces, there is a good chance you are at IGD's annual Leading Edge Convention, where things are never done by role--and the
LEADING EDGE HAS $16.5M PLAN TO GET OUT OF THE HOLE
The Boston Globe ; Hoping to put a tumultuous year behind it, the once high-flying Leading Edge Products yesterday presented creditors with a $16.5 million reorganization plan that, if approved, will free the computer company from Chapter 11 bankruptcy status. Leading Edge agrees to gradually repay all obligations to