Featured Research

from universities, journals, and other organizations

Optimal industrial mixer creates a pattern that resembles a cat's eye

Date:
October 29, 2013
Source:
American Institute of Physics (AIP)
Summary:
As any amateur baker knows, proper mixing is crucial to a perfect pastry. Mix too little and ingredients will not be evenly distributed; beat instead of fold, and a soufflé will fall flat. Mixing strategies are even more critical for industrial products, where every batch that is manufactured must meet the same exacting standards and yet, to manage costs, be created in the least amount of time.

This is an instantaneous illustration of the lamination observed during a cat's eyes flip mixing sequence.
Credit: L.Rossi/CEA

As any amateur baker knows, proper mixing is crucial to a perfect pastry. Mix too little and ingredients will not be evenly distributed; beat instead of fold, and a soufflé will fall flat. Mixing strategies are even more critical for industrial products, where every batch that is manufactured must meet the same exacting standards and yet, to manage costs, be created in the least amount of time.

Related Articles


In a new paper published in the journal Physics of Fluids, fluid mechanics expert Lionel Rossi, a researcher at the French Alternative Energies and Atomic Energy Commission (CEA), and his colleagues from Imperial College London describe a new recipe for industrial mixing with the potential to optimize mixers.

The process uses magnets to generate synchronized flows of jets that move in opposite directions and whose positions are slightly offset from each other. By controlling the timing of the jets and their strength and position, the researchers created a promising mixing sequence called a "cat's eyes flip flow," named because the resulting pattern, as visualized with colored dyes added to the solution, resembles the delicate almond shape of a cat's eye. They studied the flows created by this sequence and compared them to other patterns, and found that the cat's eyes flip flows were most efficient at mixing solutions.

"The new sequence is both robust and fast, and its relative simplicity makes it transferable to mixing devices at all scales," Rossi said. At very small scales, he noted, the sequence should help reduce mixing times and possibly even the space required for mixing. This would be of interest for lab-on-a-chip applications "that require numerous manipulations in a minimum of time and space," Rossi said. At larger scales, he continued, "the sequence should increase performance while reducing energy consumption," for example by reducing the stirring of saturated regions, making the process more environmentally friendly.

Next, the researchers plan to develop tailored mixing strategies applicable to almost any mixing need, by using different sequences of synchronized flows as building blocks.


Story Source:

The above story is based on materials provided by American Institute of Physics (AIP). Note: Materials may be edited for content and length.


Journal Reference:

  1. Lionel Rossi, Denis Doorly, Dimitri Kustrin. Lamination, stretching, and mixing in cat's eyes flip sequences with varying periods. Physics of Fluids, 2013; 25 (7): 073604 DOI: 10.1063/1.4812798

Cite This Page:

American Institute of Physics (AIP). "Optimal industrial mixer creates a pattern that resembles a cat's eye." ScienceDaily. ScienceDaily, 29 October 2013. <www.sciencedaily.com/releases/2013/10/131029142852.htm>.
American Institute of Physics (AIP). (2013, October 29). Optimal industrial mixer creates a pattern that resembles a cat's eye. ScienceDaily. Retrieved March 5, 2015 from www.sciencedaily.com/releases/2013/10/131029142852.htm
American Institute of Physics (AIP). "Optimal industrial mixer creates a pattern that resembles a cat's eye." ScienceDaily. www.sciencedaily.com/releases/2013/10/131029142852.htm (accessed March 5, 2015).

Share This


More From ScienceDaily



More Matter & Energy News

Thursday, March 5, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Did the Simpsons Figure out the Higgs Boson Particle Years Before Scientists

Did the Simpsons Figure out the Higgs Boson Particle Years Before Scientists

Buzz60 (Mar. 4, 2015) — During a 1998 Simpsons episode, Homer Simpson scribbled a seemingly gibberish equation on a chalkboard. Turns out that equation is a shake off from predicting the actual nano mass of the God Particle. Patrick Jones (@Patrick_E_Jones) explains. Video provided by Buzz60
Powered by NewsLook.com
Wearables Now the Must-Haveables

Wearables Now the Must-Haveables

Reuters - Business Video Online (Mar. 3, 2015) — Telecom company executives are meeting in Barcelona for the Mobile World Congress, the largest annual trade show for the wireless industry. As Ivor Bennett reports from the show wearable technology is one of the big themes. Video provided by Reuters
Powered by NewsLook.com
Forensic Holodeck Creates 3D Crime Scenes

Forensic Holodeck Creates 3D Crime Scenes

Reuters - Innovations Video Online (Mar. 3, 2015) — A holodeck is no longer the preserve of TV sci-fi classic Star Trek, thanks to researchers from the Institute of Forensic Medicine Zurich, who have created what they say is the first system in the world to visualise the 3D data of forensic scans. Jim Drury saw it in operation. Video provided by Reuters
Powered by NewsLook.com
Solar Plane Passes New Test Ahead of World Tour

Solar Plane Passes New Test Ahead of World Tour

AFP (Mar. 2, 2015) — A solar-powered plane made a third successful test flight in the United Arab Emirates on Monday ahead of a planned round-the-world tour to promote alternative energy. Duration: 01:05 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins