Featured Research

from universities, journals, and other organizations

Simple Sandpile Model Helps Solve Problems Of Fusion Power

Date:
February 22, 2001
Source:
University Of Warwick
Summary:
A team of physicists from the University of Warwick, and the EURATOM/UKAEA fusion research programme at the Culham Science Centre, have found a new simple and elegant way of using the science of 'sandpiles' to achieve a clear model of how a fusion plasma 'self organises' itself into a superstable state - a crucial key to power generation from fusion plasma.

A team of physicists from the University of Warwick, and the EURATOM/UKAEA fusion research programme at the Culham Science Centre, have found a new simple and elegant way of using the science of 'sandpiles' to achieve a clear model of how a fusion plasma 'self organises' itself into a superstable state - a crucial key to power generation from fusion plasma.

Related Articles


This result is important because it demonstrates a comparatively simple link between space, astrophysical, and fusion plasmas and their overall confinement properties, and is a clear and welcome example of the unity of physics.

Nuclear fusion harnesses the same processes that generate the sun's energy - plasma fusion. This plasma gas is too hot to be contained by a conventional vessel so magnetic fields, shaped like a US donut (tokamak), are used. Temperatures hotter than the centre of the sun have been sustained for tens of seconds in a plasma volume of tens of cubic metres but the challenge is then to keep this small artificial sun burning and confined in its magnetic bottle.

Intriguingly, fusion plasmas have been found to self organise under certain conditions to give exceptionally good confinement. This superstable 'H mode' is not well understood but may hold the key to creating a stable fusion plasma power generator.

The University of Warwick and the Culham Science Centre team used sandpile modelling, as many other research teams have, on the problem of stable plasma confinement as many have thought that there was a link to self organisation - the ability of complex systems to re- organise internally to choose a preferred state - as it is a ubiquitous phenomenon in nature. They found a numerical 'sandpile' that mimics the self organisation of the fusion plasma to its superstable 'H mode' and that 'sandpile' model is simple enough to allow detailed theoretical analysis.

A paper, detailing their success in using this approach will be published in Physical Review Letters, on 19th March 2001. This work was supported at Warwick by the Particle Physics and Astronomy Research Council, and at Culham by EURATOM and the DTI.


Story Source:

The above story is based on materials provided by University Of Warwick. Note: Materials may be edited for content and length.


Cite This Page:

University Of Warwick. "Simple Sandpile Model Helps Solve Problems Of Fusion Power." ScienceDaily. ScienceDaily, 22 February 2001. <www.sciencedaily.com/releases/2001/02/010222075235.htm>.
University Of Warwick. (2001, February 22). Simple Sandpile Model Helps Solve Problems Of Fusion Power. ScienceDaily. Retrieved February 28, 2015 from www.sciencedaily.com/releases/2001/02/010222075235.htm
University Of Warwick. "Simple Sandpile Model Helps Solve Problems Of Fusion Power." ScienceDaily. www.sciencedaily.com/releases/2001/02/010222075235.htm (accessed February 28, 2015).

Share This


More From ScienceDaily



More Matter & Energy News

Saturday, February 28, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Elon Musk's Hyperloop Moves Forward

Elon Musk's Hyperloop Moves Forward

Buzz60 (Feb. 27, 2015) Zipping around at 800-miles an hour is coming closer to reality in California. An entire town is being built around Elon Musk&apos;s Hyperloop concept and it wants you to stop in for a ride when it&apos;s ready. Brett Larson is on board. Video provided by Buzz60
Powered by NewsLook.com
Vibrating Bicycle Senses Traffic

Vibrating Bicycle Senses Traffic

Reuters - Innovations Video Online (Feb. 26, 2015) Dutch scientists have developed a smart bicycle that uses sensors, wireless technology and video to warn riders of traffic dangers. Ben Gruber reports. Video provided by Reuters
Powered by NewsLook.com
In Japan, Robot Dogs Are for Life -- And Death

In Japan, Robot Dogs Are for Life -- And Death

AFP (Feb. 25, 2015) Robot dogs are the perfect pet for some in Japan who go to repairmen-turned-vets when their pooch breaks down - while a full Buddhist funeral ceremony awaits those who don&apos;t make it. Duration: 02:40 Video provided by AFP
Powered by NewsLook.com
London Show Dissects History of Forensic Science

London Show Dissects History of Forensic Science

AFP (Feb. 25, 2015) Forensic science, which has fascinated generations with its unravelling of gruesome crime mysteries, is being put under the microscope in an exhibition of real criminal investigations in London. Duration: 00:53 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