Subscribe to our free daily newsletters
. 24/7 Space News .

Subscribe to our free daily newsletters

New insight into interaction of volcanic ash with jet engines
by Staff Writers
Liverpool, UK (SPX) Apr 07, 2016

Volcanic ash is widely recognized as being a potentially fatal hazard for aircraft primarily through melting and sticking to the inside of the turbines but is particularly problematic if it affects the cooling system.

Scientists at the University of Liverpool and the Ludwig Maximilian University of Munich have developed a new method to assess the impact of volcanic ash on jet engines.

Little is known scientifically about the effects of volcanic ash on aircraft but the impact it can have on the aviation industry was evidenced when the Eyjafjalla volcano in Iceland erupted in 2010 resulting in prolonged disruption to air travel and significant economic losses exceeding Pounds 1 billion.

Volcanologists from the University analysed samples of volcanic ash from nine different volcanoes to see how its chemical composition controls its behavior upon melting at jet engine temperatures which range between 1100 C and 2000 C.

Volcanic ash is widely recognized as being a potentially fatal hazard for aircraft primarily through melting and sticking to the inside of the turbines but is particularly problematic if it affects the cooling system.

Guidelines on the threat of volcanic ash particles on jet engines rely on early engineering studies which tested the impact of sand and dust particles on road vehicles. Volcanic ash is however chemically different and estimating its potential hazard is complicated by the fact that chemical composition can vary widely amongst volcanoes.

Professor Yan Lavallee, volcanologist at the University's School of Environmental Sciences, said: "Our experiments are the first study to test the conditions for which ash can melt using chemical criteria. Through our experiments we were able to develop a model to predict the melting and sticking conditions of different volcanic ash particles.

"We are able to show that volcanic ash may melt and stick more readily inside jet engines, and that the common use of sand or dust is wholly inadequate for the prediction of the behaviour of volcanic ash, leading to overestimates of sticking temperature and thus severe underestimates of the thermal hazard.

"Any robust future model to assess quantitatively the risk of volcanic ash with jet engines must be based on chemistry and melt theology.

"With the current level of aerial traffic, understanding the generation, transport and impact of volcanic ash becomes a priority and too much is at stake to overlook the role of volcanic ash on aviation."

The research is published in the Nature Communications was funded by the European Research Council (ERC), the von Humbold society and the AXA Research funds.

Thanks for being here;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.

SpaceDaily Contributor
$5 Billed Once

credit card or paypal
SpaceDaily Monthly Supporter
$5 Billed Monthly

paypal only


Related Links
University of Liverpool
Aerospace News at

Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks DiggDigg RedditReddit GoogleGoogle

Previous Report
Australia says possible MH370 debris found on Mauritius
Sydney (AFP) April 3, 2016
Australia's transport minister Sunday said new debris found on the Indian Ocean island of Mauritius would be examined to see if it belonged to MH370, just weeks after two Mozambique fragments were linked to the missing flight. The debris was found on the Mauritius island of Rodrigues by a vacationing couple, reported citing Reunion island website Clicanoo. "The Malaysian gove ... read more

Moon Mission: A Blueprint for the Red Planet

The Lunar Race That Isn't

Earth's moon wandered off axis billions of years ago

Ancient Polar Ice Reveals Tilting of Earth's Moon

Opportunity moves to new locations to the southwest

NASA: Manned mission to Mars still 'long way' off

Mars Express keeps watch on frosty Martian valleys

HiRISE: 45,000 Mars Orbits and Counting

New DNA/RNA Tool to Diagnose, Treat Diseases

ASU to develop the next generation science education courseware for NASA

Space-Related Budget Requests for FY17

NASA Selects American Small Business, Research Institution Projects for Continued Development

China's 1st space lab Tiangong-1 ends data service

China's aim to explore Mars

China to establish first commercial rocket launch company

China's ambition after space station

Russia launches cargo ship to space station

Cargo ship reaches space station on resupply run

Unmanned Cygnus cargo ship launches to ISS on resupply run: NASA

Cygnus Set to Deliver Its Largest Load of Station Science, Cargo

Roscosmos Says Reports on Sea Launch Project Sale Might Be True

India to launch 22 satellites by single rocket in May

NASA's 'Spaceport of the Future' Reaches Another Milestone

MHI signs H-IIA launch deal for UAE Mars mission

Map of rocky exoplanet reveals a lava world

Instrument Team Selected to Build Next-Gen Planet Hunter

Oddball planet raises questions about origins of 'hot Jupiters'

Investigating the Mystery of Migrating 'Hot Jupiters'

New understanding of liquid to solid state transition discovered

Physicists 'undiscovered' technetium carbide

Drexel rolls out method for making the invisible brushes that repel dirt

New state of matter detected in a two-dimensional material

Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News

The content herein, unless otherwise known to be public domain, are Copyright 1995-2017 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement