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The Root's Future 25: A New Name for the Next Generation of Changemakers

The Root's Future 25: A New Name for the Next Generation of Changemakers
theroot.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from theroot.com Daily Mail and Mail on Sunday newspapers.

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Researchers advance detonation wave propulsion for hypersonic flight

Researchers advance detonation wave propulsion for hypersonic flight
Researchers from the University of Central Florida and the US Naval Research Laboratory have discovered an experimental configuration and flow conditions that generate a stabilized oblique detonation a phenomenon that has the potential to revolutionize high-speed propulsion of the future. An open-access paper on their work is published in
Proceedings of the National Academy of Sciences (PNAS).
Future terrestrial and interplanetary travel will require high-speed flight and reentry in planetary atmospheres by way of robust, controllable means. This, in large part, hinges on having reliable propulsion systems for hypersonic and supersonic flight. Given the availability of fuels as propellants, we likely will rely on some form of chemical or nuclear propulsion, which means using various forms of exothermic reactions and therefore combustion waves. Such waves may be deflagrations, which are subsonic react ....

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New propulsion system could enable jets to reach speeds up to Mach 17

The new propulsion system contains a chamber to stabilize detonation
Instead of detonation traveling up or down, it is captured on a ramp
This allows it to be used as a power source and not be released around the craft
Experts conducted an experiment that stabilized it for three seconds
This is the first time a detonation has been shown to be stabilized experimentally
Scientists say this method will provide speeds from Mach 6 to Mach 17 ....

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Flying at Speeds up to Mach 16 Could Become Reality

Flying at Speeds up to Mach 16 Could Become Reality
In their latest research published Monday in the journal
Proceedings of the National Academy of Sciences, the researchers discovered a way to stabilize the detonation needed for hypersonic propulsion by creating a special hypersonic reaction chamber for jet engines.
“There is an intensifying international effort to develop robust propulsion systems for hypersonic and supersonic flight that would allow flight through our atmosphere at very high speeds and also allow efficient entry and exit from planetary atmospheres,” says study co-author Kareem Ahmed, an associate professor in UCF’s Department of Mechanical and Aerospace Engineering. “The discovery of stabilizing a detonation the most powerful form of intense reaction and energy release has the potential to revolutionize hypersonic propulsion and energy systems.” ....

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'Fast and furious' | TheUnion.com

'Fast and furious' | TheUnion.com
theunion.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from theunion.com Daily Mail and Mail on Sunday newspapers.

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