Ohio State University researchers, sponsored by NASA Glenn Research Center, have developed a silencer technology that creates electrical arcs to control turbulence in engine exhaust airflow -- the chief cause of engine noise.
With the flip of a switch, pilots could turn the silencers -- called plasma actuators -- on and off, reducing noise around commercial airports or military airstrips. "One has to reduce the noise while not adversely affecting the thrust -- that is the challenge. When the development of the actuators is complete, they will meet the challenge," said Mohammad Samimy, professor of mechanical engineering at Ohio State University.
The plasma actuators could also provide an additional level of stealth for modern military aircraft. Pilots could fire the electrical arcs in certain patterns to mix the very hot exhaust gas with outside air, significantly reducing the heat signature that shows up on infrared tracking systems.
Read the complete story at: http://link.abpi.net/l.php?20040629A2
Source: NASA
Moisés Jafet Cornelio-Vargas
About Moisés
Physicists, award-winning technologist, parallel entrepreneur, consultant and proud father born in the Dominican Republic.
Interested in HPC, Deep Learning, Semantic Web, Internet Global High Scalability Apps, InfoSec, eLearning, General Aviation, Formula 1, Classical Music, Jazz, Sailing and Chess.
Founder of pluio.com and hospedio.com.
Author of the Sci-fi upcoming novel Breedpeace and co-author in dozens of publications.
Co-founder of MunicipiosAlDia.com, Jalalio Media Consultants and a number of other start-ups.
Former professor and Key-note speaker in conferences and congresses all across the Americas and Europe.
Proud member of the Microchip No.1 flying towards Interestellar space on board NASA's Stardust Mission, as well as member of Fundación Municipios al Día, Fundación Loyola, Fundación Ciencias de la Documentación and a number of other non-for profit, professional organizations, Open Source projects and Chess communities around the world.
All opinions here are his own's and in no way associated with his business interests or collaborations with third-parties.