Dr. Ajay Agrawal, right, with graduate students Justin Williams, left, and Joseph Meadows, center, examine the noise reduction device, or noise sponge (Photo: Zach Riggins, University of Alabama)
The "noise sponge" that can significantly reduce the noise of combustion in jet engines (Photo: Zach Riggins, University of Alabama)
Anyone living near an airport will tell you that combustion engines can be pretty noisy things. The combustion process in jet and other industrial engines can generate sound waves so powerful they can cause intense pulsations that can shake the engine and accelerate mechanical failure. Using a sponge-like material, researchers at the University of Alabama have managed to significantly quiet combustion at the source, providing the potential to make work environments safer, extend the life of valuable equipment, and maybe let those living near an airport sleep a little easier.
Other Images from this Gallery