As more baby boomers reach retirement, demand for qualified graduates is on the rise
By Thomas K. Grose
Posted April 22, 2009
Hypersonic aircraft—including space vehicles re-entering the atmosphere—routinely rocket along at thrilling but dangerous velocities, well beyond the speed of sound. Back on Earth, working to keep them safe, is an aerospace engineering Ph.D. student named Tom Juliano.
Tom Juliano, an aerospace engineering student working on his Ph.D., installs a Hyper-2000 model onto the sting of the Mach 6 wind tunnel operated by Purdue University in Lafayette, Indiana.
Tom Juliano, an aerospace engineering student working on his Ph.D., installs a Hyper-2000 model onto the sting of the Mach 6 wind tunnel operated by Purdue University in Lafayette, Indiana.
At a Mach 6 wind tunnel operated by Purdue University, Juliano studies airflows nearest the aircraft surface. Some are laminar, or calm; others, turbulent—and they’re the ones that intensify the heat the vehicle is subjected to. Juliano’s experiments show when airflows change from laminar to turbulent. If his predictions are too high, the aircraft will be overclad with heavy thermal protection layers, impeding its performance. If they’re too low, it will burn up. “This is not trivial,” Juliano says of his research.
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