Mechanical engineering professors Douglas G. Bohl and Brian Helenbrook
are working to design a faster, more aerodynamic sled for the United States Luge Team in time for the 2014 Winter Olympics in Sochi, Russia.
Bohl got involved after meeting sports programs director and two-time Olympic luge medalist Mark Grimmette in Lake Placid. The Clarkson professor proposed an idea for a research project to reduce aerodynamic drag on the sled.
“We’ve wanted to do this for years, but did not have the resources,” says Gordy Sheer, director of marketing and sponsorship for USA Luge. “We also needed someone who understood the sport and its nuances.”
“As athletes become better, equipment plays a bigger part in winning,” says Bohl. “I don’t know if there’s a ‘silver bullet,’ but I think we can make a difference.”
Luge is the only Winter Olympics gravity sport measured to 1/1000th of a second, so very small changes in drag can greatly affect times.
“We’ll build a computer model of a sled with a slider on it, compute the drag, examine the flow going past and finally put an actual sled in Clarkson’s wind tunnel to make drag measurements,” says Bohl.
Eventually, a sled will be built based on the Clarkson team’s research and taken to the low speed (sub-sonic) wind tunnel at the San Diego Air and Space Technology Center where USA Luge sleds are tested.
“We’re looking for evolution, not revolution,” says Sheer. “The Clarkson team will be looking at the aerodynamic shell and aerodynamic shape of the sled as a whole.”
Placid Boatworks, a custom canoe shop in Lake Placid, builds the pods or shells, which act as a seat for the athletes. The kufens, which are the bridge between the steel runners and the pod, are hand carved from ash and wrapped in fiberglass.
“There is lots of artistry in luge sled design,” says Bohl. “Art will direct you to good solutions through natural selection, but basic sled designs haven’t changed in 10 to 15 years. Scientists and engineers might be able to bring some new ideas into play.”