"The Department (of Engery's) Jaguar Supercomputer at Oak Ridge National Laboratory is one of the fastest, most powerful machines in the world – roughly equivalent to 100,000 times the computational power of typical home laptop. We are making the supercomputer available to innovative companies – large and small – who are using it to develop and test new products that can be manufactured in the United States.
A small company in South Carolina and Georgia, the BMI corporation, has used the Jaguar to develop some aerodynamic components that can be attached to the undercarriage of a semi truck to reduce wind resistance. They used highly sophisticated computer modeling to simulate the airflow and optimize the design.
The result is a new product being manufactured in Georgia that will make semi trucks 7 to 12 percent more fuel efficient. The potential impact is huge – outfitting all of America’s 1.3 million Class 8 semi trucks with this kind of technology would save about 1.5 billion gallons of diesel fuel each year, meaning an annual savings of about $5 billion."
--The White House blog