Jen-Ping Chen, Ph.D., associate professor of mechanical and aerospace engineering at the Ohio State University, is leveraging powerful Ohio Supercomputer Center systems to improve the computational fluid dynamics software that engineers use to simulate and evaluate the operation of turbomachinery — pumps, fans, compressors, turbines and other machines that transfer energy between a rotor and a fluid. Chen was the original chief architect of that computer code, appropriately named TURBO, which he developed earlier for NASA.