https://phys.org/news/2018-11-simulating-hypersonic-transitions-smooth-turbulent.html > She and her doctoral student Ozgur Tumuklu, along with Professor Vassilis Theofilis from the University of Liverpool, conducted research that brings a revolutionary understanding to the field of hypersonic flow. > Levin said she studies flow at a very fundamental level to understand the flow, the forces that the flow can create, and the length of time the flow remains stable in terms of microseconds to milliseconds—faster than the blink of an eye.