Turbulence makes many people uneasy or downright queasy. And it's given researchers a headache, too. Mathematicians have been trying for a century or more to understand the turbulence that arises when ...

The boundary layer in high Reynolds number flows is a thin region adjacent to solid surfaces where viscous forces and shear dominate despite the overwhelming inertia of the external stream. At ...

In an experiment on how turbulent boundary layers respond to acceleration in the flow around them, aerospace engineers at the University of Illinois Urbana-Champaign observed an unexpected internal ...