In an experiment on how turbulent boundary layers respond to acceleration in the flow around them, aerospace engineers at the observed an unexpected internal boundary layer. In an experiment on how ...

There is no clearly defined Mach number that marks the boundary between supersonic and hypersonic flight. But Mach 5 is generally taken by aerospace engineers to be where hypersonic speed begins. The ...

Convective motions driven by core cooling have a structure that is three-dimensional and time-dependent. Consequently, the dynamics of the interaction between this flow and an underlying dense layer ...

The Boundary Layer Transition (BOLT) payload. Credit: U.S. Air Force Office of Scientific Research/Johns Hopkins APL In another blow for U.S. hypersonic flight testing, John Hopkins University Applied ...

Chris James receives funding from the University of Queensland, the Australian Research Council, and the U.S. Office of Naval Research.. The BOLT II hypersonic flight experiment will launch tonight ...