Steven L. Ceccio

TL;DR: In this paper, the authors used high-speed visual imaging and cinemagraphic X-ray densitometry to examine the dynamics of a shedding cavity by examining the vapour production rate of the natural cavity and determining how minimal injection of non-condensable gas can substantially alter the cavity production rate, the resulting cavity flow and the cavity shedding process.

TL;DR: In this paper, degradation of polyethylene oxide (PEO) and polyacrylamide (PAM) polymer solutions in large diameter (2.72 cm) turbulent pipe flow at Reynolds numbers to 3 × 105 and shear rates greater than 105 1/s.

TL;DR: In this article, the instantaneous and time-averaged flow fields in the tip region of a ducted marine propulsor are examined, where a primary tip-leakage vortex interacts with a secondary, co-rotating trailing edge vortex and other co-and counterrotating vorticity found in the blade wake.

TL;DR: In this article, a high-Reynolds-number turbulent boundary layer (TBL) flow was investigated, showing that the presence of surface roughness can produce a local increase in drag reduction near the injection location (compared with the flow over a smooth surface).

TL;DR: In this article, the authors used a dual-camera cinematographic particle image velocimetry (CPIV) to monitor the time evolution of large-scale vortices as they formed, evolved downstream and impinged on the downstream cavity wall.