Schlieren and shadowgraph techniques are basic and valuable tools in various scientific
and engineering disciplines. They allow us to see the invisible: the optical inhomogeneities …

The flow in nozzles of different sizes is studied by using transparent nozzles of the same size
as in diesel injectors and refractive index matching. In a steady flow rig, short exposure …

A drop that falls into a deep liquid can either coalesce with the receiving liquid and form a
vortex ring or splash. Which phenomenon actually occurs depends on the impact conditions …

Finite-amplitude, axially symmetric oscillations of small (0.2 mm) liquid droplets in a gaseous
environment are studied, both experimentally and theoretically. When the amplitude of …

The feasibility of using high-power light-emitting diodes (LED) as a light source for high
frame rate schlieren imaging is investigated. Continuous sequences of high-intensity light …

High-speed optical shadowgraphy plays an important role in study of various phenomena
including projectile-target interaction for small caliber projectile. Present work reports …

High speed liquid flows within glass nozzles of very small geometry and the resulting jets
leaving those nozzles were studied. Due to the high flow velocity cavitation films are …

A comprehensive testing of microactuators is decisive (i) to prove the workability,(ii) to
characterize the output parameters,(iii) to provide kinematic and temperature data for a …

The effect of background flow oscillations on a transonic airfoil (NACA 0012) flow was
investigated experimentally. The oscillations were generated by means of a rotating plate …

Cranz-Schardin cameras are low-cost, high-speed cameras. Although developed over 70 yr
ago and available commercially, the design principles are not found in standard texts …