Shock tube experiments for the study of the Richtmyer-Meshkov instability are presented. The shock tube is vertical with a square inner cross section. Two new techniques are used to prepare the interface and to determine its initial shape, prior to shock-acceleration. The interface is prepared by retracting a sinusoidally shaped plate initially separating CO2 from air at atmospheric pressure. T...

Simple numerical and graphmal procedures are described for the calculation of the imperfect gas effects on the properties of steady and unsteady one-32.msnsions.l isentropic flows, the Prandtl-Meyer expansion round a corner and normal end oblique shock waves. The fun&mental equatmns of each type of flow have been put into a form in which they may be solve2 usmi: the published tables of the equi...

Nasogastric (NG) tube misplacement into the airways is a rare complication. The presence of a cuffed endotracheal or tracheostomic tube often gives primary care providers a false sense of security. This report presents a case of inadvertent NG tube insertion into the right lower lobe bronchus of a 79-year-old patient with advanced chronic obstructive pulmonary disease, resulting in pneumonia an...

The transient phenomena of incident shock waves during its passage through an orifice, a diverging nozzle, and a conical disk as baffles in a tube are numerically simulated. The influence of geometrical configurations of the baffles on shock attenuation is investigated. The results show that the conical disk was most effective configuration to weaken the strength of transmitted shock waves, sin...

Experiments are conducted in a shock tube to study the shock loading of a cylinder and a cylinder bank. The experiments model the loading of the cooling tubes in an inertial confinement fusion reactor where banks of tubes line the reaction chamber. The diffraction of the shock wave is visualized using shadowgraphy. Shock loading of the cylinder(s) is measured with flush mounted piezoelectric pr...