Shock Development in an Electrothermal Shock Tube

Impulse Generation by an Open Shock Tube

Weperformexperimental andnumerical studies of a shock tubewith an open end.The purpose is to investigate the impulse due to the exhaust of gases through the open end of the tube as amodel for a partially filled detonation tube as used in pulse detonation engine testing.We study the effects of the pressure ratio (varied from3 to 9.2) and the volume ratio (expressed as fill fractions) between the...

Incident Shock Wave Interaction with an Axisymmetric Cone Body Placed in Shock Tube

Development of a high-performance cryogenic shock tube

A cryogenic shock tube has been developed as a tool for research in fluid mechanics and low-temperature physics. The shock tube was designed to operate with the test section immersed in a cryogenic liquid. A unique diaphragm-changing mechanism makes this shock tube an economical and practical device. There are several advantages in operating a shock tube at cryogenic temperatures. Shock waves o...

The Contact Surface in an Electromagnetic Shock Tube

An investigation of the luminosity structure, electron density, temperature, and arrival time of electrode material in the shock heated region of the plasma produced in a T-tube has disclosed that for the conditions studied the luminosity from this region originates primarily from gases that have passed through the contact surface. A plausible explanation for this mixing of discharge gases with...

Lung Changes in Shock

In the very beginning stage of the lung changes are Perivascular, capillary wall edema, thickening of the interstitial, lymph and vascular dilatation.  In the late stage of the shock the following changes will occuree  Microthromboses of the lung capillary, polynulcear in­filtration into the interstitial, the existence of polynu­clear in the alveoli, proliferation of interstitial mesenchy­ma,...