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Shock Tube Images

Tube installation images.  A.  Orienting the test section over the three support pedestals.  B.  Lowering the diaphragm section.  C.  Final installation of entire driven section.

This picture shows the test section and interface section separated by a distance of 0.53 m.  The CCD camera is shown on an optical rail for imaging inside the test section through the 24 cm diameter fused quartz window.  The age of an imaged shocked interface can be varied by changing the distance between the interface and test sections.

The sinusoidal copper plate used to create a membraneless interface between two gases is shown in its fully retracted position on the back side of the interface section.  The retraction is accomplished via a pneumatic piston and there are four steel rods holding the piston support plate rigidly to the shock tube. 

This is a picture from the basement looking up through the square hole in the first floor.  The shock tube is in the process of being rearranged for  a new series of experiments several sections of the tube are about to be lowered through the first floor down to the basement floor.  The wood is the platform of the "crow's nest" of the support structure where maintenance of the driver is conducted.

This is a picture from the second floor balcony looking over the high bay of the mechanical engineering building.  The driver is wrapped in a noise mitigating quilted blanket and the orange safety netting surrounds the crow's nest

This is the interface section of the shock tube.  The picutre on the left shows the optical port containing a cylindrical lens which creates the laser sheet.  Looking through the 12 cm diameter front window the laser sheet is seen as a vertical blue line on the opposite wall.

This is the "artificial lung" used to inhale a cigarette.  After the cylinder volume is filled with smoke, it is attached to a fitting on the shock tube where the smoke is injected; the smoke allows planar imaging of the flow by Mie scattering the laser sheet.


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