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