The Shock Tube
The figure to the right shows some of the physical features of the vertical
|Driven square cross section, side
|Maximum Driver Pressure
Key design characteristics include:
- Vertical orientation, ideal for studying the interface between two
different gases accelerated by a shock wave.
- Large cross-sectional area to minimize interference of the wall boundary
layer with the planar interface.
- High strength steel and concrete construction, allows experiments
involving strong shocks with the driven section at atmospheric pressure.
- The internal square cross-section is achieved in the interface and test
sections by welding together 67 mm thick steel plates. This being a
prohibitively expensive construction process for the entire tube, a novel
approach was used for the remaining driven sections using commercially
available steel pipe and a stainless steel liner.
gap between the square liner and the round pipe is filled with concrete.
- Modular construction for studying perturbation and mixing growth rates as
a function of time.
- Schlieren, shadowgraph and planar imaging optical techniques.
- Combustion driver for high driver temperature experiments.
- Shock piezoelectric pressure transducers located along the tube length for
gathering pressure traces