Drummond Tunnel Simulations
This material supports the paper
"Simulation of a complete reflected shock tunnel
showing a vortex mechanism for flow contamination."
Unless otherwise stated, the animations correspond to the
approximately tailored condition discussed in the paper.
- Image 1
shows development of the flow into the shock tube shortly
after main diaphragm rupture. Top half of figure is a numerical
schlieren while lower half shows mass fractions for the
The following animations correspond to Figures 8 and 9 in the paper.
They show the details of the shock-reflection process and the
generation of vorticity in the nozzle-reservoir region.
- Image 2
Top half of figure is a numerical
schlieren while lower half shows mass fractions.
- Image 3
Mass fractions only.
- Image 4
Numerical schlieren only.
- Image 5
Top half is accumulated vorticity, lower half is baroclinic vorticity
Nozzle and Test Section
The following animations correspond to Figure 10 in the paper.
They show some of the details of the shock-reflection process
together with the
propagation of the starting shock structure through the nozzle.
- Image 6
Numerical schlieren image showing flow establishment through the nozzle
and propagation of disturbances into the test section.
- Image 7
Numerical schlieren image which has been
mirror-imaged to complete the picture.
- Image 8
Mass fractions show a vortex propagating through
the nozzle throat and contaminating the test-section flow.
Richard Goozee, Peter Jacobs and David Buttsworth, October 2005.