INVESTIGATION OF SHOCK-ACCELERATED, UNSTABLE GAS CYLINDERS USING SIMULTANEOUS DENSITY-FIELD VISUALIZATION AND PIV
Conference
·
OSTI ID:975636
- Chris D.
- Katherine P.
- Cindy A.
- Paul M.
- Peter V.
- Robert F.
Simultaneous density and particle image velocimetry measurements are performed on a shock-accelerated, unstable cylinder of dense gas. Density-based instability growth estimates show good agreement with two-dimensional simulations by an adaptive-mesh Eulerian solver. However, a more rigorous comparison between the computational velocity field and the PIV data reveals significant differences between the fluctuating velocity magnitudes in the flowfields. Flow visualization results from a double-cylinder gas configuration, in which the unstable cylinders interact spanwise as they evolve, are also compared with a preliminary simulation.
- Research Organization:
- Los Alamos National Laboratory
- Sponsoring Organization:
- DOE
- OSTI ID:
- 975636
- Report Number(s):
- LA-UR-01-3802
- Country of Publication:
- United States
- Language:
- English
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