| Autor: |
Gregory Orlicz, Kathy Prestridge, Sridhar Balasubramanian, Balakumar Balasubramaniam |
| Rok vydání: |
2011 |
| Předmět: |
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| Zdroj: |
41st AIAA Fluid Dynamics Conference and Exhibit. |
| DOI: |
10.2514/6.2011-3709 |
| Popis: |
Experiments are carried out at the Los Alamos Gas Shock Tube facility where a varicose-perturbed, thin, heavy-gas curtain is impulsively accelerated by planar shock waves of varying strength within the weak shock regime (M ≤ 1.5). The resulting RichtmyerMeshkov instability and subsequent fluid mixing is interrogated using both PIV (particle image velocimetry) and PLIF (planar laser induced fluorescence) simultaneously. Presented are the time evolution of density maps and vorticity maps for each Mach number. These 2-D maps help to elucidate the differences in mixing at both large and small scales in the flow when Mach number is varied. Several parameters derived from these maps are plotted with time. It is found that if the time axis is scaled with the convection velocity, the rate of change of these parameters with distance traveled can be effectively collapsed. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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