Understanding the implications of the data from recent high-energy-density Kelvin-Helmholtz shear layer experiments
The first successful high energy density Kelvin-Helmholtz (KH) shear layer experiments (O.A. Hurricane, et al., Phys. Plasmas, 16, 056305, 2009; E.C. Harding, et al., Phys. Rev. Lett., 103, 045005, 2009) demonstrated the ability to design and field a target that produces an array of large diagnosable KH vortices in a controlled fashion. Data from these experiments vividly showed the complete evolution of large distinct eddies, from formation to apparent turbulent break-up. Unexpectedly, low-density bubbles/cavities comparable to the vortex size ({approx} 300 - 400 {micro}m) appeared to grow up in the free-stream flow above the unstable material interface. In this paper, the basic principles of the experiment will be discussed, the data reviewed, and the progress on understanding the origin of the above bubble structures through theory and simulation will be reported on.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 967762
- Report Number(s):
- LLNL-PROC-418723; TRN: US0904546
- Resource Relation:
- Journal Volume: 244; Journal Issue: 4; Conference: Presented at: The Sixth International Conference on Inertial Fusion Sciences & Applications, San Francisco, CA, United States, Sep 06 - Sep 11, 2009
- Country of Publication:
- United States
- Language:
- English
A high energy density shock driven Kelvin–Helmholtz shear layer experiment
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journal | May 2009 |
Observation of a Kelvin-Helmholtz Instability in a High-Energy-Density Plasma on the Omega Laser
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journal | July 2009 |
Cavitation
|
book | November 1999 |
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