Measurement of Richtmyer–Meshkov mode coupling under steady shock conditions and at high energy density
- Univ. of Michigan, Ann Arbor, MI (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Univ. of Michigan, Ann Arbor, MI (United States); Nuclear Research Center, Beer-Sheva (Israel)
- Univ. of Michigan, Ann Arbor, MI (United States)
We present experiments observing Richtmyer-Meshkov mode coupling and bubble competition in a system arising from wellcharacterized initial conditions and driven by a strong (Mach ~8) shock. These measurements and the analysis method developed to interpret them provide an important step towards the possibility of observing self-similarity under such conditions, as well as a general platform for performing and analyzing hydrodynamic instability experiments. Here, a key feature of these experiments is that the shock is sustained su ciently long that this nonlinear behavior occurs without decay of the shock velocity or other hydrodynamic properties of the system, which facilitates analysis and allows the results to be used in the study of analytic models.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Univ. of Michigan, Ann Arbor, MI (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Fusion Energy Sciences (FES)
- Grant/Contract Number:
- AC52-06NA25396; NA0001840; NA0002032; FC52-08NA28302
- OSTI ID:
- 1329895
- Alternate ID(s):
- OSTI ID: 1252565; OSTI ID: 1337788
- Report Number(s):
- LA-UR-15-26239
- Journal Information:
- High Energy Density Physics, Vol. 17, Issue PB; ISSN 1574-1818
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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