期刊
HIGH ENERGY DENSITY PHYSICS
卷 17, 期 -, 页码 263-269出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.hedp.2015.09.001
关键词
Hydrodynamic instability; Laser; Richtmyer-Meshkov; Shock waves; Laboratory experiments
资金
- NNSA-DS
- National Laser User Facility Program [DE-NA0002032]
- Laboratory for Laser Energetics, University of Rochester by the NNSA/OICF [DE-FC52-08NA28302]
- U.S. Department of Energy through Los Alamos National Laboratory [DE-AC52-06NA25396]
- SC-OFES Joint Program in High-Energy-Density Laboratory Plasmas [DE-NA0001840]
We present experiments observing Richtmyer-Meshkov mode coupling and bubble competition in a system arising from well-characterized initial conditions and driven by a strong (Mach similar to 8) shock. These measurements and the analysis method developed to interpret them provide an important step toward the possibility of observing self-similarity under such conditions, as well as a general platform for performing and analyzing hydrodynamic instability experiments. A key feature of these experiments is that the shock is sustained sufficiently 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. Published by Elsevier B.V.
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