Suppression of Richtmyer-Meshkov Instability via Special Pairs of Shocks and Phase Transitions
Journal Article
·
· Physical Review Letters
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Nevada National Security Site (NNSS), Santa Barbara, CA (United States). Special Technologies Laboratory (STL)
The classical Richtmyer-Meshkov instability (RMI) is a hydrodynamic instability characterizing the evolution of an interface following shock loading. In contrast to other hydrodynamic instabilities such as Rayleigh-Taylor, it is known for being unconditionally unstable: regardless of the direction of shock passage, any deviations from a flat interface will be amplified. In this article, we show that for negative Atwood numbers, there exist special sequences of shocks which result in a nearly perfectly suppressed instability growth. Here, we demonstrate this principle computationally and experimentally with stepped fliers and phase transition materials. A fascinating immediate corollary is that in specific instances, a phase-transitioning material may self-suppress RMI.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE; USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- AC52-07NA27344
- OSTI ID:
- 2406150
- Alternate ID(s):
- OSTI ID: 2281030
- Report Number(s):
- LLNL-JRNL-846621; 1070187
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 2 Vol. 132; ISSN 0031-9007
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Design optimization for Richtmyer–Meshkov instability suppression at shock-compressed material interfaces
Shock-interface interaction: Current research on the Richtmyer- Meshkov problem
Journal Article
·
Tue Aug 09 20:00:00 EDT 2022
· Physics of Fluids
·
OSTI ID:1902020
Shock-interface interaction: Current research on the Richtmyer- Meshkov problem
Conference
·
Wed Jul 17 00:00:00 EDT 1991
·
OSTI ID:6031780