Journal
PHYSICS OF PLASMAS
Volume 29, Issue 6, Pages -Publisher
AIP Publishing
DOI: 10.1063/5.0087035
Keywords
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Categories
Funding
- Advanced Research Projects Agency-Energy (ARPA-E), U.S. Department of Energy (DOE) [DE-AR0001272, DE-SC0020431]
- U.S. DOE National Nuclear Security Administration (NNSA) [DE-NA0003856]
- University of Rochester
- New York State Energy Research and Development Authority
- Los Alamos National Laboratory/Triad National Security, LLC [89233218CNA000001]
- U.S. Department of Energy/National Nuclear Security Administration
- National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility located at the Lawrence Berkeley National Laboratory using NERSC Award [DE-AC02-05CH11231, FES-ERCAP0017949]
- U.S. DOE NNSA [DE-NA0003842]
- LANL [536203, 630138]
- LLNL [B632670]
- U.S. DOE NNSA
- U.S. DOE Office of Science
- U.S. Department of Energy (DOE) [DE-SC0020431] Funding Source: U.S. Department of Energy (DOE)
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In this study, the merging process of magnetized plasma jets was modeled using fully kinetic particle-in-cell simulations. The modified two-stream instability was identified as the main mechanism responsible for stopping the plasma jets and preventing species interpenetration. The results showed that the merged plasma had electron and ion Hall parameters greater than unity and a plasma beta close to unity, which are desired characteristics for PLX experiments. Additionally, the 2D simulations validated the results of the radiation magneto-hydrodynamics code FLASH, which will be used for modeling future PJMIF experiments.
The merging process of magnetized plasma jets with parameters relevant to the plasma-jet-driven magneto-inertial fusion (PJMIF) design and the plasma liner experiment (PLX) is modeled by fully kinetic particle-in-cell (PIC) simulations in one and two spatial dimensions. The modified two-stream instability is identified to be the main mechanism responsible for stopping the plasma jets and preventing species interpenetration. The electron and ion Hall parameters of the merged plasma are greater than unity, and the plasma beta is close to unity, which is the desired characteristic of planned experiments at PLX. Our 2D PIC simulations validate the results of the radiation magneto-hydrodynamics code FLASH, which will be the primary tool for modeling various stages of future PJMIF experiments. Published under an exclusive license by AIP Publishing.
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