Journal article
Electrothermal filamentation of igniting plasmas
- Abstract:
- Dense, hot plasmas are susceptible to the electrothermal instability: a collisional process which permits temperature perturbations in electron currents to grow. It is shown here for the first time that linearising a system comprised of two opposing currents and a mobile ion-background as three distinct fluids yields unstable modes with rapid growth rates (∼ 1013 s −1 ) for wavenumbers below a threshold kth. An analytical threshold condition is derived, this being surpassed for typical hot-spot and shell parameters. Particle-in-cell simulations successfully benchmark the predicted growth rates and threshold behaviour. Electrothermal filamentation within the shell will impact the burn wave propagation into the cold fuel and resulting burn dynamics.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
Actions
Access Document
- Files:
-
-
(Preview, Version of record, pdf, 420.6KB, Terms of use)
-
- Publisher copy:
- 10.1103/PhysRevE.110.035205
Authors
- Publisher:
- American Physical Society
- Journal:
- Physical Review E: Statistical, Nonlinear, and Soft Matter Physics More from this journal
- Volume:
- 110
- Article number:
- 035205
- Publication date:
- 2024-09-12
- Acceptance date:
- 2024-07-29
- DOI:
- EISSN:
-
1550-2376
- ISSN:
-
1539-3755
- Language:
-
English
- Pubs id:
-
2018833
- Local pid:
-
pubs:2018833
- Deposit date:
-
2024-07-30
Terms of use
- Copyright date:
- 2024
- Rights statement:
- Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
- Licence:
- CC Attribution (CC BY)
If you are the owner of this record, you can report an update to it here: Report update to this record