Seeding the Electrothermal Instability through a Three-Dimensional, Nonlinear Perturbation.
| Autor: | Yu EP; Sandia National Laboratories, Albuquerque, New Mexico 87185, USA., Awe TJ; Sandia National Laboratories, Albuquerque, New Mexico 87185, USA., Cochrane KR; Sandia National Laboratories, Albuquerque, New Mexico 87185, USA., Peterson KJ; Sandia National Laboratories, Albuquerque, New Mexico 87185, USA., Yates KC; Sandia National Laboratories, Albuquerque, New Mexico 87185, USA.; Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA., Hutchinson TM; Lawrence Livermore National Laboratory, Livermore, California 94550, USA., Hatch MW; University of New Mexico, Albuquerque, New Mexico 87131, USA., Bauer BS; University of Nevada, Reno, Reno, Nevada 89506, USA., Tomlinson K; General Atomics, San Diego, California 92121, USA., Sinars DB; Sandia National Laboratories, Albuquerque, New Mexico 87185, USA. |
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| Jazyk: | angličtina |
| Zdroj: | Physical review letters [Phys Rev Lett] 2023 Jun 23; Vol. 130 (25), pp. 255101. |
| DOI: | 10.1103/PhysRevLett.130.255101 |
| Abstrakt: | Electrothermal instability plays an important role in applications of current-driven metal, creating striations (which seed the magneto-Rayleigh-Taylor instability) and filaments (which provide a more rapid path to plasma formation). However, the initial formation of both structures is not well understood. Simulations show for the first time how a commonly occurring isolated defect transforms into the larger striation and filament, through a feedback loop connecting current and electrical conductivity. Simulations have been experimentally validated using defect-driven self-emission patterns. |
| Databáze: | MEDLINE |
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