Compressing turbulence and sudden viscous dissipation with compression-dependent ionization state
Abstract
Turbulent plasma flow, amplified by rapid three-dimensional compression, can be suddenly dissipated under continuing compression. Furthermore, this effect relies on the sensitivity of the plasma viscosity to the temperature, μ ~ T 5 / 2 . The plasma viscosity is also sensitive to the plasma ionization state. Here, we show that the sudden dissipation phenomenon may be prevented when the plasma ionization state increases during compression, and we demonstrate the regime of net viscosity dependence on compression where sudden dissipation is guaranteed. In addition, it is shown that, compared to cases with no ionization, ionization during compression is associated with larger increases in turbulent energy and can make the difference between growing and decreasing turbulent energy.
- Authors:
-
- Princeton Univ., NJ (United States)
- Princeton Univ., NJ (United States); Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- Publication Date:
- Research Org.:
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1336241
- Alternate Identifier(s):
- OSTI ID: 1332027
- Grant/Contract Number:
- AC02-09CH1-1466; NA0001836; NNSA 67350-9960; HDTRA1-11-1-0037; PHY-1506122
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Physical Review E
- Additional Journal Information:
- Journal Volume: 94; Journal Issue: 5; Journal ID: ISSN 2470-0045
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Citation Formats
Davidovits, Seth, and Fisch, Nathaniel J. Compressing turbulence and sudden viscous dissipation with compression-dependent ionization state. United States: N. p., 2016.
Web. doi:10.1103/PhysRevE.94.053206.
Davidovits, Seth, & Fisch, Nathaniel J. Compressing turbulence and sudden viscous dissipation with compression-dependent ionization state. United States. https://doi.org/10.1103/PhysRevE.94.053206
Davidovits, Seth, and Fisch, Nathaniel J. 2016.
"Compressing turbulence and sudden viscous dissipation with compression-dependent ionization state". United States. https://doi.org/10.1103/PhysRevE.94.053206. https://www.osti.gov/servlets/purl/1336241.
@article{osti_1336241,
title = {Compressing turbulence and sudden viscous dissipation with compression-dependent ionization state},
author = {Davidovits, Seth and Fisch, Nathaniel J.},
abstractNote = {Turbulent plasma flow, amplified by rapid three-dimensional compression, can be suddenly dissipated under continuing compression. Furthermore, this effect relies on the sensitivity of the plasma viscosity to the temperature, μ ~ T 5 / 2 . The plasma viscosity is also sensitive to the plasma ionization state. Here, we show that the sudden dissipation phenomenon may be prevented when the plasma ionization state increases during compression, and we demonstrate the regime of net viscosity dependence on compression where sudden dissipation is guaranteed. In addition, it is shown that, compared to cases with no ionization, ionization during compression is associated with larger increases in turbulent energy and can make the difference between growing and decreasing turbulent energy.},
doi = {10.1103/PhysRevE.94.053206},
url = {https://www.osti.gov/biblio/1336241},
journal = {Physical Review E},
issn = {2470-0045},
number = 5,
volume = 94,
place = {United States},
year = {Mon Nov 14 00:00:00 EST 2016},
month = {Mon Nov 14 00:00:00 EST 2016}
}
Web of Science
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Works referencing / citing this record:
Bulk hydrodynamic stability and turbulent saturation in compressing hot spots
journal, April 2018
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Understanding turbulence in compressing plasma as a quasi-EOS
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