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Title: 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:
 [1]; ORCiD logo [2]
  1. Princeton Univ., NJ (United States)
  2. 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}
}

Journal Article:

Citation Metrics:
Cited by: 15 works
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Works referenced in this record:

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Works referencing / citing this record:

Bulk hydrodynamic stability and turbulent saturation in compressing hot spots
journal, April 2018


Understanding turbulence in compressing plasma as a quasi-EOS
journal, June 2019


Viscous dissipation in two-dimensional compression of turbulence
journal, August 2019