Magnetohydrodynamic simulation study of plasma jets and plasma-surface contact in coaxial plasma accelerators
Abstract
Recent experiments by Loebner et al. [IEEE Trans. Plasma Sci. 44, 1534 (2016)] studied the effect of a hypervelocity jet emanating from a coaxial plasma accelerator incident on target surfaces in an effort to mimic the transient loading created during edge localized mode disruption events in fusion plasmas. In this study, we present a magnetohydrodynamic (MHD) numerical model to simulate plasma jet formation and plasma-surface contact in this coaxial plasma accelerator experiment. The MHD system of equations is spatially discretized using a cell-centered finite volume formulation. The temporal discretization is performed using a fully implicit backward Euler scheme and the resultant stiff system of nonlinear equations is solved using the Newton method. The numerical model is employed to obtain some key insights into the physical processes responsible for the generation of extreme stagnation conditions on the target surfaces. Simulations of the plume (without the target plate) are performed to isolate and study phenomena such as the magnetic pinch effect that is responsible for launching pressure pulses into the jet free stream. The simulations also yield insights into the incipient conditions responsible for producing the pinch, such as the formation of conductive channels. The jet-target impact studies indicate the existence ofmore »
- Authors:
-
- Univ. of Texas, Austin, TX (United States). Dept. of Aerospace Engineering and Engineering Mechanics
- Publication Date:
- Research Org.:
- Stanford Univ., CA (United States); Univ. of Texas, Austin, TX (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1485499
- Alternate Identifier(s):
- OSTI ID: 1363706; OSTI ID: 1363884
- Grant/Contract Number:
- NA0002011
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physics of Plasmas
- Additional Journal Information:
- Journal Volume: 24; Journal Issue: 6; Journal ID: ISSN 1070-664X
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; Magnetohydrodynamics; Magnetic fields; Electrodes; Plasma temperature; Plasma jets
Citation Formats
Subramaniam, Vivek, and Raja, Laxminarayan L. Magnetohydrodynamic simulation study of plasma jets and plasma-surface contact in coaxial plasma accelerators. United States: N. p., 2017.
Web. doi:10.1063/1.4985320.
Subramaniam, Vivek, & Raja, Laxminarayan L. Magnetohydrodynamic simulation study of plasma jets and plasma-surface contact in coaxial plasma accelerators. United States. https://doi.org/10.1063/1.4985320
Subramaniam, Vivek, and Raja, Laxminarayan L. Tue .
"Magnetohydrodynamic simulation study of plasma jets and plasma-surface contact in coaxial plasma accelerators". United States. https://doi.org/10.1063/1.4985320. https://www.osti.gov/servlets/purl/1485499.
@article{osti_1485499,
title = {Magnetohydrodynamic simulation study of plasma jets and plasma-surface contact in coaxial plasma accelerators},
author = {Subramaniam, Vivek and Raja, Laxminarayan L.},
abstractNote = {Recent experiments by Loebner et al. [IEEE Trans. Plasma Sci. 44, 1534 (2016)] studied the effect of a hypervelocity jet emanating from a coaxial plasma accelerator incident on target surfaces in an effort to mimic the transient loading created during edge localized mode disruption events in fusion plasmas. In this study, we present a magnetohydrodynamic (MHD) numerical model to simulate plasma jet formation and plasma-surface contact in this coaxial plasma accelerator experiment. The MHD system of equations is spatially discretized using a cell-centered finite volume formulation. The temporal discretization is performed using a fully implicit backward Euler scheme and the resultant stiff system of nonlinear equations is solved using the Newton method. The numerical model is employed to obtain some key insights into the physical processes responsible for the generation of extreme stagnation conditions on the target surfaces. Simulations of the plume (without the target plate) are performed to isolate and study phenomena such as the magnetic pinch effect that is responsible for launching pressure pulses into the jet free stream. The simulations also yield insights into the incipient conditions responsible for producing the pinch, such as the formation of conductive channels. The jet-target impact studies indicate the existence of two distinct stages involved in the plasma-surface interaction. A fast transient stage characterized by a thin normal shock transitions into a pseudo-steady stage that exhibits an extended oblique shock structure. A quadratic scaling of the pinch and stagnation conditions with the total current discharged between the electrodes is in qualitative agreement with the results obtained in the experiments. Finally, this also illustrates the dominant contribution of the magnetic pressure term in determining the magnitude of the quantities of interest.},
doi = {10.1063/1.4985320},
journal = {Physics of Plasmas},
number = 6,
volume = 24,
place = {United States},
year = {Tue Jun 13 00:00:00 EDT 2017},
month = {Tue Jun 13 00:00:00 EDT 2017}
}
Web of Science
Figures / Tables:
Works referenced in this record:
Compact toroid formation, compression, and acceleration
journal, August 1993
- Degnan, J. H.; Peterkin, R. E.; Baca, G. P.
- Physics of Fluids B: Plasma Physics, Vol. 5, Issue 8
Plasma deflagration and the properties of a coaxial plasma deflagration gun
journal, September 1970
- Cheng, Dah Yu
- Nuclear Fusion, Vol. 10, Issue 3
Recent research in magneto-aerodynamics
journal, January 2001
- Shang, J. S.
- Progress in Aerospace Sciences, Vol. 37, Issue 1
Current distribution measurements inside an electromagnetic plasma gun operated in a gas-puff mode
journal, December 2010
- Poehlmann, Flavio R.; Cappelli, Mark A.; Rieker, Gregory B.
- Physics of Plasmas, Vol. 17, Issue 12
Magneto-hydrodynamics simulation study of deflagration mode in co-axial plasma accelerators
journal, January 2014
- Sitaraman, Hariswaran; Raja, Laxminarayan L.
- Physics of Plasmas, Vol. 21, Issue 1
Hyperbolic Divergence Cleaning for the MHD Equations
journal, January 2002
- Dedner, A.; Kemm, F.; Kröner, D.
- Journal of Computational Physics, Vol. 175, Issue 2
Magnetic nozzle design for coaxial plasma accelerators
journal, June 1995
- Hoyt, R. P.; Scheuer, J. T.; Schoenberg, K. F.
- IEEE Transactions on Plasma Science, Vol. 23, Issue 3
A matrix free implicit scheme for solution of resistive magneto-hydrodynamics equations on unstructured grids
journal, October 2013
- Sitaraman, H.; Raja, L. L.
- Journal of Computational Physics, Vol. 251
Global simulation of the solar wind-magnetosphere interaction: The importance of its numerical validity
journal, January 1990
- Watanabe, K.; Sato, T.
- Journal of Geophysical Research, Vol. 95, Issue A1
Sheared Flow Stabilization of the Kink Mode in Pinches
journal, October 1995
- Shumlak, U.; Hartman, C. W.
- Physical Review Letters, Vol. 75, Issue 18
Radial magnetic compression in the expelled jet of a plasma deflagration accelerator
journal, February 2016
- Loebner, Keith T. K.; Underwood, Thomas C.; Mouratidis, Theodore
- Applied Physics Letters, Vol. 108, Issue 9
Performance of a Hydromagnetic Plasma Gun
journal, January 1960
- Marshall, John
- Physics of Fluids, Vol. 3, Issue 1
Evidence of Stabilization in the -Pinch
journal, October 2001
- Shumlak, U.; Golingo, R. P.; Nelson, B. A.
- Physical Review Letters, Vol. 87, Issue 20
Accurate and Efficient Discretization of Navier-Stokes Equations on Mixed Grids
journal, November 2000
- Haselbacher, Andreas; Blazek, Jiri
- AIAA Journal, Vol. 38, Issue 11
Simplified Second-Order Godunov-Type Methods
journal, May 1988
- Davis, S. F.
- SIAM Journal on Scientific and Statistical Computing, Vol. 9, Issue 3
On Godunov-type methods near low densities
journal, February 1991
- Einfeldt, B.; Munz, C. D.; Roe, P. L.
- Journal of Computational Physics, Vol. 92, Issue 2
Transport Phenomena in a Completely Ionized Gas
journal, March 1953
- Spitzer, Lyman; Härm, Richard
- Physical Review, Vol. 89, Issue 5
A flux-limited numerical method for solving the MHD equations to simulate propulsive plasma flows
journal, January 2001
- Sankaran, K.; Martinelli, L.; Jardin, S. C.
- International Journal for Numerical Methods in Engineering, Vol. 53, Issue 6
Observation of current sheath transition from snowplow to deflagration
journal, February 1985
- Woodall, D. M.; Len, L. K.
- Journal of Applied Physics, Vol. 57, Issue 3
Applied-Field Magnetoplasmadynamic Thrusters, Part 1: Numerical Simulations Using the MACH2 Code
journal, September 2000
- Mikellides, Pavlos G.; Turchi, Peter J.; Roderick, Norman F.
- Journal of Propulsion and Power, Vol. 16, Issue 5
Sheared flow stabilization experiments in the ZaP flow Z pinch
journal, May 2003
- Shumlak, U.; Nelson, B. A.; Golingo, R. P.
- Physics of Plasmas, Vol. 10, Issue 5
Introduction to Plasma Physics
journal, January 1996
- Wesson, J. A.
- Plasma Physics and Controlled Fusion, Vol. 38, Issue 1
Magneto-hydrodynamics simulation study of deflagration mode in co-axial plasma accelerators
conference, January 2013
- Sitaraman, Hariswaran; Raja, Laxminarayan
- 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
Introduction to Plasma Physics
journal, October 1976
- Chen, F. F.; Trivelpiece, A. W.
- Physics Today, Vol. 29, Issue 10
Evidence of Stabilization in the Z-Pinch
text, January 2001
- Den Hartog, D. J.; Golingo, R. P.; Nelson, B. A.
- The American Physical Society
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Optical emission spectroscopy investigation of the current sheet in a small-bore parallel-plate electromagnetic plasma accelerator
journal, November 2018
- Liu, Shuai; Huang, Yizhi; Zhang, Yongpeng
- Physics of Plasmas, Vol. 25, Issue 11
Modeling of thermalization phenomena in coaxial plasma accelerators
journal, April 2018
- Subramaniam, Vivek; Panneerchelvam, Premkumar; Raja, Laxminarayan L.
- Journal of Physics D: Applied Physics, Vol. 51, Issue 21
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journal, December 2018
- Sharma, Ashish; Subramaniam, Vivek; Solmaz, Evrim
- Journal of Physics D: Applied Physics, Vol. 52, Issue 9
Computational and experimental investigation of plasma deflagration jets and detonation shocks in coaxial plasma accelerators
journal, February 2018
- Subramaniam, Vivek; Underwood, Thomas C.; Raja, Laxminarayan L.
- Plasma Sources Science and Technology, Vol. 27, Issue 2
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