One-and-Two-Dimensional Simulations of Liner Performance at Atlas Parameters

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The authors report results of one-and-two-dimensional MHD simulations of an imploding heavy liner in Z-pinch geometry. The driving current has a pulse shape and peak current characteristic of the Atlas pulsed-power facility being constructed at Los Alamos National Laboratory. One-dimensional simulations of heavy composite liners driven by 30 MA currents can achieve velocities on the order of 14 km/sec. Used to impact a tungsten target, the liner produces shock pressures of approximately fourteen megabars. The first 2-D simulations of imploding liners driven at Atlas current parameters are also described. These simulations have focused on the interaction of the liner with ... continued below

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Keinigs, R.K.; Atchison, W.L.; Faehl, R.J.; Mclenithan, K.D. & Trainor, R.J. October 18, 1998.

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The authors report results of one-and-two-dimensional MHD simulations of an imploding heavy liner in Z-pinch geometry. The driving current has a pulse shape and peak current characteristic of the Atlas pulsed-power facility being constructed at Los Alamos National Laboratory. One-dimensional simulations of heavy composite liners driven by 30 MA currents can achieve velocities on the order of 14 km/sec. Used to impact a tungsten target, the liner produces shock pressures of approximately fourteen megabars. The first 2-D simulations of imploding liners driven at Atlas current parameters are also described. These simulations have focused on the interaction of the liner with the glide planes, and the effect of realistic surface perturbations on the dynamics of the pinch. It is found that the former interaction does not seriously affect the inner liner surface. Results from the second problem indicate that a surface perturbation having amplitude as small as 0.2 {micro}m can have a significant effect on the implosion dynamics.

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Medium: P; Size: vp.

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INIS; OSTI as DE00760121

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  • VIIh International Conference on Megagauss Magnetic Field Generation and Related Topics, Tallahassee, FL (US), 10/18/1998--10/23/1998

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  • Report No.: LA-UR-98-4102
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 760121
  • Archival Resource Key: ark:/67531/metadc718067

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  • October 18, 1998

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  • Sept. 29, 2015, 5:31 a.m.

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  • May 6, 2016, 1:48 p.m.

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Keinigs, R.K.; Atchison, W.L.; Faehl, R.J.; Mclenithan, K.D. & Trainor, R.J. One-and-Two-Dimensional Simulations of Liner Performance at Atlas Parameters, article, October 18, 1998; New Mexico. (digital.library.unt.edu/ark:/67531/metadc718067/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.