Exploring Ways to Improve Predictive Capability of Z-Pinch Calculations

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For some time 2-dimensional RMHD (radiation magneto-hydrodynamic) calculations of radiating z-pinches have been made to agree with integral data (current wave form, yield and power). For these calculations, the agreement with detailed data, such as time-resolved x-ray images, is generally not as good. Correctly modeling the physics of z-pinches, including detailed data, is needed to have true predictive capability. To address this problem, the authors first determine which integral data are most sensitive to the details in the models. With this information, they investigate aspects of the pinch, to which the data is sensitive, using non-standard techniques. For example, the ... continued below

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Matuska, W.; Aubrey, J.; Bowers, R.; Lee, H.; Peterson, D.; Deeney, C. et al. October 19, 1998.

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For some time 2-dimensional RMHD (radiation magneto-hydrodynamic) calculations of radiating z-pinches have been made to agree with integral data (current wave form, yield and power). For these calculations, the agreement with detailed data, such as time-resolved x-ray images, is generally not as good. Correctly modeling the physics of z-pinches, including detailed data, is needed to have true predictive capability. To address this problem, the authors first determine which integral data are most sensitive to the details in the models. With this information, they investigate aspects of the pinch, to which the data is sensitive, using non-standard techniques. For example, the pinch is calculated in (x,y)-geometry to investigate how a non-symmetric implosion affects the simulated data.

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INIS; OSTI as DE00759421

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  • Megagauss Conference, Tallahassee, FL (US), 10/19/1998--10/23/1998

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  • Report No.: LA-UR-98-4584
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 759421
  • Archival Resource Key: ark:/67531/metadc702341

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  • October 19, 1998

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  • Sept. 12, 2015, 6:31 a.m.

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  • May 6, 2016, 2:28 p.m.

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Matuska, W.; Aubrey, J.; Bowers, R.; Lee, H.; Peterson, D.; Deeney, C. et al. Exploring Ways to Improve Predictive Capability of Z-Pinch Calculations, article, October 19, 1998; New Mexico. (digital.library.unt.edu/ark:/67531/metadc702341/: accessed December 10, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.