Transport of Magnetic Flux in an Arbitrary Coordinate ALE Code

Peterkin, R.E.; Fresé, Michael; Sovinec, C. R.

doi:10.1006/jcph.1998.5880

Cited by 130 publications

(65 citation statements)

References 11 publications

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“…The implosion dynamics are simulated with MACH2, which is a single-fluid, magneto-hydrodynamic, 2-1/2 dimensional, time-dependent code, that treats the electron, ion, and radiation temperatures separately and calculates resistive and thermal diffusion using established transport models [21]. The plasma equationof-state is determined from SESAME look-up tables (http://t1web.lanl.…”

Section: Simulationsmentioning

confidence: 99%

Instability Control in a Staged Z-pinch

Wessel¹

2011

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Section: Simulationsmentioning

confidence: 99%

Instability Control in a Staged Z-pinch

Wessel¹

2011

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“…A series of MACH2 [23] simulations were conducted to improve the understanding of the potential for quasi-spherical direct drive (QSDD) fusion on ZR and future machines. These simulations included zoning-resolution studies of the wall perturbation seen in earlier QSDD simulations [24] at high current.…”

Section: Two Dimensional Simulations Of Low Adiabat Qsdd2 Capsulesmentioning

confidence: 99%

Quasi-spherical direct drive fusion.

VanDevender¹,

Abbott²,

Langston³

et al. 2007

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We present designs of quasi-spherical direct drive z-pinch loads for machines such as ZR at 28 MA load current with a 150 ns implosion time (QSDD1). A double shell system for ZR has produced a 2D simulated yield of 12 MJ, but the drive for this system on ZR has essentially no margin. A double shell system for a 56 MA driver at 150 ns implosion has produced a simulated yield of 130 MJ with considerable margin in attaining the necessary temperature and density-radius product for ignition. We also present designs for a magnetically insulated current amplifier, (MICA), that modify the attainable ZR load current to 36 MA with a 28 ns rise time. The faster pulse provided by a MICA makes it possible to drive quasispherical single shell implosions (QSDD2). We will present results from 1D LASNEX and 2D MACH2 simulations of promising low-adiabat cryogenic QSDD2 capsules and 1D LASNEX results of high-adiabat cryogenic QSDD2 capsules. 4 5

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“…is the hohlraum temperature when the shock arrives at the capsule, since the average shock velocity is approximately (17) where~= 1.63 for a cylindrical pinch and~= 1.93 for a quasi-spherical pinch.…”

Section: Geometric Considerations: Radiation Symmetry and Standoffmentioning

confidence: 99%

Scaling and optimization of the radiation temperature in dynamic hohlraums

et al. 2001

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We have constructed a quasi-analytic model of the dynamic hohlraum. Solutions only require a numerical root solve, which can be done very quickly. Results of the model are compared to both experiments and full numerical simulations with good agreement. The computational simplicity of the model allows one to find the behavior of the hohlraum temperature as a function the various parameters of the system and thus find optimum parameters as a function of the driving current. The model is used to investigate the benefits of ablative standoff and axial convergence.

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Transport of Magnetic Flux in an Arbitrary Coordinate ALE Code

Cited by 130 publications

References 11 publications

Instability Control in a Staged Z-pinch

Instability Control in a Staged Z-pinch

Quasi-spherical direct drive fusion.

Scaling and optimization of the radiation temperature in dynamic hohlraums

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