TurboPy: A lightweight python framework for computational physics

Richardson, A. S.; Gordon, D.; Swanekamp, S. B.; Rittersdorf, I. M.; Adamson, P.; Grannis, O.S.; Morgan, G.; Ostenfeld, A.; Phlips, K.L.; Sun, Chao; Tang, Gong Li; Watkins, D. J.

doi:10.1016/j.cpc.2020.107607

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…25,26 This framework manages boilerplate aspects of the code such as le I/O and problem con guration, while also providing basic computational physics functionality such as de ning the main simulation loop, a clock, and a grid. 27 For this rigid-beam problem, we have created custom turboPy PhysicsModules which solve the electric eld equation, the rate equations, and the electron uid equations. Additional PhysicsModules read in tabulated rate coe cients and perform the rate table lookups, while others calculate the stopping power and beam-impact ionization and excitation rates.…”

Section: A Custom Turbopy Modules For the Rigid-beam Modelmentioning

confidence: 99%

Modeling Intense-Electron-Beam Generated Plasmas Using a Rigid-Beam Approximation

Richardson,

Swanekamp,

Isner

et al. 2021

Preprint

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A model of an electron-beam-plasma system is introduced to model the electrical breakdown physics of low-pressure nitrogen irradiated by an intense pulsed electron beam. The rapidly rising beam current induces an electric eld which drives a return current in the plasma. The rigid-beam model is a reduction of the problem geometry to cylindrical coordinates and simpli cations to Maxwell's equations that are driven by a prescribed electron beam current density. The model is convenient for comparing various reductions of the plasma dynamics and plasma chemistry while maintaining a good approximation to the overall magnitude of the beam-created electric eld. The usefulness of this model is demonstrated by coupling the rigid-beam model to a uid plasma model and a simpli ed nitrogen plasma chemistry. The dynamics of this coupled system are computed for a range of background gas pressures, and the results are compared with experimental measurements. At pressures 1 Torr and above, the simulated line-integrated electron densities are within a factor of two of measurements, and show the same trend with pressure as observed in experiment.

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Section: A Custom Turbopy Modules For the Rigid-beam Modelmentioning

confidence: 99%

Modeling Intense-Electron-Beam Generated Plasmas Using a Rigid-Beam Approximation

Richardson,

Swanekamp,

Isner

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

Modeling intense-electron-beam generated plasmas using a rigid-beam approximation

et al. 2021

View full text Add to dashboard Cite

A model of an electron-beam–plasma system is introduced to model the electrical breakdown physics of low-pressure nitrogen irradiated by an intense pulsed electron beam. The rapidly rising beam current induces an electric field, which drives a return current in the plasma. The rigid-beam model is a reduction of the problem geometry to cylindrical coordinates and simplifications to Maxwell's equations that are driven by a prescribed electron beam current density. The model is convenient for comparing various reductions of the plasma dynamics and plasma chemistry while maintaining a good approximation to the overall magnitude of the beam-created electric field. The usefulness of this model is demonstrated by coupling the rigid-beam model to a fluid plasma model and a simplified nitrogen plasma chemistry. The dynamics of this coupled system are computed for a range of background gas pressures, and the results are compared with experimental measurements. At pressures 1 Torr and above, the simulated line-integrated electron densities are within a factor of two of measurements and show the same trend with pressure as observed in experiment.

show abstract

TurboPy: A lightweight python framework for computational physics

Cited by 2 publications

References 3 publications

Modeling Intense-Electron-Beam Generated Plasmas Using a Rigid-Beam Approximation

Modeling Intense-Electron-Beam Generated Plasmas Using a Rigid-Beam Approximation

Modeling intense-electron-beam generated plasmas using a rigid-beam approximation

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