The Role of Low Frequency Drift Waves in Driving non-classical Transport in Magnetic Nozzles

Hepner, Shadrach; Jorns, Benjamin

doi:10.2514/6.2020-3644

Cited by 2 publications

(1 citation statement)

References 15 publications

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“…Turbulence is believed to be the main source of anomalous transport in Hall thrusters, and this model (which results in a net enhancement of the electron transport perpendicular to the magnetic field) has been used successfully in the past to explain experimental measurements [52,53]. Evidence of turbulence on electrodeless plasma thrusters like the ECRT is still very limited, but existing results [54] indicate that it is a pervasive element of these devices (and HPTs) as well. As the ECRT also features an E × B plasma like Hall thrusters, the same model is used here to introduce the effect of turbulent transport in the simulation.…”

Section: The E-modulementioning

confidence: 99%

Coupled plasma transport and electromagnetic wave simulation of an ECR thruster

Sanchez-Villar

Zhou

Ahedo

et al. 2021

Plasma Sources Sci. Technol.

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An electron-cyclotron resonance thruster (ECRT) prototype is simulated numerically, using two coupled models: a hybrid particle-in-cell/fluid model for the integration of the plasma transport and a frequency-domain full-wave finite-element model for the computation of the fast electromagnetic (EM) fields. The quasi-stationary plasma response, fast EM fields, power deposition, particle and energy fluxes to the walls, and thruster performance figures at the nominal operating point are discussed, showing good agreement with the available experimental data. The ECRT plasma discharge contains multiple EM field propagation/evanescence regimes that depend on the plasma density and applied magnetic field that determine the flow and absorption of power in the device. The power absorption is found to be mainly driven by radial fast electric fields at the electron-cyclotron resonance region, and specifically close to the inner rod. Large cross-field electron temperature gradients are observed, with maxima close to the inner rod. This, in turn, results in large localized particle and energy fluxes to this component.

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Section: The E-modulementioning

confidence: 99%