Particle-In-Cell Simulation of Heavy Species in Hall Effect Discharge

Petronelli, Antonio; Panelli, Mario; Battista, Francesco

doi:10.1007/s42496-022-00116-7

Cited by 3 publications

(2 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The modifications regarding the PIC module were mainly described in Ref. [22], where the possibility to correctly simulate the plasma discharge of an HET with eroded channels was verified, too. Here, the only additional improvement regarding the wall weighting, that is the calculation of plasma density at the wall, is highlighted.…”

Section: Plasma Simulation: Hypicflu2mentioning

confidence: 99%

“…The same numerical settings and grids presented in Refs. [22,27] were used for the calculation reported here. Figure 6 reports the time-averaged plasma properties along the channel centerline (i.e., the line through the middle of the channel; radial position = 42.5 mm), namely, axial ion velocity, neutral and plasma density, ionization rate, electron temperature, and plasma potential.…”

Section: Hypicflu2 Validationmentioning

confidence: 99%

See 1 more Smart Citation

Numerical Modeling of Erosion in Hall Effect Thrusters

Passet,

Panelli,

Battista

2024

Particles

Self Cite

View full text Add to dashboard Cite

The erosion of the accelerating chamber walls is one of the main factors limiting the operational life of Hall effect thrusters (HETs), and it is mainly related to the sputtering of ceramic walls due to the impacting energetic ion particles. The erosion phenomenon is investigated by means of a numerical model that couples the plasma model HYPICFLU2, used for evaluating the local distributions of ion energies and incidence angles, and a sputtering model specific for the xenon–Borosil pair, which is the most used in HETs application. The sputtering yield model is based on the measurements by Ranjan et al. that are improved with a linear factor to include wall temperature effect, recently studied by Parida et al. The experimental eroded profiles of SPT100 walls are selected as benchmark. The results show that there is a decrease in erosion speed with time, in accordance with experimental measurements, but the model underestimates, by about 50–60%, the erosion at the channel exit, which suggests a stronger dependence of sputter yield on surface temperature. Thus, the need for new experimental measurements of sputtering in the range of impact energy, angle, and wall temperature, respectively, of 10–250 eV, 0–85°, 30–600 °C, arises.

show abstract

Section: Plasma Simulation: Hypicflu2mentioning

confidence: 99%

Section: Hypicflu2 Validationmentioning

confidence: 99%

Numerical Modeling of Erosion in Hall Effect Thrusters

Passet,

Panelli,

Battista

2024

Particles

Self Cite

View full text Add to dashboard Cite

show abstract

Scaling of Magnetic Circuit for Magnetically Shielded Hall Effect Thrusters

Lopedote

Panelli

Battista

2023

Aerotec. Missili Spaz.

View full text Add to dashboard Cite

Two-dimensional particle-in-cell simulation of electron heating effect in multiple hollow cathode trenches with curved boundary

Park

Sakiyama²,

Lee³

2023

Front. Phys.

View full text Add to dashboard Cite

A particle-in-cell simulation is suitable for simulating capacitively coupled plasma devices because it calculates the trajectory of particles with arbitrary energy distributions and has the advantage of analyzing sheath dynamics precisely. Implementing the ghost grid method in the Poisson solver makes it possible to simulate a curved structure in the structured grids. The electron transport and heating mechanism are determined according to the two-dimensional (2D) sheath dynamics. The hollow cathode effect on electron transport was analyzed by varying the hole shape and gas pressure. The spatial distributions of electron density and temperature are influenced by the energy relaxation length of electrons, which is affected by the energy distribution function and gas pressure. As a result, a new electron heating mode appears in the 2D structure.

show abstract

Particle-In-Cell Simulation of Heavy Species in Hall Effect Discharge

Cited by 3 publications

References 15 publications

Numerical Modeling of Erosion in Hall Effect Thrusters

Numerical Modeling of Erosion in Hall Effect Thrusters

Scaling of Magnetic Circuit for Magnetically Shielded Hall Effect Thrusters

Two-dimensional particle-in-cell simulation of electron heating effect in multiple hollow cathode trenches with curved boundary

Contact Info

Product

Resources

About