Modeling high-Mach-number rarefied crossflows past a flat plate using the maximum-entropy moment method

S Boccelli, P Parodi, TE Magin, JG McDonald - Physics of Fluids, 2023 - pubs.aip.org
The 10 and 14-moment maximum-entropy methods are applied to the study of high-Mach-
number non-reacting crossflows past a flat plate at large degrees of rarefaction. The moment …

Inertial and anisotropic pressure effects on cross-field electron transport in low-temperature magnetized plasmas

Y Yamashita, R Lau, K Hara - Journal of Physics D: Applied …, 2023 - iopscience.iop.org
In this paper, a one-dimensional (1D) particle-in-cell Monte Carlo collision (PIC-MCC) model
is developed to investigate the effects of anisotropic pressure and inertial terms due to non …

A gallery of maximum-entropy distributions: 14 and 21 moments

S Boccelli, F Giroux, JG McDonald - Journal of Statistical Physics, 2024 - Springer
This work explores the different shapes that can be realized by the one-particle velocity
distribution functions (VDFs) associated with the fourth-order maximum-entropy moment …

Electron inertial effects in the rarefied regime of a direct-current (DC) breakdown

AR Mansour, L Vialetto, Y Yamashita… - … Sources Science and …, 2024 - iopscience.iop.org
A multi-fluid moment model, a drift-diffusion (DD) model, and a particle-in-cell/Monte Carlo
collision (PIC-MCC) model are compared to investigate direct-current breakdown …

Numerical simulation of rarefied supersonic flows using a fourth-order maximum-entropy moment method with interpolative closure

S Boccelli, W Kaufmann, TE Magin… - Journal of Computational …, 2024 - Elsevier
Maximum-entropy moment methods allow for the modeling of gases from the continuum
regime to strongly rarefied conditions. The development of approximated solutions to the …

Full fluid moment modeling of rotating spokes in Penning-type configuration

AR Mansour, K Hara - Plasma Sources Science and Technology, 2022 - iopscience.iop.org
Rotating spokes are observed in a partially magnetized plasma using a two-dimensional full
fluid moment (FFM) model. In the present setup, where the radial electric field and plasma …

14-moment maximum-entropy modeling of collisionless ions for Hall thruster discharges

S Boccelli, JG McDonald, TE Magin - Physics of Plasmas, 2022 - pubs.aip.org
Ions in Hall effect thrusters are often characterized by a low collisionality. In the presence of
acceleration fields and azimuthal electric field waves, this results in strong deviations from …

Numerical investigation of reversed gas-feed configurations for Hall thrusters

S Boccelli, TE Magin, A Frezzotti - Journal of Propulsion and Power, 2021 - arc.aiaa.org
A reversed gas-feed configuration for Hall thrusters is proposed and studied numerically. As
an alternative to standard direct injection, we investigate the effect of injecting the propellant …

Current status of development and application of main types of electric propulsion

AS Lovtsov, DA Kravchenko, DA Tomilin… - Plasma Physics …, 2022 - Springer
The modern application of electric propulsion is analyzed. It is concluded that Hall and ion
thrusters, which are based on the generation of low-temperature plasma, are most widely …

Ten-moment fluid model with heat flux closure for gasdynamic flows

DA Kuldinow, Y Yamashita, AR Mansour… - Journal of Computational …, 2024 - Elsevier
The gasdynamic 10-moment equations are revisited, applying a Chapman-Enskog type
expansion to achieve the closure for heat flux. The resulting gradient-based closure …