60 citations · 139 across the 10 of their papers we have counts for
10 papers
Wall Ion Loss Reduction by Acceleration Zone Shifting in Anode-Layer Hall Thruster
Rei Kawashima, Yushi Hamada, Shu Kawabata +2
In this study, wall ion loss and erosion rate are evaluated in the RAIJIN thruster. The novelty of this work is the detailed analysis of measured guard-ring (metallic channel wall)…
Evolution of electron cross-field transport induced by an equilibrium azimuthal electric field in an Hall thruster discharge under an azimuthally inhomogeneous neutral supply
Junhwi Bak, Rei Kawashima, Jacob Simmonds +1
The electron cross-field transport by the induced azimuthal electric field in a Hall thruster exhibits the mobility scaled by . This study investigates parameters affecting th…
Two-dimensional hybrid model of gradient drift instability and enhanced electron transport in a Hall thruster
Rei Kawashima, Kimiya Komurasaki
An axial-azimuthal two-dimensional Hall thruster discharge model was developed for analyzing gradient drift instability (GDI) and cross-field electron transport enhancement induced…
High-order upwind and non-oscillatory approach for steady state diffusion, advection-diffusion and application to magnetized electrons
Amareshwara Sainadh Chamarthi, Kimiya Komurasaki, Rei Kawashima
Steady state simulations} of magnetized electron fluid equations with strong anisotropic diffusion based on the first-order hyperbolic approach is carried out using cell-centered h…
Two-dimensional Modeling of the Hall Thruster Discharge with Non-uniform Propellant Supply in Azimuth
Rei Kawashima, Junhwi Bak, Kimiya Komurasaki +1
A two-dimensional simulation is conducted to investigate the effect of cross-field electron transport enhancement in the Hall thruster discharge caused by the nonuniform propellant…
Particle Simulation of Plasma Drag Force Generation in the Magnetic Plasma Deorbit
Rei Kawashima, Junhwi Bak, Shinji Matsuzawa +1
The magnetic plasma deorbit method has been proposed for micro and nanosatellites in the low earth orbit (LEO). The magnetic plasma deorbit utilizes the plasma drag force generated…
A flux-splitting method for hyperbolic-equation system of magnetized electron fluids in quasi-neutral plasmas
R. Kawashima, K. Komurasaki, T. Schoenherr
A flux-splitting method is proposed for the hyperbolic-equation system (HES) of magnetized electron fluids in quasi-neutral plasmas. The numerical fluxes are split into four catego…
A hyperbolic-equation system approach for magnetized electron fluids in quasi-neutral plasmas
R. Kawashima, K. Komurasaki, T. Schoenherr
A new approach using a hyperbolic-equation system (HES) is proposed to solve for the electron fluids in quasi-neutral plasmas. The HES approach avoids treatments of cross-diffusion…
A Quasi-one-dimensional Analytic Model of Rotating Detonation Combustors
R. Kawashima, I. Funaki, J. Fujii +3
A quasi-one-dimensional analytic model is proposed for the internal fluid of rotating detonation combustors (RDCs). This model uses the shock-tube model that constrains the flow to…
Numerical analysis of azimuthal rotating spokes in a crossed-field discharge plasma
R. Kawashima, K. Hara, K. Komurasaki
Low-frequency rotating spokes are obtained in a cross-field discharge plasma using two-dimensional numerical simulations. A particle-fluid hybrid model is used to model the plasma…