Zobrazeno 1 - 10
of 33
pro vyhledávání: '"I S, Roy"'
Publikováno v:
Journal of Computational Physics. 128:6-18
A fully three-dimensional hybrid plasma particle-in-cell model for multi-computer environments was developed to assess the spacecraft backflow contamination of an ion thruster. Results of plume backflow are presented for a 13-cm xenon ion thruster op
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4e329017d3dd391b2291233d9ceab62
https://doi.org/10.1006/jcph.1996.0192
https://doi.org/10.1006/jcph.1996.0192
Publikováno v:
Journal of Spacecraft and Rockets. 33:525-534
An axisymmetric model of the plume and backflow contamination from an ion-thruster plume is presented. Components included are primary beam ions, neutral propellant efflux, thermal propellant ions created mainly by charge-exchange collisions between
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ac9c3ced18cdc04b9f4141383074cc9
https://doi.org/10.2514/3.26795
https://doi.org/10.2514/3.26795
Autor:
R. I. S. Roy, Daniel E. Hastings
Publikováno v:
Journal of Spacecraft and Rockets. 33:519-524
The plume structure and the backflow of both propellant and sputtered grid material from two 8-cm xenon ion thrusters operating simultaneously were investigated with a three-dimensional model of an ion-thruster plume based on the plasma particle-in-c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c898a7444f5f472375ab41c912f2214c
https://doi.org/10.2514/3.26794
https://doi.org/10.2514/3.26794
Publikováno v:
Journal of Spacecraft and Rockets. 33:535-542
A two-dimensional axisymmetric model was developed to investigate the plasma environment induced by an ion thruster and to assess plume backflow contamination. Predictions of the propellant charge-exchange plasma and sputtered molybdenum-grid metal e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95db95e619aae8ce8cedcbcecd6a4198
https://doi.org/10.2514/3.26796
https://doi.org/10.2514/3.26796
Publikováno v:
25th Plasmadynamics and Lasers Conference.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::baaca9fe3bbc22b5d3b8de54ba18402a
https://doi.org/10.2514/6.1994-2469
https://doi.org/10.2514/6.1994-2469
Publikováno v:
29th Joint Propulsion Conference and Exhibit.
While the potential problems of spacecraft contamination by the effluents of electric propulsion thrusters have been known for some , t ime, the limitations of ground experiments, and until recently, computational power, have prevented accurate asses
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4acbaaff754387137bb9c50f4d6db5f5
https://doi.org/10.2514/6.1993-2531
https://doi.org/10.2514/6.1993-2531
Autor:
Daniel E. Hastings, R. I. S. Roy
Publikováno v:
International Conference on Plasma Sciences (ICOPS).
Summary form only given. The authors have developed a 2-D electrostatic hybrid plasma particle-in-cell code with a Monte Carlo collision operator to simulate the transport of ions in the plume of an ion thruster. The electron density, velocity, and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96b35d85b388b88687d5e85b8f871b8c
https://doi.org/10.1109/plasma.1993.593475
https://doi.org/10.1109/plasma.1993.593475
Autor:
R. I. S. Roy, Daniel E. Hastings
Publikováno v:
The Behavior of Systems in the Space Environment ISBN: 9789401049078
Tethers in space can be used for a wide variety of applications such as power generation, propulsion, remote atmospheric sensing, momentum transfer for orbital maneuvers, micro-gravity experimentation, and artificial gravity generation. These are onl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e827bdd6d05b7ae07857520392da646e
https://doi.org/10.1007/978-94-011-2048-7_32
https://doi.org/10.1007/978-94-011-2048-7_32
Autor:
Daniel E. Hastings, R. I. S. Roy
Publikováno v:
28th Joint Propulsion Conference and Exhibit.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8513986f10454a409e944f590c86e654
https://doi.org/10.2514/6.1992-3560
https://doi.org/10.2514/6.1992-3560
Autor:
R. I. S. Roy, Daniel E. Hastings
Publikováno v:
22nd Fluid Dynamics, Plasma Dynamics and Lasers Conference.
An existing anisotropic anodic plasma contactor model is extended to include neutral gas emissions. Within the framework of the contactor model, the inclusion of external ionization leads to an integrodifferential equation. By choosing the ratio of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4bd4427721bebf4d34d5eb2c454d0fbf
https://doi.org/10.2514/6.1991-1477
https://doi.org/10.2514/6.1991-1477