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Plasma behavior in a non‐equilibrium disk MHD generator with a spatially non‐uniform seed fraction
Author(s) -
Murakami Takahiro,
Kobayashi Hiromichi,
Okuno Yoshihiro,
Kabashima Shigeharu
Publication year - 1999
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/(sici)1520-6416(199903)126:4<48::aid-eej6>3.0.co;2-b
Subject(s) - magnetohydrodynamic generator , magnetohydrodynamics , fraction (chemistry) , plasma , generator (circuit theory) , mechanics , materials science , mass fraction , physics , power (physics) , thermodynamics , chemistry , nuclear physics , organic chemistry
The influence of azimuthal non‐uniformity of the seed fraction on plasma structure and performance in a non‐equilibrium disk MHD generator is investigated with a two dimensional r –θ numerical simulation. It is found that a locally high seed fraction causes mainly non‐uniformity of gas‐dynamical properties, whereas a locally low seed fraction develops a non‐uniform plasma. Both locally high and low seed fractions reduce generator performance considerably. These results suggest a spatially uniform seed fraction should be required for high power generation. ©1999 Scripta Technica, Electr Eng Jpn, 126(4): 48–54, 1999