Title :
Dynamic behavior of gas flow in gradient magnetic fields
Author :
Ueno, S. ; Iwasaka, M. ; Eguchi, H. ; Kitajima, T.
Author_Institution :
Dept. of Electron., Kyushu Univ., Fukuoka, Japan
fDate :
11/1/1993 12:00:00 AM
Abstract :
The mechanism of the formation of the magnetic curtain which appears in an air atmosphere under gradient magnetic fields is studied. It is assumed that the magnetic curtain is a wall of air produced by the interaction of gradient magnetic fields with paramagnetic oxygen. Gas flow experiments in magnetic fields are carried out. The gas flow is clearly blocked by magnetic fields at 120 T2/m. A model based on molecular dynamics is proposed to explain the experimental results. Trajectories of gas flows are calculated, and the threshold value of magnetic field strength needed to block nitrogen gas flow is obtained
Keywords :
digital simulation; magnetohydrodynamics; molecular dynamics method; 8 T; N2 gas flow; air atmosphere; computer simulation; gas flow dynamic behaviour; gas flow trajectory; gradient magnetic fields; magnetic curtain formation mechanism; magnetic field strength; molecular dynamics model; paramagnetic O2; superconducting magnet; Atmosphere; Atmospheric modeling; Fires; Fluid flow; Magnetic field measurement; Magnetic fields; Magnetic flux; Nitrogen; Paramagnetic materials; Superconducting magnets;
Journal_Title :
Magnetics, IEEE Transactions on
