Title :
An analytical study of bubble motion in liquid nitrogen under DC nonuniform electric fields
Author :
Hara, Masanon ; Wang, Zen-Chao
Author_Institution :
Dept. of Electr. Eng., Kyushu Univ., Fukuoka, Japan
Abstract :
To clarify the bubble behavior in liquid coolant during quenching period of superconducting coils, the bubble motion is analyzed numerically with cylinder-to-plane electrode systems in liquid nitrogen under DC applied voltages. A set of differential equations which describes the motion of a spherical bubble is given and solved numerically to find bubble trajectory, characteristic time of the formation of bubble stagnation and effects of bubble size and gap parameters on the bubble behavior
Keywords :
bubbles; dielectric liquids; differential equations; electric breakdown; electric field effects; electrodes; electrostatics; superconducting coils; DC nonuniform electric fields; bubble size effects; bubble stagnation formation; bubble trajectory; dielectric liquids; differential equations; electrostatic forces; gap parameter effects; liquid coolant; liquid nitrogen; spherical bubble motion; superconducting coils quenching; Dielectric liquids; Drag; Electric fields; Electrodes; Electrostatics; Equations; Motion analysis; Nitrogen; Nonuniform electric fields; Voltage;
Conference_Titel :
Properties and Applications of Dielectric Materials, 1994., Proceedings of the 4th International Conference on
Conference_Location :
Brisbane, Qld.
Print_ISBN :
0-7803-1307-0
DOI :
10.1109/ICPADM.1994.414046
