TY - JOUR
T1 - Numerical simulation of levitation force and magnetic field in levitated bulk superconductor
AU - Komano, Y.
AU - Sawa, K.
AU - Iwasa, Y.
AU - Yamachi, N.
AU - Murakami, M.
AU - Hirabayashi, I.
N1 - Funding Information:
This work was supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications.
PY - 2004/10
Y1 - 2004/10
N2 - It is known that the levitation of bulk superconductors could successfully be controlled using a Bi2223 superconducting electromagnet. In the previous study, we directly measured the levitation force and magnetic field on the surface of bulk superconductors levitated by this electromagnet. And the shielding current distribution was estimated from levitation force. But magnetic field was not in agreement with its simulation from this shielding current distribution. In the present study, we improved the formulas, and the shielding current distribution was estimated from trapped-field distribution. Experimental results of levitation force and magnetic field by the shielding current were compared with simulation from this shielding current distribution.
AB - It is known that the levitation of bulk superconductors could successfully be controlled using a Bi2223 superconducting electromagnet. In the previous study, we directly measured the levitation force and magnetic field on the surface of bulk superconductors levitated by this electromagnet. And the shielding current distribution was estimated from levitation force. But magnetic field was not in agreement with its simulation from this shielding current distribution. In the present study, we improved the formulas, and the shielding current distribution was estimated from trapped-field distribution. Experimental results of levitation force and magnetic field by the shielding current were compared with simulation from this shielding current distribution.
KW - Bean model
KW - HTS bulk
KW - Levitation force
KW - Shielding current distribution
KW - Trapped magnetic field
UR - http://www.scopus.com/inward/record.url?scp=4644328192&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=4644328192&partnerID=8YFLogxK
U2 - 10.1016/j.physc.2004.02.198
DO - 10.1016/j.physc.2004.02.198
M3 - Article
AN - SCOPUS:4644328192
VL - 412-414
SP - 729
EP - 733
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - SPEC. ISS.
ER -