Innovating approaches to the generation of intense magnetic fields : design and optimization of a 4 Tesla permanent magnet flux source

1998 ◽  
Vol 34 (5) ◽  
pp. 2465-2468 ◽  
Author(s):  
F. Bloch ◽  
O. Cugat ◽  
G. Meunier ◽  
J.C. Toussaint
Keyword(s):  
Magnetic Fields ◽  
Permanent Magnet ◽  
Design And Optimization

Magnetophoresis Effects on the Flow Characteristics of Oil-Based Ferrofluids in Rectangular Enclosures

2015 ◽  
Vol 15 (10) ◽  
pp. 7451-7456
Author(s):  
Hyeon-Seok Seo ◽  
Jin-Hyo Boo ◽  
Youn-Jea Kim
Keyword(s):  
Magnetic Fields ◽  
Permanent Magnet ◽  
Flow Characteristics ◽  
Flow Fields ◽  
Working Fluid ◽  
Magnetic Flux Density ◽  
Magnetic Field Direction ◽  
Analysis Model ◽  
Rectangular Enclosure ◽  
Flow Phenomena

This study numerically investigated the flow characteristics in a rectangular enclosure filled with oil-based ferrofluid (EFH-1, Ferrotec.) under the influence of external magnetic fields. The rectangular enclosure contained obstacles with different shapes, such as a rectangle and a triangle mounted on the top and bottom wall surfaces. In order to generate external magnetic fields, a permanent magnet was located in the lower part of the rectangular enclosure, and its direction was selected to be either horizontal or vertical. Our results showed that the ferrofluid flow fields were affected by the applied external magnetic field direction and eddy flow phenomena in the working fluid were generated in the vicinity of high magnetic flux density distributions, such as at the edge of the permanent magnet. It was also confirmed that the magnetophoretic force distributions in the analysis model played a significant role in the development of the ferrofluid flow fields.

Design and Optimization of Multi-ring Permanent Magnet Bearings for High-speed rotors- A Computational Framework

2021 ◽  
Author(s):  
Raghavendra Kamath C ◽  
◽  
Ritesh Bhat ◽  
Siddappa I. Bekinal ◽  
Vijay G. S. ◽  
...  
Keyword(s):  
Permanent Magnet ◽  
High Speed ◽  
Computational Framework ◽  
Design And Optimization
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