Comparison of various methods for 3-D eddy current analysis

Nakata, T.; Takahashi, Norio; Fujiwara, Koji; Muramatsu, Kazuhiro; Cheng, Zhiguang

doi:10.1109/20.92367

Cited by 24 publications

(9 citation statements)

References 5 publications

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“…Formulation Using the magnetic vector potential A and electric scalar potential V as electromagnetic field variables, the electric field intensity E in conducting region (V C ) and magnetic flux density B in conducting and non-conducting region ðV C < V N Þ are defined as (Biro and Preis, 1989;Nakata et al, 1988;Patecki et al, 1998):…”

Section: Power Losses Analysismentioning

confidence: 99%

“…The system of equations ( 3)-( 5) is well known for eddy current problem (Biro and Preis, 1989;Nakata et al, 1988;Patecki et al, 1998), which defines magnetic field strength inside and around a conductor. Obviously, induced current and current divergence in conducting region are considered.…”

Section: Power Losses Analysismentioning

confidence: 99%

“…The normal components of flowing current are prescribed on the boundary surfaces. The above boundary value problem can be written in integral form (Nakata et al, 1988;Patecki et al, 1998):…”

Section: Power Losses Analysismentioning

confidence: 99%

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Power losses analysis in the windings of electromagnetic gear

Patecki

Stępień²,

Szymański³

2004

COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering

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If you would like to write for this, or any other Emerald publication, then please use our Emerald for Authors service information about how to choose which publication to write for and submission guidelines are available for all. Please visit www.emeraldinsight.com/authors for more information. About Emerald www.emeraldinsight.comEmerald is a global publisher linking research and practice to the benefit of society. The company manages a portfolio of more than 290 journals and over 2,350 books and book series volumes, as well as providing an extensive range of online products and additional customer resources and services.Emerald is both COUNTER 4 and TRANSFER compliant. The organization is a partner of the Committee on Publication Ethics (COPE) and also works with Portico and the LOCKSS initiative for digital archive preservation.Abstract Presents 3D method for the computation of the winding current distribution and power losses of the electromagnetic gear. For a prescribed current obtained from measurement, the transient eddy current field is defined in terms of a magnetic vector potential and an electric scalar potential. From numerically obtained potentials the power losses are determined. The winding power losses calculation of an electromagnetic gear shows that a given course of the current generates skin effect and significantly changes the windings resistances. Also presents the designing method for reducing power losses.

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Section: Power Losses Analysismentioning

confidence: 99%

Section: Power Losses Analysismentioning

confidence: 99%

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Power losses analysis in the windings of electromagnetic gear

Patecki

Stępień²,

Szymański³

2004

COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering

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“…The analysis of the flow field is performed with the use of a system of equations in the form (26), (27), and energy balance Eq. (22) [8,11] (26), (27) and (22), using for example Direct Numerical Simulation method, very fine grids must be used (the number of nodes proportional to Re 9/4 ). In order to avoid it, one can introduce a turbulence model.…”

Section: Mathematical Description and Computational Model For The Anamentioning

confidence: 99%

Modelling Methods of Magnetohydrodynamic Phenomena Occurring in a Channel of the Device Used to Wash Out the Spent Automotive Catalyst by a Liquid Metal

Fornalczyk

Przyłucki

Golak

et al. 2016

Archives of Metallurgy and Materials

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The recovery of precious metals is necessary for environmental and economic reasons. Spent catalysts from automotive industry containing precious metals are very attractive recyclable material as the devices have to be periodically renovated and eventually replaced. This paper presents the method of removing platinum from the spent catalytic converters applying lead as a collector metal in a device used to wash out by using mangetohydrodynamic stirrer. The article includes the description of the methods used for modeling of magnetohydrodynamic phenomena (coupled analysis of the electromagnetic, temperature and flow fields) occurring in this particular device. The paper describes the general phenomena and ways of coupling the various physical fields for this type of calculation. The basic computational techniques with a discussion of their advantages and disadvantages are presented.

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“…Nakata, et al [130] have discretized the various eddy current formulations dis cussed above and compared the accuracy, computer storage and cpii time for each method. They applied the formulations to the Bath cube problem [100] and compared the magnetic flux density at certain points in the material.…”

Section: Electric Vector Potentialmentioning

confidence: 99%

Finite element and boundary element analysis of electromagnetic NDE phenomena

1995

NDT & E International

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This manuscript has been reproduced from the microfilm master. UMI films the text directly from the original or copy submitted. Thus, some thesis and dissertation copies are in typewriter face, while others may be from any type of computer printer.The quality of this reproduction is dependent upon the quality of the copy submitted. Broken or indistinct print, colored or poor quality illustrations and photographs, print bleedthrough, substandard margins, and improper aligimient can adversely affect reproduction.In the unlikely event that the author did not send UMI a complete manuscript and there are missing pages, these will be noted. Also, if unauthorized copyright material bad to be removed, a note will indicate the deletion.Oversize materials (e.g., maps, drawings, charts) are reproduced by sectioning the original, beginning at the upper left-hand corner and continuing from left to right in equal sections with small overlaps. Each original is also photographed in one exposure and is included in reduced form at the back of the book.Photographs included in the original manuscript have been reproduced xerographically in this copy. Higher quality 6" x 9" black and white photographic prints are available for any photographs or illustrations appearing in this copy for an additional charge. Contact UMI directly to order. Copyright © Shridhar Nath, 1992. All rights reserved.Signature was redacted for privacy.Signature was redacted for privacy.Signature was redacted for privacy.Signature was redacted for privacy.ii

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Comparison of various methods for 3-D eddy current analysis

Abstract: = O

Cited by 24 publications

References 5 publications

Power losses analysis in the windings of electromagnetic gear

Power losses analysis in the windings of electromagnetic gear

Modelling Methods of Magnetohydrodynamic Phenomena Occurring in a Channel of the Device Used to Wash Out the Spent Automotive Catalyst by a Liquid Metal

Finite element and boundary element analysis of electromagnetic NDE phenomena

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