Presentation 2018-09-06
Fast SPFD Analysis with Voxel Averaging Based on Subgrid Method
Takahiro Ito, Akimasa Hirata,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In recent years, there have been concerned about the adverse health effect of electromagnetic field exposure at low- and intermediate-frequency. In the guidelines by the International Commission of Non-Ionizing Radiation Protection (ICNIRP), the relationship between internal physical quantities and external electromagnetic field strength is introduced derived using anatomical numerical human models. The metric used in the evaluation is the internal electric field of 2 x 2 x 2 mm3 cubes. The necessity for considering more detailed structure (e.g., nerve) in the dosimetry may be needed not only for human safety but also for medical application. Thus, anatomical numerical human models with a resolution of 1mm or finer may be needed in future. On the other hand, the computational cost may increase dramatically in such computation. In our previous study, we applied a subgrid method to scalar-potential finite-difference method and evaluated its effectiveness for uniform magnetic-field exposures. In this study, we extended the discussion for the non-uniform exposure. A multilayered sphere model simulating the human head exposed from a small magnetic dipole is considered and then its effectiveness is demonstrated by comparing with Mie analytic solution.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) SPFD / multigrid / subgrid method / quasi-static approximation
Paper # EST2018-42
Date of Issue 2018-08-30 (EST)

Conference Information
Committee EST
Conference Date 2018/9/6(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Kumejima-machi, Okinawa
Topics (in Japanese) (See Japanese page)
Topics (in English) Simulation techniques, etc.
Chair Akimasa Hirata(Nagoya Inst. of Tech.)
Vice Chair Shinichiro Ohnuki(Nihon Univ.) / Masayuki Kimishima(Advantest) / Jun Shibayama(Hosei Univ.)
Secretary Shinichiro Ohnuki(CIST) / Masayuki Kimishima(National Inst. of Tech.,Sendai College) / Jun Shibayama
Assistant Takahiro Ito(Nagoya Inst. of Tech.) / Kazuhiro Fujita(Fujitsu)

Paper Information
Registration To Technical Committee on Electronics Simulation Technology
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Fast SPFD Analysis with Voxel Averaging Based on Subgrid Method
Sub Title (in English)
Keyword(1) SPFD
Keyword(2) multigrid
Keyword(3) subgrid method
Keyword(4) quasi-static approximation
1st Author's Name Takahiro Ito
1st Author's Affiliation Nagoya Institute of Technology(NIT)
2nd Author's Name Akimasa Hirata
2nd Author's Affiliation Nagoya Institute of Technology(NIT)
Date 2018-09-06
Paper # EST2018-42
Volume (vol) vol.118
Number (no) EST-209
Page pp.pp.1-4(EST),
#Pages 4
Date of Issue 2018-08-30 (EST)