2016 Fiscal Year Final Research Report
Development of Large-scale Electromagnetic Filed Analysis Based on Parallelized Finite Element Method
| Project/Area Number |
16H07385
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Power engineering/Power conversion/Electric machinery
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| Research Institution | Fukuoka University |
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Principal Investigator |
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| Project Period (FY) |
2016-08-26 – 2017-03-31
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| Keywords | 電磁界解析 / 線形方程式 / 前処理 / 並列計算 |
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| Outline of Final Research Achievements |
To realize further speed-up of parallel finite element method, effective preconditioner for linear system is investigated. The obtained results are summarized as follows.
(1) The block incomplete-Cholesky (IC) preconditioner with fill-in was introduced into parallelized linear solver. In magnetostatic filed analysis and time-domain eddy current analysis, the convergence characteristic using block IC with fill-in was superior to block IC without fill-in.
(2) The convergence characteristic of linear solver in laminated core model and induction heating (IH) cooker was improved by block IC with fill-in. In frequency-domain eddy current analysis of IH cooker, the elapsed time using block IC with fill-in was reduced to one fourth in comparison with conventional block IC.
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| Free Research Field |
計算電磁気学
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