Item type |
学術雑誌論文 / Journal Article(1) |
公開日 |
2022-03-23 |
タイトル |
|
|
タイトル |
Linear-System Solver for EFG-Type Saddle-Point Problem without Using QR Decomposition |
言語 |
|
|
言語 |
eng |
キーワード |
|
|
主題Scheme |
Other |
|
主題 |
computer simulation |
キーワード |
|
|
主題Scheme |
Other |
|
主題 |
element-free Galerkin method |
キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Krylov space method |
キーワード |
|
|
主題Scheme |
Other |
|
主題 |
meshless approach |
キーワード |
|
|
主題Scheme |
Other |
|
主題 |
QR decomposition |
キーワード |
|
|
主題Scheme |
Other |
|
主題 |
saddle-point problem |
資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
著者 |
KAMITANI, Atsushi
TAKAYAMA, Teruou
SAITOH, Ayumu
NAKAMURA, Hiroaki
|
抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
A novel method is proposed for solving an EFG-type Saddle-Point (EFG-SP) problem. Although the null-space method and the variable-reduction method (VRM) were developed as a solver of a saddle-point problem, both methods are extremely time-consuming in solving an EFG-SP problem. This is attributable to the QR decomposition that is indispensable for both methods. For the purpose of resolving this problem, the improved Variable-Reduction Method (iVRM) is formulated without using the QR decomposition. A numerical code has been developed for solving an EFG-SP problem with the iVRM, the VRM and the ICCG method. By means of the code, the performance of the three methods is investigated numerically. The results of computations show that, from the standpoint of convergence property and computational speed, the iVRM is even superior to either of the VRM and the ICCG method. |
書誌情報 |
Plasma and Fusion Research
巻 17,
号 Special Issue 1,
p. 2403014,
発行日 2022-03-18
|
書誌的事項 |
|
|
|
This article is based on the presentation at the 30th International Toki Conference on Plasma and Fusion Research (ITC30) |
出版者 |
|
|
出版者 |
The Japan Society of Plasma Science and Nuclear Fusion Research |
ISSN |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
18806821 |
書誌レコードID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA12346675 |
DOI |
|
|
関連タイプ |
isIdenticalTo |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1585/pfr.17.2403014 |
権利 |
|
|
権利情報 |
(c) 2022 The Japan Society of Plasma Science and Nuclear Fusion Research |
関連サイト |
|
|
|
識別子タイプ |
URI |
|
|
関連識別子 |
http://www.jspf.or.jp/PFR/PFR_articles/pfr2022/pfr2022_17-2403014.html |
|
|
関連名称 |
Publisher version |
著者版フラグ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
NAIS |
|
|
|
13357 |