Improvements of the on-the-fly MC variance reduction technique with dynamic WW upper bounds
文献类型：期刊论文
| 作者 | Zheng, Yu2,3; Qiu, Yuefeng5; Lu, Peng1; Chen, Yixue4; Fischer, Ulrich5; Liu, Songlin3
|
| 刊名 | NUCLEAR FUSION
 |
| 出版日期 | 2022-08-01 |
| 卷号 | 62 |
| 关键词 | Monte Carlo long history variance reduction weight window MCNP |
| ISSN号 | 0029-5515 |
| DOI | 10.1088/1741-4326/ac75fc |
| 通讯作者 | Qiu, Yuefeng(yuefeng.qiu@kit.edu) ; Liu, Songlin(slliu@ipp.ac.cn) |
| 英文摘要 | This paper presents the recent progress in the development of the on-the-fly global variance reduction (OTF-GVR) method for Monte Carlo (MC) shielding calculations. OTF-GVR method provides on-the-fly weight window mesh (WWM) generation along with the particle transport simulation. In the previous study, the solution for the so-called 'long-history' problem, in which particles are unnecessarily over-split, is empirical and not fully effective. In this work, an innovative method using dynamic WWM upper bounds was proposed, which diminishes the over-splitting particles by relaxing the weight-windows upper bounds. This method has been proven effective through applications for several fusion reactors and neutron source facilities, with excellent performances over analogue simulations and variance reduction runs using common GVR methods. |
| 资助项目 | National MCF Energy RD Program[2019YFE03110002] ; Chinese National Natural Science Foundation[11775256] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000814827700001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | National MCF Energy RD Program ; Chinese National Natural Science Foundation |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/129572]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Qiu, Yuefeng; Liu, Songlin |
| 作者单位 | 1.Hefei Comprehens Natl Sci Ctr, Inst Energy, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Inst Plasma Phys, Hefei Inst Phys Sci, Hefei 230031, Peoples R China 4.North China Elect Power Univ, Sch Nucl Sci & Engn, Beijing 102206, Peoples R China 5.Karlsruhe Inst Technol KIT, Hermann von Helmholtz Pl 1, D-76344 Karlsruhe, Germany |
| 推荐引用方式 GB/T 7714 | Zheng, Yu,Qiu, Yuefeng,Lu, Peng,et al. Improvements of the on-the-fly MC variance reduction technique with dynamic WW upper bounds[J]. NUCLEAR FUSION,2022,62. |
| APA | Zheng, Yu,Qiu, Yuefeng,Lu, Peng,Chen, Yixue,Fischer, Ulrich,&Liu, Songlin.(2022).Improvements of the on-the-fly MC variance reduction technique with dynamic WW upper bounds.NUCLEAR FUSION,62. |
| MLA | Zheng, Yu,et al."Improvements of the on-the-fly MC variance reduction technique with dynamic WW upper bounds".NUCLEAR FUSION 62(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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