Transport modeling of the DIII-D high βp scenario and extrapolations to ITER steady-state operation
文献类型：期刊论文
| 作者 | McClenaghan,J.1; Garofalo,A.M.2; Meneghini,O.2; Smith,S.P.2; Leuer,J.A.2; Staebler,G.M.2; Lao,L.L.2; Park,J.M.3; Ding,S.Y.4; Gong,X.4 |
| 刊名 | Nuclear Fusion
 |
| 出版日期 | 2017-08-03 |
| 卷号 | 57 |
| 关键词 | steady-state transport ITER DIII-D |
| ISSN号 | 0029-5515 |
| DOI | 10.1088/1741-4326/aa79ca |
| 英文摘要 | Abstract Transport modeling of a proposed ITER steady-state scenario based on DIII-D high poloidal-beta (βp) discharges finds that ITB formation can occur with either sufficient rotation or a negative central shear q-profile. The high βp scenario is characterized by a large bootstrap current fraction (80%) which reduces the demands on the external current drive, and a large radius internal transport barrier which is associated with excellent normalized confinement. Modeling predictions of the electron transport in the high βp scenario improve as q95 approaches levels similar to typical existing models of ITER steady-state and the ion transport is turbulence dominated. Typical temperature and density profiles from the non-inductive high βp scenario on DIII-D are scaled according to 0D modeling predictions of the requirements for achieving a Q=5 steady-state fusion gain in ITER with ‘day one’ heating and current drive capabilities. Then, TGLF turbulence modeling is carried out under systematic variations of the toroidal rotation and the core q-profile. A high bootstrap fraction, high βp scenario is found to be near an ITB formation threshold, and either strong negative central magnetic shear or rotation in a high bootstrap fraction are found to successfully provide the turbulence suppression required to achieve Q=5. |
| 语种 | 英语 |
| WOS记录号 | IOP:0029-5515-57-11-AA79CA |
| 出版者 | IOP Publishing |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/43012]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 作者单位 | 1.Oak Ridge Associated Universities, Oak Ridge, TN 37831, United States of America 2.General Atomics, PO Box 85608, San Diego, CA 92186–5608, United States of America 3.Oak Ridge National Laboratory, PO Box 2008, Oak Ridge, TN 37831, United States of America 4.Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | McClenaghan,J.,Garofalo,A.M.,Meneghini,O.,et al. Transport modeling of the DIII-D high βp scenario and extrapolations to ITER steady-state operation[J]. Nuclear Fusion,2017,57. |
| APA | McClenaghan,J..,Garofalo,A.M..,Meneghini,O..,Smith,S.P..,Leuer,J.A..,...&Qian,J..(2017).Transport modeling of the DIII-D high βp scenario and extrapolations to ITER steady-state operation.Nuclear Fusion,57. |
| MLA | McClenaghan,J.,et al."Transport modeling of the DIII-D high βp scenario and extrapolations to ITER steady-state operation".Nuclear Fusion 57(2017). |
入库方式： OAI收割
来源：合肥物质科学研究院
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。