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Simulation of collisional effects on divertor pumping in JT-60SA
https://repo.qst.go.jp/records/47826
https://repo.qst.go.jp/records/47826c9eb091f-0e81-4009-a7b1-5921a3261e55
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2017-04-26 | |||||
| タイトル | ||||||
| タイトル | Simulation of collisional effects on divertor pumping in JT-60SA | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 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 | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Gleason-Gonzalez, C.
× Gleason-Gonzalez, C.× Varoutis, S.× Luo, X.× Shimizu, K.× 仲野, 友英× 星野, 一生× 川島, 寿人× 朝倉, 伸幸× Day, Chr.× Sakurai, Shinji× 仲野 友英× 星野 一生× 川島 寿人× 朝倉 伸幸× 櫻井 真治 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In this work, the exhausted neutral gas flow is modeled for two cases of a simplified JT-60SA sub-divertor geometry and compared via three different approaches, namely (i) a collisionless approach based on the ProVac3D code, (ii) the DSMC approach based on the DIVGAS code that can be run with and without con- sideration of particle collisions, and (iii) the NEUT2D approach which has been extensively used in the past for the JT-60 design. In a first case study, the transmission probability was calculated by the 3 approaches and very good agreement is found between NEUT2D-ProVac3D whereas discrepancies between DIVGAS and NEUT2D are found and further analyzed. In the second case, the assessment of collisions is done by means of DIVGAS. Simulations showed that the flow is found in the transitional regime with Kn num- bers between 0.1 and 0.4. The DIVGAS collisionless case yielded lower values of temperature than the collisional one by factors of 0.5–0.8 in regions near the inlets of the sub-divertor whereas in regions near the pump and the chevron, the temperature difference is marginal. Moreover, a relative percentage difference of 16–40% in pressure values was found between collisionless and collisional approaches. | |||||
| 書誌情報 |
Fusion Engineering and Design 巻 109/111, p. 693-699, 発行日 2016-02 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0920-3796 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1016/j.fusengdes.2016.02.016 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://www.sciencedirect.com/science/article/pii/S0920379616301004 | |||||
| 関連名称 | http://www.sciencedirect.com/science/article/pii/S0920379616301004 | |||||
