Applications of the k-omega Model in Stellar Evolutionary Models
文献类型：期刊论文
| 作者 | Li Y(李焱)1,2,3,4
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| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2017-05-20 |
| 卷号 | 841期号:1 |
| 关键词 | convection stars: evolution stars: interiors Sun: interior turbulence |
| ISSN号 | 0004-637X |
| 产权排序 | 第1完成单位 |
| 通讯作者 | Li, Yan(Chinese Acad Sci, Yunnan Observ, Kunming 650216, Peoples R China) |
| 英文摘要 | The k-omega model for turbulence was first proposed by Kolmogorov. A new k-omega model for stellar convection was developed by Li, which could reasonably describe turbulent convection not only in the convectively unstable zone, but also in the overshooting regions. We revised the k-omega model by improving several model assumptions (including the macro-length of turbulence, convective heat flux, and turbulent mixing diffusivity, etc.), making it applicable not only for convective envelopes, but also for convective cores. Eight parameters are introduced in the revised k-omega model. It should be noted that the Reynolds stress (turbulent pressure) is neglected in the equation of hydrostatic support. We applied it into solar models and 5 M-circle dot stellar models to calibrate the eight model parameters, as well as to investigate the effects of the convective overshooting on the Sun and intermediate mass stellar models. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | 天文学 |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | SOLAR CONVECTION ZONE ; TURBULENT CONVECTION ; MASSIVE STARS ; OVERSHOOTING REGION ; THERMAL-CONVECTION ; ELEMENT DIFFUSION ; HELIOSEISMOLOGY ; OPACITIES ; INTERIOR ; ENVELOPE |
| 收录类别 | SCI |
| 原文出处 | http://stacks.iop.org/0004-637X/841/i=1/a=10?key=crossref.c812a5edba8af40f5a9acad7449ce809 |
| 语种 | 英语 |
| WOS记录号 | WOS:000401582200010 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/10070]  |
| 专题 | 云南天文台_恒星物理研究组 云南天文台_中国科学院天体结构与演化重点实验室 |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China 2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China 3.University of Chinese Academy of Sciences, Beijing 100049, China 4.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100012, China |
| 推荐引用方式 GB/T 7714 | Li Y. Applications of the k-omega Model in Stellar Evolutionary Models[J]. ASTROPHYSICAL JOURNAL,2017,841(1). |
| APA | Li Y.(2017).Applications of the k-omega Model in Stellar Evolutionary Models.ASTROPHYSICAL JOURNAL,841(1). |
| MLA | Li Y."Applications of the k-omega Model in Stellar Evolutionary Models".ASTROPHYSICAL JOURNAL 841.1(2017). |
入库方式： OAI收割
来源：云南天文台
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