The stratification phenomena in the thermal and solutal fields of double-diffusive convection in a circular cylinder
文献类型：期刊论文
| 作者 | Shi, KF; Lu, WQ |
| 刊名 | Chinese science bulletin
 |
| 出版日期 | 2006-03-01 |
| 卷号 | 51期号:6页码:747-754 |
| 关键词 | Circular cylinder Natural convection Double-diffusive convection Buoyancy force Stratification phenomena |
| ISSN号 | 1001-6538 |
| DOI | 10.1007/s11434-006-0747-7 |
| 通讯作者 | Lu, wq() |
| 英文摘要 | The structure of double diffusive convection in a circular cylinder cavity has been numerically studied. the numerical results exhibit some new characters of non-horizontal stratifications of thermal and solutal fields: in the stratification state, the isothermal lines near the sidewall are higher than that near the symmetry axis, while the isoconcentration lines near the symmetry axis are relatively high. the mechanism of these non-horizontal stratifications is illustrated by comparing double-diffusive convection with natural convection driven by thermal buoyancy or solutal buoyancy alone. the effects of lewis number le and buoyancy ratio n on the non-horizontal stratifications of thermal and solutal fields are also investigated. the results show that: at a given time (t=0.2), with an increase in le (le = 0-15), the area influenced by solute diffusion decreases; for isothermal line, the gradients of it initially increase, but it tends to be horizontal at the top of the cavity when the lewis number is higher than 10. when n varies from 0 to 2, the isoconcentration lines tend to be horizontal while the gradients of isothermal line increase. |
| WOS关键词 | TRANSIENT NATURAL-CONVECTION ; HORIZONTAL TEMPERATURE ; RECTANGULAR ENCLOSURE ; CAVITY ; SOLIDIFICATION ; SIMULATION ; GRADIENTS ; SYSTEM |
| WOS研究方向 | Science & Technology - Other Topics |
| WOS类目 | Multidisciplinary Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000237619400015 |
| 出版者 | SCIENCE CHINA PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2378677 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Lu, WQ |
| 作者单位 | Chinese Acad Sci, Grad Univ, Coll Phys Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, KF,Lu, WQ. The stratification phenomena in the thermal and solutal fields of double-diffusive convection in a circular cylinder[J]. Chinese science bulletin,2006,51(6):747-754. |
| APA | Shi, KF,&Lu, WQ.(2006).The stratification phenomena in the thermal and solutal fields of double-diffusive convection in a circular cylinder.Chinese science bulletin,51(6),747-754. |
| MLA | Shi, KF,et al."The stratification phenomena in the thermal and solutal fields of double-diffusive convection in a circular cylinder".Chinese science bulletin 51.6(2006):747-754. |
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来源：中国科学院大学
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