Modeling of Cavern Formation in Yield Stress Fluids in Stirred Tanks
文献类型：期刊论文
| 作者 | Xiao, Qi1,2; Yang, Ning2; Zhu, Jiahua3; Guo, Liejin1 |
| 刊名 | AICHE JOURNAL
 |
| 出版日期 | 2014-08-01 |
| 卷号 | 60期号:8页码:3057-3070 |
| 关键词 | computational fluid dynamics stirred tank yield stress cavern |
| ISSN号 | 0001-1541 |
| 其他题名 | Aiche J. |
| 中文摘要 | Prediction of cavern formation in yield stress fluids in stirred tanks is of great importance for optimization. A new torus model is developed and then validated by experimental data and computational fluid dynamics simulation. Unlike existing mathematical models, the new torus model assumes that the circular center of the torus should not be outside the impeller swept region as the Reynolds number (Re) increases. Hence the cavern boundary is shaped like an apple torus rather than a horn torus. The new model also considers the cavern-vessel interactions. At relatively high Re, the new model predicts cavern shape and size better than other models. It correctly captures the cavern outline at various Re, which verified the assumption about torus center. The new model is then used to identify the influence of rheological parameters on cavern formation, and further extended to the cavern prediction of the dual-impeller system. (C) 2014 American Institute of Chemical Engineers |
| 英文摘要 | Prediction of cavern formation in yield stress fluids in stirred tanks is of great importance for optimization. A new torus model is developed and then validated by experimental data and computational fluid dynamics simulation. Unlike existing mathematical models, the new torus model assumes that the circular center of the torus should not be outside the impeller swept region as the Reynolds number (Re) increases. Hence the cavern boundary is shaped like an apple torus rather than a horn torus. The new model also considers the cavern-vessel interactions. At relatively high Re, the new model predicts cavern shape and size better than other models. It correctly captures the cavern outline at various Re, which verified the assumption about torus center. The new model is then used to identify the influence of rheological parameters on cavern formation, and further extended to the cavern prediction of the dual-impeller system. (C) 2014 American Institute of Chemical Engineers |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | TURBULENT-FLOW REGIME ; NON-NEWTONIAN FLUIDS ; PLASTIC FLUID ; SHEAR RATE ; IMPELLERS ; SIZES ; VESSELS ; VISUALIZATION ; PERFORMANCE ; BOUNDARIES |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000339256100031 |
| 公开日期 | 2014-08-28 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/10995]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Xi An Jiao Tong Univ, State Key Lab Multiphase Flow Power Engn, Xian 710049, Shaanxi, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 3.Sichuan Univ, Sch Chem Engn, Chengdu 610065, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiao, Qi,Yang, Ning,Zhu, Jiahua,et al. Modeling of Cavern Formation in Yield Stress Fluids in Stirred Tanks[J]. AICHE JOURNAL,2014,60(8):3057-3070. |
| APA | Xiao, Qi,Yang, Ning,Zhu, Jiahua,&Guo, Liejin.(2014).Modeling of Cavern Formation in Yield Stress Fluids in Stirred Tanks.AICHE JOURNAL,60(8),3057-3070. |
| MLA | Xiao, Qi,et al."Modeling of Cavern Formation in Yield Stress Fluids in Stirred Tanks".AICHE JOURNAL 60.8(2014):3057-3070. |
入库方式： OAI收割
来源：过程工程研究所
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。