Simplified Wave Models Applicability to Shallow Mud Flows Modeled as Power-Law Fluids
文献类型：期刊论文
| 作者 | Cristiana DI CRISTO ; Michele IERVOLINO ; Andrea VACCA |
| 刊名 | Journal of Mountain Science
 |
| 出版日期 | 2014-11 |
| 卷号 | 11期号:6页码:1454-1465 |
| 关键词 | Power-law fluid Unsteady flows Shallow flows Simplified wave models |
| 通讯作者 | Cristiana DI CRISTO |
| 英文摘要 | Simplified wave models - such as kinematic, diffusion and quasi-steady - are widely employed as a convenient replacement of the full dynamic one in the analysis of unsteady open-channel flows, and especially for flood routing. While their use may guarantee a significant reduction of the computational effort, it is mandatory to define the conditions in which they may be confidently applied. The present paper investigates the applicability conditions of the kinematic, diffusion and quasi-steady dynamic shallow wave models for mud flows of power-law fluids. The power-law model describes in an adequate and convenient way fluids that at low shear rates fluids do not posses yield stress, such as clay or kaolin suspensions, which are frequently encountered in Chinese rivers. In the framework of a linear analysis, the propagation characteristics of a periodic perturbation of an initial steady uniform flow predicted by the simplified models are compared with those of the full dynamic one. Based on this comparison, applicability criteria for the different wave approximations for mud flood of power-law fluids are derived. The presented results provide guidelines for selecting the appropriate approximation for a given flow problem, and therefore they may represent a useful tool for engineering predictions. |
| 收录类别 | SCI |
| 公开日期 | 2014-11-18 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/7414]  |
| 专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2014_Vol11 No.6 |
| 推荐引用方式 GB/T 7714 | Cristiana DI CRISTO,Michele IERVOLINO,Andrea VACCA. Simplified Wave Models Applicability to Shallow Mud Flows Modeled as Power-Law Fluids[J]. Journal of Mountain Science,2014,11(6):1454-1465. |
| APA | Cristiana DI CRISTO,Michele IERVOLINO,&Andrea VACCA.(2014).Simplified Wave Models Applicability to Shallow Mud Flows Modeled as Power-Law Fluids.Journal of Mountain Science,11(6),1454-1465. |
| MLA | Cristiana DI CRISTO,et al."Simplified Wave Models Applicability to Shallow Mud Flows Modeled as Power-Law Fluids".Journal of Mountain Science 11.6(2014):1454-1465. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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