泥石流的结构两相流模型:Ⅱ.应用
文献类型：期刊论文
| 作者 | 倪晋仁1; 王光谦2; 熊育武2; 张军3 ; 康志成3
|
| 刊名 | 地理学报
 |
| 出版日期 | 1998 |
| 卷号 | 53期号:1页码:77-85 |
| 关键词 | 泥石流 特殊性 结构两相流模型 应用 |
| ISSN号 | 0375-5444 |
| 其他题名 | CONCEPTUAL TWO PHASE FLOW MODEL OF DEBRIS FLOW: Ⅱ. APPLICATION |
| 通讯作者 | 倪晋仁 |
| 合作状况 | 国内 |
| 中文摘要 | 本文应用泥石流的结构两相流模型对各类泥石流的运动机理进行探讨，并成功地解释了泥石流运动中的一系列特殊现象，如可能出现的颗粒浓度“上大下小”型分布、泥石流垂线速度的“反Ｓ”型分布、泥石流中颗粒脉动速度分布变化的特殊性、泥石流的输移特性以及在一定条件下出现的“流核”现象，等等。模型计算结果得到了实验资料的验证。 |
| 英文摘要 | Based on the concep tual two2phase flow model developed in the companion paper, app lications of the model to the mechanism of various debris flows including muddy flow, water-rock flow as well as the general debris flows are discussed in greater details in the p resent paper. Specific characterist ics of debris flows are sumarized and theoretical explanations are given subsequently. Special at tention is paid to the flow characteristics of debris flow with cohesionless particles in either mild or steep flumes since there are enough reliable measured data in this study field. Predictions for the specific particle concentration profile, velocity profile, fluctuation profile aswell as the particle transport properties are made for both saturated and non-saturated water-rock flows. It is indicated that the saturated water-rock flow occuring in the mild slope channel behaves more like the laminated flow does, with common particle concentration, fluctuation profiles aswell as transport characteristics, but with typical particle velocity profiles different from those in sediment-laden flows. However, the non-saturated water-rock flow occuring in the steep slope channel behaves more like the rapid granular flow, dom inated by the collision among particles, and thus demostrate all kinds of special characteristics reported on the water-rock debris flows. The maximum concentrations at the flow surface and o ther special behaviours are succesfully modeled. The predicted results are reasonably verified by the experimental results. It is also indicated that more characteristics of debris flow swill be po ssible to be explained theoretically by using the concep tual model in case that the techno logy of measurements is improved in the near future. |
| 学科主题 | P642.23 |
| 分类号 | P642.23 |
| 收录类别 | CSCD ; 北大中文核心 |
| 资助信息 | 国家自然科学基金;霍英东青年教师基金;中国科学院东川泥石流观测研究站基金 |
| 语种 | 中文 |
| CSCD记录号 | CSCD:427740 |
| 公开日期 | 2011-05-05 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/3042]  |
| 专题 | 成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前） 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 作者单位 | 1.北京大学城市与环境学系 2.清华大学水利工程系 3.中国科学院东川泥石流观测研究站 |
| 推荐引用方式 GB/T 7714 | 倪晋仁,王光谦,熊育武,等. 泥石流的结构两相流模型:Ⅱ.应用[J]. 地理学报,1998,53(1):77-85. |
| APA | 倪晋仁,王光谦,熊育武,张军,&康志成.(1998).泥石流的结构两相流模型:Ⅱ.应用.地理学报,53(1),77-85. |
| MLA | 倪晋仁,et al."泥石流的结构两相流模型:Ⅱ.应用".地理学报 53.1(1998):77-85. |
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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