Physical factors affecting the transport and deposition of particles in saturated porous media
文献类型：期刊论文
| 作者 | Cui, Xianze1; Liu, Quansheng2; Zhang, Chengyuan2 |
| 刊名 | WATER SCIENCE AND TECHNOLOGY-WATER SUPPLY
 |
| 出版日期 | 2017 |
| 卷号 | 17期号:6页码:1616-1625 |
| 关键词 | deposition rate coefficient flow velocity longitudinal dispersion coefficient particle concentration sand box experiments |
| ISSN号 | 1606-9749 |
| DOI | 10.2166/ws.2017.065 |
| 英文摘要 | Saturated sand box experiments were conducted to explore the effect of various physical factors on the transport and deposition of suspended particles in porous media. Red quartz powder and natural quartz sand were employed in the study and acted as suspended particles and porous media, respectively. Particles were injected into the sand box in two modes, i.e., pulse injection and continuous injection. Tests were performed at various particle concentrations, flow velocities, deposition rate coefficient and longitudinal dispersion coefficient by both injection modes. The breakthrough curves were described with the analytical solution of a convection-dispersion equation, in which first-order deposition kinetics were taken into account. Different behavior of suspended-particle transport and deposition in porous media was observed under different injection modes and experimental conditions. The results show that effluent concentration was approximately linear with the initial particle concentration. The deposition rate coefficient depends strongly on particle size and flow velocity, and the transport and deposition process was very sensitive to it. Furthermore, the longitudinal dispersion coefficient increases with increasing flow rate, and particles are easier to transport through pores as the longitudinal dispersion coefficient increases. This study shows the importance of particle concentration, flow velocity, deposition rate coefficient and longitudinal dispersion coefficient in the transport and deposition process of suspended particles. |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000417947000012 |
| 出版者 | IWA PUBLISHING |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/4176]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.China Three Gorges Univ, Coll Hydraul & Environm Engn ; 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn |
| 推荐引用方式 GB/T 7714 | Cui, Xianze,Liu, Quansheng,Zhang, Chengyuan. Physical factors affecting the transport and deposition of particles in saturated porous media[J]. WATER SCIENCE AND TECHNOLOGY-WATER SUPPLY,2017,17(6):1616-1625. |
| APA | Cui, Xianze,Liu, Quansheng,&Zhang, Chengyuan.(2017).Physical factors affecting the transport and deposition of particles in saturated porous media.WATER SCIENCE AND TECHNOLOGY-WATER SUPPLY,17(6),1616-1625. |
| MLA | Cui, Xianze,et al."Physical factors affecting the transport and deposition of particles in saturated porous media".WATER SCIENCE AND TECHNOLOGY-WATER SUPPLY 17.6(2017):1616-1625. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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