| 河道低温水对地表水-地下水交错带温度的影响 |
| |
| 引用本文： | 杨勇,赵坚,陈孝兵,沈振中. 河道低温水对地表水-地下水交错带温度的影响[J]. 长江科学院院报, 2012, 29(1): 20-29 |
| |
| 作者姓名： | 杨勇 赵坚 陈孝兵 沈振中 |
| |
| 作者单位： | 1. 河海大学水利水电学院,南京210098;河北省水利水电第二勘测设计研究院规划处,石家庄050021
2. 河海大学水利水电学院,南京,210098 |
| |
| 基金项目： | 水利部公益性项目，教育部博士点基金 |
| |
| 摘 要： | 利用饱和多孔介质水热耦合运移数学模型,分析了流入河道的水库下泄低温水水位和水温对地表水-地下水交错带温度场的影响规律。研究表明:在低温水下渗过程中,水热运移以热对流作用占主导,热传导、热弥散等作用较弱;河道水位升降明显决定着受影响的温度场区域范围大小;河道水温高低主要影响温度场各点温度的变化幅度。
|
| 关 键 词： | 水热耦合运移 低温水 交错带 数值模拟 |
Impact of Cold Water in the Channel on the Temperature of Groundwater-Surface Water Ecotone |
| |
| YANG Yong , ZHAO Jian , CHEN Xiao-bing , SHEN Zhen-zhong. Impact of Cold Water in the Channel on the Temperature of Groundwater-Surface Water Ecotone[J]. Journal of Yangtze River Scientific Research Institute, 2012, 29(1): 20-29 |
| |
| Authors: | YANG Yong ZHAO Jian CHEN Xiao-bing SHEN Zhen-zhong |
| |
| Affiliation: | 1(1.College of Water Conservancy and Hydropower Engineering,Hohai University,Nanjing 210098,China; 2.The Second Design and Research Institute of Water Conservancy and Hydropower of Hebei Province, Shijiazhuang 050021,China) |
| |
| Abstract: | The influences of the level and the temperature of cold water in the channel released from reservoir on the temperature field of groundwater-surface water ecotone is analyzed with mathematical models of coupled water and heat transfer in saturated porous media.The research shows that compared with thermal conduction and thermal blooming,the thermal convection plays a leading role in the transfer of underground water and heat during cold water infiltration.Water level in the channel determines the extent of the temperature field being affected,and water temperature mainly affects the temperature variation at each point in the temperature field. |
| |
| Keywords: | coupled water and heat transfer cold water groundwater-surface water ecotone numerical simulation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《长江科学院院报》浏览原始摘要信息 |
|
点击此处可从《长江科学院院报》下载全文 |
|
