文献类型：期刊文献

中文题名：湿地地表水与地下水交互作用可视化试验研究

英文题名：Experimental Study on Visualization of Interaction Between Surface Water and Groundwater in Wetland

作者：郜会彩[1];陈柳安[1];胡云进[1];肖玉福[2];田金炜[1]

机构：[1]绍兴文理学院土木工程学院,浙江绍兴312000;[2]宁波市水利水电规划设计研究院有限公司,浙江宁波315192

年份：2024

卷号：42

期号：3

起止页码：38

中文期刊名：水电能源科学

外文期刊名：Water Resources and Power

收录：北大核心2023、CSTPCD、、北大核心

基金：国家自然科学基金项目(41907167);浙江省自然科学基金项目(LY18E09004)。

语种：中文

中文关键词：湿地地表水;湿地地下水;透明土;粒子图像测速;数字图像处理

外文关键词：wetland surface water;wetland groundwater;transparent soil;particle image velocimetry;digital image processing

中文摘要：湿地独特的地形结构,导致地表水与地下水交互作用复杂,传统现场试验、室内模型试验和数值模拟难以很好地刻画湿地地表水与地下水的交互作用。对此,基于透明土原理,利用水凝胶颗粒和蒸馏水,配制成饱和透明土,构建湿地结构可视化模型,并采用粒子图像测速(PIV)技术获得不同试验工况下的湿地内部流场图;结合数字图像处理技术,揭示湿地内部水流的流动特性。结果表明,湿地丰水期时主要以地表水补给地下水为主,降雨量增大,河流对湿地两岸入渗效果影响区域增大,湿地表面积水深度由0 mm增加至2.5 mm;随着降雨量增大,湿地地表水补给到地下水系统的时间越短,降雨量为10 mm是降雨量为20 mm地表水补给到地下水系统时间的1.2倍。湿地枯水期时主要以地下水补给地表水为主,随着地下水压力增大,地下水向上补给的入渗速率依次增大,相同时间内地下水向上补给的距离依次增加。

外文摘要：The unique topographic structure of wetlands leads to complex interactions between surface water and groundwater.Traditional field tests,indoor model tests and numerical simulations are difficult to describe the interaction between surface water and groundwater in wetlands.To solve this problem,based on the principle of transparent soil,this paper uses hydrogel particles and distilled water to prepare saturated transparent soil and construct a visual model of wetland structure.In addition,Particle Image Velocimetry(PIV)technology is used to obtain the internal flow field of wetland under different test conditions.Combined with digital image processing technology,the flow characteristics of water inside the wetland are revealed.The results show that during the wetland period,the groundwater is mainly supplied by surface water.As the rainfall increases,the area of river infiltration effect on both sides of the wetland increases,and wetland surface water depth increased from 0 mm to 2.5 mm.As rainfall increases,the time for wetland surface water to recharge the groundwater system is shorter.A rainfall of 10 mm is 1.2 times longer than that of 20 mm of rainfall for surface water to recharge the groundwater system.During the wetland dry season,the surface water is mainly supplied by groundwater.As the pressure of groundwater increases,the infiltration rate of upward recharge and the distance of upward recharge by groundwater within the same period of time increase sequentially.