有漂浮植被河道水流特性试验研究  

Experiment research on the hydrodynamic behavior of watercourse with aquatic floating plants

作　　者：何宁[1] 秦颖荣[1] 赵振兴[1] 

机构地区：[1]河海大学环境科学与工程学院,南京210098

出　　处：《Journal of Environmental Science and Engineering》2008年第12期25-29,共5页环境科学与工程（英文版）

摘　　要：在矩形水槽中按不同方式种植个体较小生、长旺盛的大藻，并对其进行了室内模型试验研究，利用三维超声波多普勒测速仪（ADV）分别测量按不同形状种植漂浮植被的矩形水槽中水流的瞬时流场，分析了植被附近区域水流在种植植被前后沿垂线方向的流速分布规律。结果表明：种植区前水位有一定的抬升。种植区的流速沿垂线剧烈地变化，而在种植区后区域，水流特性逐渐恢复正常。Indoor model test for hydraulic characteristics of common floating vegetation channels in ecological restoration was carried on. Healthy Pistia stratioes linn was planted in the rectangle model river-course in different shapes. The velocity of flow in different situation was measured by three-dimensional Acoustic Doppler Velocimeter （ADV）. The change of the rule of velocity is analyzed. The outcome shows that, water level rises in front of planting area, the velocity of flow in the planting area along the water depth changes intensely, however, the hydrodynamic behavior comes back to the original condition quickly rearwards the planting area.

关 键 词：ADV 大藻 水流特性 种植方式 流速分布 

分 类 号：X[环境科学与工程]