【摘要】 以水槽试验为基础,对非淹没丁坝附近的水流现象进行了定性描述。采用三维声学多普勒流速仪对丁坝附近的水流特性进行了系统的试验研究,分析了弯道水流的三维时均流速和水面形态等,进一步表明绕丁坝近场流动的强三维非恒定性。更多还原

【Abstract】 The flow pattern near the non-submerged spur dikes were discussed.The experimental study on the flow characteristics of the spur dikes was conducted by mean of the advanced three-dimensional acoustics Doppler current meter.Time-average velocity and water surface characteristics were discussed from all aspects.The observed information showed that the flow was three dimensional and unsteady due to the fluctuating circulation zone and surface wave.更多还原