摘要
本文以灌河口外航道整治物理模型试验为依据,介绍在国内率先运用由数学模型提供边界流量条件后,通过物理模型三面开边界实行全自动控制边界流量,成功地复演了河口口外水域旋转流流场特性的一种新型试验方法.模型中应用氢气泡示踪线结合计算机视频图像处理技术,较好地解决了口外开敞式水域流场低速、流向瞬变的测试难题,提高了量测精度.
In this paper a new physical modelling technique of tidal current is presented in which discharge regulators automatically control discharge on three boundaries, while the boundary discharge is determined by mathematical model of tidal current. The rotation characterisics of tidal current in estuarine water area is successfully reproduced in the model. By using hydrogen gas bubble trace lines combined with real time image capture technique, the difficulty of measuring low velocity and variable current direction in a open water area is solved, and the precision of measurement is boosted.
出处
《泥沙研究》
CSCD
北大核心
1992年第1期36-43,共8页
Journal of Sediment Research
