为了克服传统的冰水动力学试验和模型冰的缺点,开发并搭建了低温冰水动力学试验平台,用于模拟真冰条件下冰水的耦合作用。该试验平台极大地提高了冰水动力学试验的精度和效率,拓展了实验室所能模拟的冰水动力学过程,为生产实践中出现的复杂的冰问题研究提供了手段。试验平台包括温度控制SCADA系统、试验控制SCADA系统、可拆卸循环水槽、变速泵系统、可变速加冰系统、闸门控制系统等,实现了水位、流量、闸门动作和上游来冰模拟的计算机自动控制和实时数据采集。利用开发的试验平台,以南水北调中线工程典型的唐河倒虹吸为原型,开展了相关冰塞堆积试验,通过试验数据分析验证了平台工作的精度和可靠性。
For overcoming disadvantages of traditional ice-hydrodynamics experiments and model ice , an ice-hydrodynamics simulation platform is developed. This platform greatly improves precision and efficiency , extends simulation capacity , and provides a mean to research complex ice problems in winter. The platform integrates the experiment control SCADA system , the temperature control SCADA system , demountable cir culating flume , variable speed pump system , variable speed ice supply system and gate control system , and so on , realizes automatic control and real-time data collection of water level , discharge , gate ’ s action and ice supply. By ice accumulation experiments of the Tanghe inverted siphon which is a hydraulic struc ture of the central line of South to North Water Diversion Project , precision and reliability of platform are proved.