摘要
通过数值模拟对阿拉沟水库溢洪道流场在两种工况下进行三维流场数值模拟，采用 RNG k ～ε模型模拟溢洪道流场湍流，并利用流体体积分数法（VOF）追踪自由水面，将得出两种工况下的溢洪道断面压强、自由水面高程、断面流态等计算结果，并与物理模型结果进行对比。结果表明数学模型计算能够准确地反映不同边界条件下溢洪道水流流态及各个参数，并且通过数值计算可以获得溢洪道在任何运行工况下任意位置的流场结构。其数值计算结果可以为阿拉沟水库溢洪道优化设计提供较可靠的理论依据和参考。
Throuh using the numerical simulation method to simulate the 3-D flow field under two working conditions of the spillway in Alagou Reservoir ,adopting the RNG k ~ ε model to simulate the turbulent flow of the spillway ,and using the fluid volume fraction method（VOF） to track the free water surface ,the calculation results for the section pressure in-tensity ,free surface elevation and section flow pattern of the spillway under two working conditions are obtained and com -pared with the results from the physical model .The results show that the mathematical model calculation could accurately reflect the flow patterns and various parameters of the spillway under different bowndary conditions ,and achieve the flow field structure under the optional positions of the spillway under optional working conditions .The numerical calculation results could provide the reliable theory basis for the optimal design of the spillway in Alagou Reservoir .
出处
《水利与建筑工程学报》
2014年第2期38-43,共6页
Journal of Water Resources and Architectural Engineering
基金
新疆维吾尔自治区本级财政支农专项资金
关键词
溢洪道
流场数值模拟
FLUENT
spillway
numerical simulation of flow field
fluent
