摘要
本文应用k-ε-A紊动应力模型,将压力速度修正法与有限分析法相结合,对具有对称、非对称断面以及不同边壁糙率的漫滩水流问题进行模拟。与某些实验资料比较表明,该模型可以很好地计算切应力沿湿周的分布,以及通过主槽和漫潍断面的流量。
A numerical model(k-ε-A model) capable of predicting three-dimensional flow characteristics in a compound channel is described. The model predicted the total flow rate, shear stress and its distribution around the wetted perimeter, and the percentage of flow carried by the different sections. Furthermore, a computer programm being capable of treating compound channel having different cross section shapes and different boundary roughnesses is produeted, Agreement between data and prediction is obtained.
