管道输沙Wasp阻力模型探讨  

Discussion on resistance calculation of sediment hydraulic transport in pipeline based on Wasp model

作　　者：赵立娟[1,2] 倪福生[1,2] 顾磊[1,2] 

机构地区：[1]疏浚技术教育部工程研究中心,江苏常州213022 [2]河海大学机电工程学院,江苏常州213022

出　　处：《泥沙研究》2012年第6期75-80,共6页Journal of Sediment Research

基　　金：国家自然科学基金资助项目(50679016)

摘　　要：泥沙在管道中的运动状态随输送浓度和输送速度变化而变化。在不同输送浓度、输送速度条件下,如何确定泥沙颗粒中悬移质和推移质所占的份额是计算泥沙管道输送阻力损失的关键。在Wasp模型结构框架下,探讨了悬移质阻力计算方法及悬移质、推移质所占份额的计算方法,计算了细沙管道输送浆体的总阻力,并与实验结果进行了比较和分析。结果表明,由悬移质和水组成的两相载体的阻力,是构成细沙浆体总阻力的主要部分,对Wasp模型的预测效果有重要影响。The behavior of sediment in pipes is varied with the delivered concentration and transport velocity. How to determine the ratio of suspended sediment to bed load of sediment particles is the key point to calculate the pipeline resistance loss. In the framework of Wasp model, both the calculation method of the resistance of the suspended sediment and the calculation method of the ratio of suspended sediment to bed load are dis- cussed in the paper. The total resistance of slurry is computed, compared and analyzed with the experimental results. The results show that the resistance of the two-phase carrier （ composed with the suspended sediment and water） is the main component of the total resistance, and it has a major impact on the prediction effect of the Wasp model.

关 键 词：WASP模型 阻力损失 泥沙 管道 

分 类 号：TV134.2[水利工程—水力学及河流动力学] TV142