基于能耗理论的浑水管道输水临界不淤流速计算分析  

The Calculation Analysis of Muddy Water Pipeline's Critical Non-deposit Velocity Based on the Suspended Load Energy Consumption Theory

作　　者：何欣烨[1] 何武全[1,2] 

机构地区：[1]西北农林科技大学水利与建筑工程学院,陕西杨凌712100 [2]西北农林科技大学旱区农业水土工程教育部重点实验室,陕西杨凌712100

出　　处：《灌溉排水学报》2014年第2期25-27,共3页Journal of Irrigation and Drainage

基　　金：国家"十二五"科技支撑计划课题(2012BAD08B01);国家"十二五"农村领域科技计划课题(2011BAD25B04)

摘　　要：根据浑水管道输水中泥沙运动的特点,基于悬移质能耗理论,得出了浑水管道阻力损失与管道流速之间的关系,建立了浑水管道输水的临界不淤流速计算公式,并根据试验数据进行验证。结果表明,基于能耗理论建立的临界不淤流速计算公式计算的临界不淤流速与实测值的最大相对误差为3.063%,其精度高于其他3种经验公式。According to the characteristics of sediment movement in muddy water pipeline, the relationship between resistance losses and the flow velocity was obtained, the non-deposit velocity formula in the mud- dy water pipeline was established based on the theory of suspended load energy consumption, and the for- mula was verified by experimental data. The results indicated that the maximum relative error was 3. 063 between the measured values and calculated values by the established formula based on the theory of sus- pended load energy consumption. Compared with other three empirical formula, the precision of the estab- lished formula was higher.

关 键 词：浑水管道 临界不淤流速 悬移质能耗理论 阻力损失 

分 类 号：TV142[水利工程—水力学及河流动力学] TV134