圆锥形喷嘴水头损失的计算公式与试验研究  

A Calculative Formula and Experimental Study on Loss-of-Head of Taper Nozzle

作　　者：脱云飞[1] 杨路华[1] 郭涛 张丽娟[3] 

机构地区：[1]河北农业大学城乡建设学院,河北保定071000 [2]甘肃省张掖市甘兰水利水电建筑设计院,甘肃张掖734000 [3]新疆生产建设兵团农一师阿拉尔中学,新疆阿拉尔843000

出　　处：《节水灌溉》2005年第4期14-15,18,共3页Water Saving Irrigation

基　　金：河北省发改委项目和河北省教育厅项目(2002243)资助。

摘　　要：根据水力学基本原理和水头损失的概念,推导出圆锥形喷嘴水头损失大小的计算公式。实验结果表明:该计算公式的计算值与实测值的拟合效果较好,且与实测值相对误差的平均值仅为7.12%。故该计算公式具有广泛的实用性。Based on hydraulics theories and concept of loss-of-head, a new calculative formula of loss-of-head on taper nozzle was deducted. The results show that the new calculative formula was very satisfied with data of experimentation, and the average value of relative errors is only 7. 12%. So the calculative formula has widely applicability.

关 键 词：圆锥形喷嘴 水头损失 试验研究 水力学 

分 类 号：S274.2[农业科学—农业水土工程]