The characteristic coefficient analysis of the pressure curve type based on the classification method
The characteristic coefficient analysis of the pressure curve type based on the classification method
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基于分类法的压力曲线类型特征系数分析
DOI：
10.1007/s10586-017-1226-4
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发表时间：
2019-05
期刊：
影响因子：
--
通讯作者：
Huanfang Liu
中科院分区：
文献类型：
--
作者：
Yameng Wang;Huanfang Liu
穿孔管广泛应用于排水、灌溉和通风等领域。穿孔管中压头h的变化遵循一定的模式。通过分析多孔管在平坡上的末端变化规律，提出了多孔管的特征系数。根据穿孔管特性系数的大小，将穿孔管分为短、中、长三种类型。此外，还提出了根据穿孔管的特征系数和长径比来确定穿孔管类型的方法。在长穿孔管条件下，根据h值最大值和最小值的位置、穿孔管铺设的坡度和沿着穿孔管长度方向的水头损失比，将h曲线分为5种类型。试验结果表明，试验数据与计算结果的变化规律基本一致，表明压头曲线的分类具有一定的合理性和适用性。
Perforated pipes are widely used in applications such as drainage, irrigation and ventilation. The variation in the pressure head,h, in a perforated pipe follows a certain pattern. By analyzinghvariation patterns at the tail ends of perforated pipes on flat slope, and the characteristic coefficient of the perforated pipe was proposed. According to the value of characteristic coefficient of the perforated pipe, perforated pipes are classified into three types, namely, short, medium and long pipes. In addition, a method for determining the type of perforated pipe based on its characteristic coefficient and length-to-diameter ratio is provided. Furthermore, on the condition of long perforated pipe, based on the locations of the maximum and minimumhvalues, the slope at which the perforated pipe is laid and the head loss ratio along the length of the perforated pipe,hcurves are classified into five types. The experimental results demonstrate that the experimental data exhibit a variation pattern consistent with that of the calculation results, indicating that the classification of pressure head curves is, to a certain degree, reasonable and applicable.
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DOI：
10.1061/(asce)0733-9437(2006)132:1(55
发表时间：
2006-02
期刊：
Journal of Irrigation and Drainage Engineering-asce
影响因子：
--
作者：
H. Abida;J. Sabourin
通讯作者：
H. Abida;J. Sabourin
DOI：
--
发表时间：
2014
期刊：
China Rural Water and Hydropower
影响因子：
--
作者：
Chang Huan-hua
通讯作者：
Chang Huan-hua
影响因子：
2
作者：
Daniel Maynes;G. Holt;Jonathan D. Blotter
通讯作者：
Daniel Maynes;G. Holt;Jonathan D. Blotter
影响因子：
1.4
作者：
A. Nouri-Borujerdi;M. H. Seyyed-Hashemi
通讯作者：
A. Nouri-Borujerdi;M. H. Seyyed-Hashemi
影响因子：
3.2
作者：
M. Sheikholeslami;M. Gorji-Bandpy;D. Ganji
通讯作者：
M. Sheikholeslami;M. Gorji-Bandpy;D. Ganji