薄壁微喷带沿程水头损失试验研究
薄壁微喷带沿程水头损失试验研究
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GOU Wanli , YANG Luhua , DI Zhigang and WANG, Jinyi
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Xinxiang City: Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage
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Publisher
Xinxiang City: Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage
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【目的】研究薄壁型微喷带沿程水头损失的水力性能。【方法】采用控制变量法与L9(34)正交试验方案，对折径为N43、N45、N50、N64 mm的微喷带进行沿程水头损失水力性能试验，获取流量、长度、折径与水头损失等试验数据，分析流量、长度、折径三因素对沿程水头损失的影响程度以及水头损失相关水力性能参数，提出了沿程阻力系数，对沿程水头损失计算公式参数进行修改，得出了薄壁型微喷带水头损失计算参数。【结果】薄壁型微喷带沿程水头损失随着压力与铺设长度的增大而增大；折径、流量、长度的F值分别为90.314、26.056、19.041，表明对沿程水头损失影响依次减小。【结论】采用修改后的沿程水头损失计算参数计算薄壁型微喷带沿程水头损失值与试验值吻合较好。
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薄壁微喷带沿程水头损失试验研究
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TN_cdi_wanfang_journals_ggps201905012
Permalink
https://devfeature-collection.sl.nsw.gov.au/record/TN_cdi_wanfang_journals_ggps201905012
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ISSN
1672-3317
DOI
10.13522/j.cnki.ggps.20180627
