斜向进流城市排水泵站进水箱涵配水均匀性的改善研究
斜向进流城市排水泵站进水箱涵配水均匀性的改善研究
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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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Xinxiang City: Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage
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为了分析上海某斜向进流城市排水泵站的水力流动特性,改善其进水箱涵的配水均匀性。基于非定常的雷诺时均N-S方程(URANS)和RNG k-ε湍流模型,采用CFD数值模拟方法研究泵站进水系统的水流流态和进水箱涵的配水均匀性,针对泵站进水系统存在的不足提出整流措施并对其进行数值模拟分析和物理模型试验验证。结果表明,斜向管涵进流容易造成泵站进水箱涵各孔内的流量分配不均,闸门井、部分箱涵孔内以及前池进口处存在旋涡、回流、横向流等不良流态;通过在闸门井内设计布置一种新型的整流措施,可以有效地改善斜向进流城市泵站进水箱涵内的水力流态和提高其配水的均匀性,其中箱涵各孔的流量分配系数由38.41%、5.11%、42.52%和13.96%分别调整为28.07%、22.48%、25.49%和23.96%,进而有利...
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斜向进流城市排水泵站进水箱涵配水均匀性的改善研究
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TN_cdi_proquest_journals_3098247865
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https://devfeature-collection.sl.nsw.gov.au/record/TN_cdi_proquest_journals_3098247865
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1672-3317
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10.13522/j.cnki.ggps.2017.12.013