| PVC连接弯头的水力特性数值模拟 |
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| 引用本文： | 史皓男,贾佳.PVC连接弯头的水力特性数值模拟[J].中国水能及电气化,2016(1). |
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| 作者姓名： | 史皓男 贾佳 |
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| 作者单位： | 辽宁省康平县水利局,辽宁 康平,110500 |
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| 摘 要： | 为了研究PVC弯头的局部阻力和水流流态特征,对DN50和DN75两种PVC承插式90°弯头的水流特性利用CFD中的fluent软件进行了数值模拟,结果表明:不同管径弯头的局部阻力系数与雷诺数的关系曲线的变化趋势基本一致,压力在弯头拐角外侧压力最大,在下游管段内侧靠近弯头的位置压力最小。
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| 关 键 词： | PVC弯头 局部阻力系数 雷诺数 速度场 压力场 |
Numerical simulation of hydraulic characteristics of PVC connecting bend |
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| Abstract: | Water flowing features of DN50 and DN75 two kinds of socket type 90°bend undergo numerical simulation through utilizing fluent software in CFD in order to study local resistance and water flow pattern characteristics of PVC bend.Results show that the local resistance coefficient of different pipe diameter bends is basically consistent with the relationship curve change trend of Reynolds number.The pressure is the maximum outside the bend corner.And the pressure is the minimum inside the downstream pipe section close to the bend location. |
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| Keywords: | PVC bend local resistance coefficient Reynolds number velocity field pressure field |
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