| 卧式前轴伸泵装置流道三维流动及水力损失 |
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| 引用本文： | 陆林广,梁金栋,陈阿萍,刘荣华. 卧式前轴伸泵装置流道三维流动及水力损失[J]. 排灌机械, 2009, 27(1): 47-50 |
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| 作者姓名： | 陆林广 梁金栋 陈阿萍 刘荣华 |
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| 作者单位： | 扬州大学,水利科学与工程学院,江苏,扬州,225009 |
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| 摘 要： | 采用数值计算方法对卧式前轴伸泵装置的三维流场及水力性能进行了初步研究,获得了设计流量时进、出水流道的流场图以及水力损失值.同时,还采用透明流道模型试验的方法,分别对卧式前轴伸泵装置进、出水流道数值计算的结果进行了试验验证.研究结果表明：卧式前轴伸泵装置进、出水流道内的流态,数值计算的结果与试验结果一致,进水流道内的水流仅在泵轴后有很小范围的局部旋涡,进水流道出口断面的流速均匀度为96.9%;出水流道进口的水流具有一定环量,水流呈螺旋状流入流道,流道外侧的流速较大,流道中心附近流速较小.进、出水流道水力损失值,数值计算值分别为0.142 m和0.163 m,流道模型试验值为0.137 m和0.168 m,两者非常接近.该泵装置在低扬程泵站具有一定的应用前景.
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| 关 键 词： | 贯流泵装置 前轴伸式 卧式泵 流道 水力性能 数值计算 模型试验 |
3D turbulet flow and hydraulic loss for pump system with horizontal forward-extension shaft |
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| Lu Linguang,Liang Jindong,Chen Aping,Liu Ronghua. 3D turbulet flow and hydraulic loss for pump system with horizontal forward-extension shaft[J]. Drainage and Irrigation Machinery, 2009, 27(1): 47-50 |
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| Authors: | Lu Linguang Liang Jindong Chen Aping Liu Ronghua |
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| Affiliation: | College of Hydraulic Science and Engineering;Yangzhou University;Yangzhou;Jiangsu 225009;China |
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| Abstract: | The numerical simulation is applied to study the 3D flow field and hydraulic performance of the pump system with horizontal forward extension shaft.The flow patterns and hydraulic loss of the inlet and outlet conduits are obtained respectively.Meanwhile the method of transparent conduit model test is applied to verify the simulation results.The results indicate that the flow patterns of numerical simulation for inlet and outlet conduits of the pump system with horizontal forward extension shaft are consiste... |
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| Keywords: | tubular pump system type of forward extension shaft horizontal pump conduit hydraulic performance numerical simulation model test |
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