导流板的影响因子的研究(范术芳; 冯民权; 郑邦民)

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导流板的影响因子的研究

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8h(oe6dq|p0【作者】范术芳; 冯民权; 郑邦民 【作者单位】西安理工大学西北水资源与环境生态教育部重点实验室; 武汉大学水利水电学院水利论文uY?8Jm9@

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【论文摘要】 导流板是一种保护冲刷河道河床技术.它能够改变水流的流向并能显著地减少弯道水流中的次生水流,从而解决了弯道中凹岸冲刷,凸岸淤积的问题.本研究运用数值模拟和物理试验相结合的方法对导流板的最佳布置方式和导流效果进行了研究.流函数一涡量数学模型计算结果与试验结果进行了对比,两者具有良好的一致性.运用平面二维模型和立面二维模型对导流板的流速场进行数值模拟的结果总结了导流板的长度、入水深度、入水角度、个数等不同因子对导流效果的影响.通过比较导流板前的流速增大幅度,板后流速的减小幅度及板后的回流漩涡区长度来确定导流板导流效果的优劣,进而确定导流板的最佳布置方式及尺寸。水利论文:[ nk UBcsIy

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【英文论文摘要】 The vane is a technique for river bank protection,which can alter direction of velocity and eliminate observably the centrifugally induced secondary current to reduce concaved bank scour and protrude bank sediment in river curves.The best installed way and the efficiency of vanes was studied by the approach which associated with the numerical simulation and physics test in this paper.By contrasting the result of stream function-vorticity model with the tested result,it was shown that both results was accorded.Velocity field which was simulated by the plane two dimension and the vertical two dimension model can determinate the influence of vane for length,height,the angle of attack and number to efficiency of vanes.By contrasting change of velocity and length of circumfluence area to determinate efficiency of vanes,which can determinate best installed way and measurement of vanes.水利论文7D O {-lul_

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【论文关键词】 导流板; 导流效果; 流速场; 流函数-涡量模型水利论文)m:P&zR4ux R
【英文论文关键词】 the diversion vane; efficiency of diversion vanes; velocity field; stream function-vorticity model
9@ T Inj/W0【基金】黄河水利科学研究院院长基金项目

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TAG: 研究 范术芳 冯民权 郑邦民 导流
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