| 卡基娃水电站放空洞脉动压力模型试验研究 |
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| 引用本文： | 王均星,杜少磊,陈利强,王瑞峰.卡基娃水电站放空洞脉动压力模型试验研究[J].武汉大学学报(工学版),2012,45(4):436-441. |
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| 作者姓名： | 王均星 杜少磊 陈利强 王瑞峰 |
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| 作者单位： | 武汉大学水资源与水电工程科学国家重点实验室,湖北武汉,430072 |
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| 摘 要： | 水流脉动压力会加剧闸门门槽的空蚀空化,增大阶梯泄槽底板承受的荷载,目前研究很少.结合卡基娃水电站放空洞工程实例,介绍了大比尺模型试验中脉动压力的测试方法及数据处理,分析了水流的脉动压力强度、脉动压力系数大小和频谱特征,得出工作门槽和阶梯泄槽部位的脉动压力特征和分布规律.希望能为高水头大流速的泄水建筑物的设计和安全运行提供参考依据.
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| 关 键 词： | 放空洞 脉动压力 模型试验 门槽 阶梯泄槽 |
Model test research on fluctuating pressure on emptying tunnel of Kajiwa hydropower station |
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| WANG Junxing,DU Shaolei,CHEN Liqiang,WANG Ruifeng.Model test research on fluctuating pressure on emptying tunnel of Kajiwa hydropower station[J].Engineering Journal of Wuhan University,2012,45(4):436-441. |
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| Authors: | WANG Junxing DU Shaolei CHEN Liqiang WANG Ruifeng |
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| Affiliation: | (State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University,Wuhan 430072,China) |
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| Abstract: | Fluctuating pressure will intensify cavitation or cavitation erosion in gate slot and increase the loads on soleplate of the stepped discharge chute.There are few studies relating to it at present.Testing methods and data processing of fluctuating pressure in large scale model test on project of emptying tunnel of Kajiwa hydropower station are introduced.Fluctuating pressure intensity,fluctuating,pressure coefficient and spectrum characteristics of water flow are studied.Water pressure fluctuation characteristics and distribution in working gate slot and stepped discharge chute are obtained.These achievements are valuable for design and safe operation. |
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| Keywords: | emptying tunnel fluctuating pressure model test gate slot stepped discharge chute |
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