阿尔塔什水利枢纽深孔工作弧门突扩突跌门槽体型试验研究
发布时间：2018-07-14 10:57
【摘要】：阿尔塔什水利枢纽是叶尔羌河流域内最大的控制性水库工程,工作弧门的门槽采用突扩突跌坎型式。该工作闸门运行水头高、过流流速大,存在较大的空化空蚀风险。以研究论证工程1#深孔出口工作弧门突扩突跌门槽体型的水力及空化特性为目标,通过减压模型试验,采用三种方案比较优化了突扩突跌门槽区的水流形态。试验结果表明,通过调整突扩后边墙扩散段的扩散角至1.273°,有效消减了下游边墙的水翅强度,门槽段的动水压力、水流空化特性均有明显的改善。提出的水流流态及抗空化特性较好的突扩突跌门槽体型,为今后高水头、大流量深孔工作弧门的门槽体型设计提供了经验和参考。
[Abstract]:The Altash Water Conservancy Project is the largest controlled reservoir project in the Yerqiang River basin. The gate groove of the working arc door adopts the type of sudden expansion and sudden fall. The operating head of the working gate is high, the flow velocity is high, and there is a great risk of cavitation erosion. In order to study and demonstrate the hydraulic and cavitation characteristics of the arc-gate suddenly expanding and falling trough at the exit of the deep hole of the engineering 1#, through the decompression model test, three schemes were adopted to compare and optimize the flow pattern in the region of the sudden expansion and falling gate. The experimental results show that by adjusting the diffusion angle to 1.273 掳, the water wing strength of the downstream wall, the hydrodynamic pressure of the gate groove and the cavitation characteristics of the water flow have been greatly improved by adjusting the diffusion angle of the diffusion section of the side wall after the sudden expansion to 1.273 掳. The flow state and cavitation resistance of the gate groove with good cavitation resistance are proposed, which provides experience and reference for the design of the gate groove with high water head and large flow rate working arc-gate with deep hole in the future.
【作者单位】： 新疆新华叶尔羌河流域水利水电开发有限公司;中国水利水电科学研究院;新疆水利水电勘测设计研究院;
【基金】：国家自然科学基金项目(51279216)
【分类号】：TV135.2
[Abstract]:The Altash Water Conservancy Project is the largest controlled reservoir project in the Yerqiang River basin. The gate groove of the working arc door adopts the type of sudden expansion and sudden fall. The operating head of the working gate is high, the flow velocity is high, and there is a great risk of cavitation erosion. In order to study and demonstrate the hydraulic and cavitation characteristics of the arc-gate suddenly expanding and falling trough at the exit of the deep hole of the engineering 1#, through the decompression model test, three schemes were adopted to compare and optimize the flow pattern in the region of the sudden expansion and falling gate. The experimental results show that by adjusting the diffusion angle to 1.273 掳, the water wing strength of the downstream wall, the hydrodynamic pressure of the gate groove and the cavitation characteristics of the water flow have been greatly improved by adjusting the diffusion angle of the diffusion section of the side wall after the sudden expansion to 1.273 掳. The flow state and cavitation resistance of the gate groove with good cavitation resistance are proposed, which provides experience and reference for the design of the gate groove with high water head and large flow rate working arc-gate with deep hole in the future.
【作者单位】： 新疆新华叶尔羌河流域水利水电开发有限公司;中国水利水电科学研究院;新疆水利水电勘测设计研究院;
【基金】：国家自然科学基金项目(51279216)
【分类号】：TV135.2
【参考文献】
相关期刊论文 前2条
1 聂孟喜;段冰;李琳琳;;泄水建筑物中突扩突跌体型侧墙上的水力特性[J];清华大学学报(自然科学版);2006年12期
2 时启燧,潘水波,邵Z朲，
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