| 一种新型掺气型旋流竖井的试验研究 |
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| 引用本文： | 雷刚,张建民,谢金元,许唯临,陈剑刚,任雨.一种新型掺气型旋流竖井的试验研究[J].水力发电学报,2011,30(5). |
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| 作者姓名： | 雷刚 张建民 谢金元 许唯临 陈剑刚 任雨 |
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| 作者单位： | 1. 四川大学水力学与山区河流开发保护国家重点实验室,成都,610065
2. 中国水电顾问集团成都勘测设计研究院,成都,610072 |
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| 基金项目： | 教育部科学技术研究重点项目(2008108111); 国家重点基础研究发展计算(973计划)(2007CB714105); 新世纪人才支持计划(NCET-08-0378) |
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| 摘 要： | 传统旋流竖井泄洪洞在高水头大流量情况运行时,竖井内出现壁面掺气不足,将可能发生空化空蚀破坏影响泄洪建筑物的安全运行。本文提出了一种新型掺气型旋流竖井体型——双涡室掺气型旋流竖井。试验表明：该体型竖井内水流流态更加稳定,掺气更明显,空蚀特性得到明显改善,并增加了消能效果,而且结构更稳定,保证了旋流竖井泄洪洞的泄洪安全。
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| 关 键 词： | 水力学 旋流竖井 双涡室 试验研究 掺气 空化空蚀 水力特性 |
Experimental study on hydraulic characteristic of the flow in a novel vortex shaft with aeration |
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| LEI Gang,ZHANG Jianmin,XIE Jinyuan,XU Weilin,CHEN Jiangang,REN Yu.Experimental study on hydraulic characteristic of the flow in a novel vortex shaft with aeration[J].Journal of Hydroelectric Engineering,2011,30(5). |
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| Authors: | LEI Gang ZHANG Jianmin XIE Jinyuan XU Weilin CHEN Jiangang REN Yu |
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| Affiliation: | LEI Gang1,ZHANG Jianmin1,XIE Jinyuan2,XU Weilin1,CHEN Jiangang1,REN Yu1(1.State Key Laboratory and Mountain River Engineering,Sichuan University,Chengdu 610065,2.Hydro China Chengdu Engineering Corporation,Chengdu 610072) |
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| Abstract: | Traditional vortex shaft applied in condition of high head and large discharge,the wall of which can be damaged by resulting in cavitations due to a lack of aeration.In this paper,a novel type of vortex shaft,named as double volute chamber vortex shaft with aeration,was presented.Results showed that there are more stable flow pattern and more obvious aeration phenomenon in new designed geometry.Therefore,cavitations characteristics are improved significantly,and these increase the energy dissipation.Securit... |
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| Keywords: | hydraulics vortex shaft double volute chamber experimental study aeration cavitations hydraulic characteristics |
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