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突扩突跌体型侧墙负压区的演变特征
聂孟喜 ; 段冰 ; 李琳琳 ; NIE Meng-xi ; DUAN Bing ; LI Lin-lin
2010-06-10 ; 2010-06-10
关键词泄水建筑物 突扩突跌体型 建筑物侧墙 压力分布 负压区 等压线 discharge structure shape of sudden lateral enlargement and vertical drop sidewall of structure pressure distribution zone of negative pressure isobar TV135.2
其他题名Evolvement characteristics of zones of negative pressure along sidewall of discharge structure with a shape of sudden lateral enlargement and vertical drop
中文摘要针对突扩突跌体型泄水建筑物侧墙上呈现出的复杂水力特性,通过大比尺模型试验,测量了突扩突跌体型侧墙上的平面压力分布,绘制了侧墙等压线分布图,并对其分布特征及演变规律进行研究。结果表明,突扩突跌体型侧墙上存在呈椭圆形分布的负压区域,负压区的范围、负压值等随水头变化较大,但是负压区的中心位置具有相对稳定性,其相对稳定位置与侧空腔的长度有关。; The pressure distribution along the sidewall of a discharge structure with a shape of sudden lateral enlargement and vertical drop was measured through large scale model tests.The isobar distribution along the sidewall was plotted,and the characteristics of pressure distribution and its evolvement pattern were studied in detail.The results show that the zones of negative pressure are elliptically distributed along the sidewall,and that their range and the value of negative pressure fluctuate greatly with water head,while the center of the zones of negative pressure always keeps steady,which is related to the length of lateral cavity.; 国家自然科学基金资助项目(50479002)
语种中文 ; 中文
内容类型期刊论文
源URL[http://hdl.handle.net/123456789/59523]  
专题清华大学
推荐引用方式
GB/T 7714
聂孟喜,段冰,李琳琳,等. 突扩突跌体型侧墙负压区的演变特征[J],2010, 2010.
APA 聂孟喜,段冰,李琳琳,NIE Meng-xi,DUAN Bing,&LI Lin-lin.(2010).突扩突跌体型侧墙负压区的演变特征..
MLA 聂孟喜,et al."突扩突跌体型侧墙负压区的演变特征".(2010).
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