院报 ›› 2018, Vol. 35 ›› Issue (4): 81-83.DOI: 10.11988/ckyyb.20170060

• 水力学 • 上一篇    下一篇

洞塞间距对多级洞塞消能影响的数值模拟研究

张立新1, 梁蔚2, 艾万政3   

  1. 1. 北方民族大学 土木工程学院,银川 750021;
    2. 工程安全与灾害防治研究所,武汉 430010;
    3. 浙江海洋大学 港航学院,浙江 舟山 316022
  • 收稿日期:2017-01-16 出版日期:2018-04-01 发布日期:2018-04-16
  • 作者简介:张立新(1979-),男,辽宁葫芦岛人,副教授,博士,研究方向为水资源高效利用与边坡稳定性。E-mail:zhanglixin2004@163.com
  • 基金资助:
    宁夏回族自治区重点研发计划项目(2016KJHM126);宁夏高等学校科学研究项目(NGY2016166);北方民族大学校级重点科研项目(2015KJ12);宁夏回族自治区高等教育教学改革项目(NXJG2016058)

Numerical Simulation on the Effect of Distance Between Plugs on Multi-plug Energy Dissipation

ZHANG Li-xin1, LIANG Wei2, AI Wan-zheng3   

  1. 1.School of Civil Engineering, Beifang University of Nationalities, Yinchuan 750021,China;
    2.Engineering Safety and Disaster Prevention Department, Yangtze River Scientific Research Institute, Wuhan 430010 ,China;
    3. School of Port and Transportation Engineering,Zhejiang Ocean University, Zhoushan 316022,China
  • Received:2017-01-16 Online:2018-04-01 Published:2018-04-16

摘要: 对于多级洞塞泄洪洞而言,上下级洞塞之间的合理间距影响到洞塞消能能力的发挥,因此有必要研究多级洞塞中上下级洞塞之间的合理间距。采用数值模拟手段,研究了上下级洞塞之间的间距问题。研究结果表明,当孔径比在0.4~0.8范围内,只要上下级洞塞之间的间距达到5.7D以上,各级洞塞均能充分发挥各自的消能能力。研究结果可为多级洞塞设计提供参考。

关键词: 多级洞塞, 能量损失, 数值模拟, 合理间距, 消能能力

Abstract: The distance between upper plug and lower plug affects the energy dissipation capacity of multi-stage plug discharge tunnel. In the present paper, the reasonable distance between the upper plug and the lower plug in multi-stage plug discharge tunnel is researched by numerical simulations. Result shows that when the contraction ratio is in the scope of 0.4-0.8, a reasonable distance between upper plug and lower plug equal to or more than 5.7D would guarantee the full display of plugs in different stages.

Key words: multi-stage plug, energy loss, numerical simulation, reasonable distance, dissipation capacity

中图分类号: 

Baidu
map