Influences of flow rate and baffle spacing on hydraulic characteristics of a novel baffle dropshaft

• 作者: Chen-lu Zhou Hui Xu Jian Zhang Ting-yu Xu Xi-chen Wang Zong-fu Fu
• 来源期刊: 水科学与水工程
• 年，卷（期）: 2020,（3）
• 所属期刊栏目: Water Engineering
• 页码范围: 233-242
• 页数: 10页
• 语种: 英文

摘要

Due to limited flow capacity and the instability of the asymmetric structure of traditional baffle dropshafts, a novel baffle dropshaft with a symmetric structure, adopting the construction shield well directly, is proposed for large-range flow discharge in deep tunnel drainage systems. In this study, a two-phase flow field of the novel baffle dropshaft with three different baffle spacings was simulated at seven different flow rates with a three-dimensional (3D) numerical model verified with experiments, to study hydraulic characteristics of this novel baffle dropshaft. The results show that the novel baffle dropshaft has a remarkable energy dissipation effect. Baffle spacing of the novel baffle dropshaft has a greater effect on flow patterns and baffle pressure distributions than the comprehensive energy dissipation rate. Flow rate is a critical issue for the selection of baffle spacing in the design. Some guidance on baffle spacing selection and structure optimization for the application of this novel baffle dropshaft in deep tunnel drainage systems is proposed.

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	Xi-chen Wang		1	0	0.0	0.0
2	Jian Zhang		1	0	0.0	0.0
3	Zong-fu Fu		1	0	0.0	0.0
4	Hui Xu		1	0	0.0	0.0
5	Ting-yu Xu		1	0	0.0	0.0
6	Chen-lu Zhou		1	0	0.0	0.0