摘要
低水头消能工常常存在水流佛氏数小、消能效率低等问题,为此常在底流消力池中添加辅助消能工以求达到良好的消能效果。国内外常用的低佛氏底流消力池有USBR-Ⅳ型、ISI型、SAF型和T型等4种型式。文章采用k-ε方程紊流模型并结合VOF追踪自由水面法,通过数值模拟对上述池型各自的消能效果、流态分布、工程造价等方面进行对比研究,以期为工程设计提供科学有效的理论支撑和参考。
Most energy dissipators of low water-head have problems such as small Froude number and low dissipation rate, so some auxiliary energy dissipators are generally applied to stilling basins to get better results of energy dissipation. The four widely-used types of stilling basins are USBR-IV type, ISI type, SAF type and T type. In this paper, the k-ε equation turbulence model and the volume of fluid（VOF） method are used to track the free surface. The effects of energy dissipation, flow pattern distribution, and construction costs of the above-mentioned types of stilling basins are compared by numerical simulation so as to provide scientific and practical support for engineering design.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
北大核心
2011年第3期408-411,428,共5页
Journal of Hefei University of Technology：Natural Science
基金
安徽省水利水电勘测设计院技术开发项目(10-453)
关键词
低水头消能工
辅助消能工
低佛氏数
数值模拟
energy dissipator of low water-head
auxiliary energy dissipator
low Froude number
numerical simulation
