Aeration performance of triangular notch weirs at recirculating system

被引:18
作者
Baylar, A [1 ]
Bagatur, T
Tuna, A
机构
[1] Firat Univ, Dept Civil Engn, Elazig, Turkey
[2] Firat Univ, Dept Environm Engn, Elazig, Turkey
来源
WATER QUALITY RESEARCH JOURNAL OF CANADA | 2001年 / 36卷 / 01期
关键词
oxygen transfer; oxygen transfer efficiency; dissolved oxygen; aeration; triangular notch weirs;
D O I
10.2166/wqrj.2001.008
中图分类号
TV21 [水资源调查与水利规划];
学科分类号
081501 ;
摘要
An adequate supply of dissolved oxygen is essential for the survival of aquatic organisms. Hydraulic structures can increase dissolved oxygen levels by creating turbulent conditions, where small air bubbles are carried into the bulk of the flow. Plunging overfall jets from weirs at recirculating systems are a particular instance of this. This paper seeks triangular notch weirs having different weir angle (alpha) and how they affect the aeration performance. It is demonstrated that the aeration efficiency of a 90 degrees triangular notch weir is generally better than that of the other weirs.
引用
收藏
页码:121 / 132
页数:12
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