摘要
用“附加动量”水跃理论分析齿墩与消力池联合应用的消能机理 ,用跃后水深、水跃长度或单宽水跃容积减少的百分数 ,估计新增消能设施的经济效益。并通过模型试验验证了消能的理论分析 ,计算了新增设施的消能量、跃后水深、水跃长度或单宽水跃容积减少的百分数。结果表明 :采用齿墩设施 ,可增进消力池的消能作用 ,并取得显著的经济效益 。
In this paper, the joint energy dissipation mechanism of stilling basin and dental kaffle-pier is analysed according to additional momentum hydraulic jump theory. The economic benefits of newly additional energy dissipation facilities are estimated in terms of the decreased percentage of the conjugate depth of hydraulic jump and length of jump or the volume of hydraulic jump per unit width. The theoretical analysis is verified by model test. Using the experimental data, the decreased percentages of conjugate depth, length of hydraulic jump or unit width hydraulic jump volume with the increased dissipated energy facilities are calculated. It is concluded that dental baffle-pier can increase energy dissipation rate of stilling basin and decrease engineering cost. The obvious economic benefits and the expected effect of additional momentum hydraulic jump theory are achieved.
出处
《长江科学院院报》
EI
CSCD
北大核心
2001年第2期11-14,18,共5页
Journal of Changjiang River Scientific Research Institute
关键词
齿墩
附加动量
消力池
消能机理
dental baffle pier
additional momentum
stilling basin
energy dissipation mechanism
