Hydraulic characteristics experiment on scouring sluice under relative submergence degree of large variable head Multi-objective optimization design for derricking gear's level displacement compensation system based on physical programming
大变幅相对淹没度下冲沙闸的水力特性试验基于物理规划的变幅机构水平位移补偿系统的多目标优化设计
the submergence ratio(σ_s) has a good correlation with the relative water head difference between upstream and downstream ( z_1-z_2)/ h_s or ( z_s-z_c)/ h_s. the correlation degree increases with the decrease of the contraction ratio ε.
淹没系数σs与上下游水位差相对值(z1-z2)/Hs和(zs-zc)/Hs之间存在很好的相关性,相关程度随收缩比ε的减小而增大。
The discharge coefficient decreased as the relative degree of submergence increased at the submerged discharge.
在淹没出流工况下,流量系数随着相对淹没度的增大而减小.
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