【摘要】 通过研究分析，得到了影响单支孔阻力系数的有关参数．经物理模型系列试验，得出了在充水情况下，单支孔阻力系数ξ３与支孔几何参数ｈｐ／ｂ，γ／ｂ，Ｈ／ｂ；流速比ｖ１／ｖ３和支孔、廊道雷诺数之间的关系．从而提出计算支孔阻力系数ξ３及分流损失系数ξｗ的经验公式．更多还原

【Abstract】 By studying and analysing the results of model tests,the related factors which have effects on single port resistance coefficient are obtained.By conducting extensive hydraulic model tests to investigate the resistance coefficient of lock single port under filling operation,the relationship between single port resistance coefficient and its related factors(geometric parameter h p/b,r/b ,and H/b ),culvert to port velocity ratio( v 1/v 3 )and reynolds number of port culver flow is studied,and empirical formulas for single port resistance coefficient ξ 3 and also tributary loss coefficient are derived.更多还原