船闸阀门后廊道突扩体型阻力系数研究

Study on Resistance Coefficient of the Culvert Sudden Enlargement Type Behind the Valve in Ship Lock

在局部模型上，对阀门后廊道不同的突扩方向、突扩比、突扩起点的阀门段阻力系数ξｖｎ进行了研究，并建立了适用范围较大的经验计算式．可供教学、科研及工程设计人员参考．

Based on local model experiment,the resistance coefficient ξ vn on valve section under the variant sudden enlargement direction、ratio、initial point behind the valve in flush gallery is studied,and we establish a widely applying range emprical calculated formula,which can be referred to by people engaged in education,research and project designing.