水利明渠均匀流施工设计

Construction design of open channel flow in water conservancy

明渠中水流的运动要素不随时间而变化时,称为明渠恒定流;否则称为明渠非恒定流。明渠恒定流中,如果水流流线是一簇平行的直线,且水深、断面平均流速沿程不变,称为明渠恒定均匀流;如果流线不是平行直线,则称为明渠恒定非均匀流。

The open channel flow motion element does not change over time,it is called a constant open channel flow;otherwise known as open channel flow.Constant open channel flow,if the water flow is a cluster of parallel straight lines,and the water depth,average velocity change along the way,is called a constant uniform open channel flow;if the stream lines are not parallel to the straight line,it is called a constant non-uniform open channel flow.