manning formula

The author gives a detailed analysis about automatical collection for underground open channel flow and pipeline flow. Parshall flume and Manning formula are studied for open channel flow. 3.

对井下明渠流量自动采集与管道流量自动采集进行了详细的阐述，对于明渠流量自动采集主要研究了其中的巴歇尔槽和曼宁公式。

An Application of Manning Formula in Shallow and Wide River

曼宁公式在宽浅型河流中的应用

Manning formula has been widely accepted for hydraulic calculation of open channel conduits in hydraulic engineering and water and wastewater works as well.

曼宁公式在给水排水工程和水利工程中进行明渠水力计算时是普遍采用的计算公式。

Based on the assumption that the flow surface is an exponential curve, the Manning formula is applied to deduce the equation expressing the advance process of the irrigation water flow in ditches.

根据水流水面线为幂函数曲线假定用满宁水流公式，推求了水流在畦田推进过程的表达式。

Considerable error may occur to the calculation of flow capacity for channels with compound cross section by means of Manning formula, when flood is out-of-bank and flooding of plain is happened.

复式河槽在洪水漫滩后，直接运用曼宁方程计算过流能力将带来很大误差。

On Application of Manning formula for torrential current

曼宁公式应用在急变流的探讨

Based on the field surface shallow flow experiments, the roughness coefficient value ( n) on different land have been quantitatively demonstrated by changed Manning Formula in this pa-per.

在野外小区径流实验基础上，通过经转换的曼宁公式，对不同坡地地表的糙率系数n值进行了定量研究。