曼宁方程在线计算

分类: 经典物理水力计算 更新时间: 2016-10-06
评分:
Calculate Manning's Roughness Coefficient
Calculate Flow Velocity
Calculate Hydraulic Radius
Calculate Line Slope

Calculate Manning Roughness Coefficient

n = Manning's Roughness Coefficient
R = Hydraulic Radius
S = Line Slope
V = Flow Velocity

Enter your values


Calculate Flow Velocity

V = Flow Velocity
R = Hydraulic Radius
S = Line Slope
n = Manning's Roughness Coefficient

Enter your values


Calculate Hydraulic Radius

R = Hydraulic Radius
V = Flow Velocity
n = Manning s Roughness Coefficient
S = Line Slope

Enter your values


Calculate Line Slope

V = Flow Velocity
n = Manning's Roughness Coefficient
R = Hydraulic Radius
S = Line Slope

Enter your values

App说明

曼宁方程在线计算

有关糙率系数,流速,水力学半径,线的斜率的计算

选择相应单元并输入数值,点击”计算“。结果将显示。

计算公式

\(n=\frac {1.49×R^{0.66}×S^{0.5}}{V}\)

\(V=\frac {1.49×R^{0.66}×S^{0.5}}{n}\)

\(R=(\frac {V×n}{1.49×S^{0.5}})^\frac{1}{0.66}\)

\(S=(\frac {V×n}{1.49×R^{0.66}})^2\)

  • n---曼宁糙率系数
  • V---流速
  • R---水力学半径
  • S---线的斜率

使用示例

已知数据:水力学半径;线的斜率;流速,求曼宁糙率系数是多少。

输入数据:水力学半径:50英尺;线的斜率:0.5;流速:10英尺/秒

输出结果:曼宁糙率系数:1.39313

 

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