Table 1 Correlation analysis for hydraulic parameters and flow discharges, slope gradients and gravel coverage degrees.

From: Effects of Simulated Gravel on Hydraulic Characteristics of Overland Flow Under Varying Flow Discharges, Slope Gradients and Gravel Coverage Degrees

 

u

h

Re

Fr

f

Q

0.716**

0.729**

0.989**

0.623**

−0.868**

J

0.674**

−0.678**

−0.008

0.699**

−0.038

Cr

−0.846**

0.774**

0.712**

−0.851**

0.962**

  1. Notes: N = 160, Cr = gravel coverage degree, Q = flow discharge, J = slope gradient, u = average velocity, h = mean depth, Re = Reynolds number, Fr = Froude number, and f = Darcy-Weisbach resistance coefficient.
  2. *P < 0.05 **P < 0.01.
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