Table 4 Function relations between the Reynolds number (Re) and gravel coverage degree (Cr) and flow discharge(Q) under different conditions.

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

Cr

Equation

R2

NSE

n

 

Cr = 0%

\(Re=33.510{Q}^{0.999}\)

0.992

0.999

40

(14)

Cr ≠ 0%

\(Re=33.345{(1-Cr)}^{-0.819}{Q}^{0.994}\)

0.954

0.999

120

(15)

All slopes

\(Re=33.766{(1-Cr)}^{-0.760}{Q}^{0.995}\)

0.995

0.999

160

(16)

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