Rainwater drainage 과 roof gutter sizing

Roof drainage 계산, gutter sizing, downpipe sizing 과 rainfall intensity data.

rainwaterdrainagesizing계산기

Overview

Engineering reference data for Rainwater Drainage and Roof Gutter Sizing in sanitary drainage.

$Q = \frac{1}{n} A R_h^{2/3} S^{1/2}$

Open channel flow.

$S = \frac{\Delta h}{L}$

Hydraulic gradient.