Vasslab

Slope Transition Lab

Explore how changes in bed slope, boundary water levels and discharge shift hydraulic control in open-channel flow.

Critical depth Normal depth

About this model

gradually varied flow

changes in bed levelchanges in channel width

Scientific basis

\[ \frac{dy}{dx}=\frac{S_0-S_f}{1-\mathrm{Fr}^2}, \qquad S_f=\frac{n^2Q^2}{A^2R^{4/3}} \]

  • Chow, V. T. (1959). Open-Channel Hydraulics. McGraw-Hill.
  • Henderson, F. M. (1966). Open Channel Flow. Macmillan.