Irregular open channel
This refers to an open channel that has a cross-section that is not a simple trapezoidal, rectangular or triangular shape. The cross-section of such channels must be defined as a series of x-y coordinates, as shown below.
Closed conduits with unusual shapes can be modelled as irregular open channels defined by x-y coordinates and with a roof covering a small gap at the top.
Following a run, flowrates through a channel and water levels at its ends can be viewed in the Main Window. Options for displaying more detailed results are given in the Pop-Up (right mouse button) menu View Cross Sections provides a display showing the channel cross section and the peak water levels at each cross section entered. View maximum water level profile gives a longitudinal display of the profile.