‘Hydro’ is a purpose written, hydraulic design program modelled on differential calculus for non-uniform flow in open channels. The program was further refined with empirical data, following a series of experiments modelling lateral intake into trenches. Analysis of the effect of slope, run length, and trench cross sectional profiles were incorporated into the program.

Complex scenarios such as the effects of water inflow from downpipes or inlets along the length of the trench can also be modelled by the ‘Hydro’ program. ACO can use ‘Hydro’ to recommend optimum outlet positions along trench runs.

To generate results from the ‘Hydro’ program, the following information is required:

	Length of trench run (metres)
	Length and width of catchment area (metres)
	Surrounding pavement/surface type, e.g., concrete, asphalt, etc.
	Rainfall intensity (mm/hr)
	Ground fall along trench (%)
	Perpendicular approach slopes to trench (%)
	Preferred position of outlets along trench and any outlet size restrictions
	Any slab depth restrictions

Results are provided either electronically (PDF) and/or in printout format.

To request this service, click here.