Open Channel System with a Culvert and Bridge at Bowen- Queensland

Open Channel System with a Culvert and Bridge at Bowen- Queensland

The file for this example Bowen Channel + Stream Example - Lite & Full Unsteady.drn, is located in the folder C:\ProgramData\Drains among the Lite examples. If this folder is hidden, in File Explorer select the View tab and tick the Show Hidden Items box to make it visible.  

This example shows how DRAINS can calculate the afflux occurring at culverts and bridges, and determine water surface profiles along irregular channel sections. The system is shown below:      


With the Lite or Full Unsteady hydraulic models, only one cross-sections is specified for the irregular channel. For greater accuracy, the reach could be divided into segments, but this is not done here as the limit of five channels available with the demonstration version of DRAINS would be exceeded. The Lite and Full Unsteady hydraulic models give the same results for this system, since there are no overflow routes.



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