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Mmajner
February 11, 2016, 02:12 PM
After running a scenario some of the pipes appear to be flowing in the wrong direction. In the attribute output section the flow direction says reverse. What are some issues that could cause this that I can look at. The pipes are drawn in the correct direction the flow after the scenario is what seems to be an issue.

Patrick Moore
February 12, 2016, 07:25 AM
Martin,

The flow direction is based on the direction the pipe was drawn in the model. If a pipe flow is showing as "reverse" it simply means flow is in the opposite direction in which the pipe was drawn. In most cases this is generally not a concern unless the expected flow is in the direction the pipe was drawn.

In the model pipe flows from higher head to lower head, so if a pipe is flowing in a different direction that is expected, check the head values on both sides of the pipe and investigate the elements controlling the head on both sides as that is what determines the direction of water flow in the pipe.

Patrick Moore