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How do I get the piezometric head ( pressure + elevation head) of the nodes in the result of SWMM 5? Is there options for this or something has to be implemented in the source code of SWMM5 ?  Please throw some light in this regard.

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  • You will have to add v^2/2g as another term in the engine of SWMM 5.  If would probably be easiest to change LINK_DEPTH as the links have velocity and not the NODEs>

    for example,

     LINK_DEPTH = LINK_DEPTH + 1/2 Upstream Invert + 1/2 Downstream Invert + Velocity^2/2g

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