Comparison of the H2OMAP SWMM Hazen Williams Force Main Solution to a Steady State HW Solution
Note: Comparison of the H2OMAP SWMM Hazen Williams Force Main Solution to a Steady State HW Solution Comparison of the H2OMAP SWMM5 Hazen Williams Force Main Solution to a HW Solution by dickinsonre Note: Comparison of the H2OMAP SWMM Hazen Williams Force Main Solution to a HW Solution In this example, we compare the force main head loss in four links in H20Map SWMM to the head loss in a steady state Hazen Williams s olution for the same length pipe, diameter and flow (Figure 1). The H2OMap SWMM model has a large constant dry weather inflow at the wet wells which floods the wet well and causes a constant pump flow to the force main (Figure 2). The HW calculator is located here http://www. engineeringtoolbox.com/ william-hazens-equation-d_645. h...