The Reynolds Number is not shown in SWMM 5 of InfoSWMM but can easily be added to the SWMM 5 code as shown in Figure 3. The equation for the Reynolds Number isNormally, as shown is Figure 1 the Reynolds number is is very high and is indicative of very turbulent flow based on typical flows, velocities and pipe diameters/hydraulic radius's in SWMM 5 (Figure 2).
Figure 1. Reynolds Number is calculated in SWMM 5 for Darcy-Weisbach Force Main Friction Loss, Typical values of the Reynolds Number. |
Figure 2. Reynolds Number is calculated in SWMM 5 for Darcy-Weisbach Force Main Friction Loss. Where is is the DW value entered for a Force Main. |
Figure 3. Reynolds Number is calculated in SWMM 5 for Darcy-Weisbach Force Main Friction Loss. |