TUFLOW SWMM Tutorial M02: Difference between revisions

An Inlet Usage Layer defines the physical location of inlets to the pipe network. It also defines some of the site specific geometry, such as inlet type, street cross-section reference, surface inlet elevation, placement type (on-sag and on-grade). To reduce data entry requirements for this tutorial, a complete Inlet Usage Layer has been provided, '''swmm_iu_TS02_001'''. It includes a variety of on-sag and on-grade inlets. On-sag inlets are used in locations where the inlet is located in aan area of minimal longtudial slope. In this situation ponded surface water enters the pipe network. On-grade inlets are used where bypass flow is expected due to the inlet location being on a slope. For on-grade inlets, TUFLOW SWMM captures a percentage of the “approach flow” based on several factors including the total 2D approach flow, velocity and depth.<br>