Starting from Version 6.6, HEC-RAS is able to model stormwater pipe networks including conduits (pipes) and nodes (manholes or inlets). By coupling stormwater pipe networks with HEC-RAS 2D surface, modelers…
Starting from Version 6.6, HEC-RAS is able to model stormwater pipe networks including conduits (pipes) and nodes (manholes or inlets). By coupling stormwater pipe networks with HEC-RAS 2D surface, modelers…
A previous post about how to model a pump station can be found here and this post is about how to model a force main on the discharge side of…
Head Losses (or energy losses) associated with conduits in a storm sewer system include pipe friction losses and minor losses. Pipe friction losses are normally solved by Manning’s equation, while…
SCS Curve Number (CN) method, proposed by USDA Soil Conservation Service (SCS, now known as NRCS), has been widely used for infiltration loss and runoff calculation due to its simplicity…
Unit hydrograph transform method for precipitation-runoff process is widely used by many H&H modeling tools, but EPA SWMM has its own method known as nonlinear reservoir runoff method which treats…