# Month: March 2014

## SWMM 5.1 Update History Or Key Changes

SWMM 5.1 Update History
http://ift.tt/1gvQVbJ

———————–
Build 5.1.001
———————–

New Features:
=============
1.  SWMM can now read the new file format for precipitation
data retrieved online from NOAA-NCDC.

2.  A new choice of infiltration method, the Modified Horton
method, has been added. This method

## One Second View of a Pump Event in InfoSWMM / SWMM5

How does a pump turn on with a one second time step?
1. Pump On depth is reached in the Wet Well
2. The pump sees the head across the pump and calculates the flow from the pump curve
3. The head gain decreases after the pump turns on as

## SWMM 5 solution for the St Venant Equation and the Node Continuity Equation

I like the way the SWMM 5 solution for the St Venant Equation and the Node Continuity Equation is presented in this paper file:///D:/Downloads/swmm-paper-libre.pdf
It shows the major components of the SWMM5 solution (gravity, time, inertial, friction and entrance/other and exit losses) and the connection between Storage Area of

## The Minimum Surface Area in SWMM 5 – Meaning and Usage

The Minimum Surface Area in SWMM 5 – Meaning and Usage

The minimum surface area in SWMM 5 is intended for manholes that have a gap between the Node Invert Elevation and the Lowest Connecting Link Invert but it also has other uses in simulation.  If there is a gap

## Minimum Drop for a Link in SWMM 5

I wanted to discuss a slightly hidden feature of SWMM 5 that has a definite impact on flat or links with zero slope.  SWMM5 uses an internal unit system based on feet and cfs even though externally you can use SI units.  There is a minimum conduit drop between the

## How do you export a time series from SWMM 5?

How do you export a time series from SWMM 5?  One easy way is to graph the runoff or link flow (bullet 1 in Figure 1), use the command Edit/Copy To (bullet 2 in Figure 1), Copy the Data to the Clipboard or File (bullet 3 in Figure 1) and

## Innovyze Debuts Integrated Catchment Modeling Sewer Edition

 Innovyze Debuts Integrated Catchment Modeling Sewer Edition
 New InfoWorks ICM SE Delivers Higher Levels of Productivity For Sanitary, Storm and Combined Sewer Modeling and Management
 Broomfield, Colorado, USA, March 4, 2014 — Innovyze, a leading global innovator of

## Box File Links for SWMM4 and SWMM5 Files

Here are the box file links for each section of the files loaded to Box.  I did not realize when I sent this up that the general public needed a link for each section.