Showing posts with label Link Surcharging Definitions in SWMM 5. Show all posts
Showing posts with label Link Surcharging Definitions in SWMM 5. Show all posts

Saturday, December 18, 2010

Link Surcharging Definitions in SWMM 5

Subject: Link Surcharging Definitions in SWMM 5

The report or RPT text output file of SWMM 5 contains a table that lists the Surcharged Conduits during the simulation (Figure 1).
The 5 columns in the table are:
  1. Hours Both Ends Surcharged
  2. Hours Upstream End Surcharged
  3. Hours Downstream End Surcharged
  4. Hours Above Full Normal Flow
  5. Hours Capacity Limited
.the five columns are defined in Figure 2. Notice that if the midpoint of the link is full then the link and both end of the link are considered to be surcharged. If the midpoint is NOT full then the cross sectional area of the ends of the link determine wheter the ends of the link are considered surcharged. The end of a link can be considered surcharged based on either the depth at the midpoint or the cross sectional area at the end of the link.

Figure 1: The SWMM 5 Conduit Surcharge Table

Figure 2: The SWMM 5 Conduit Surcharge Table Definitions, the numbers in the 3rd column correspond to the columns in the Conduit Surcharge Table.

Today is day 356 or 97.5 percent of the year 2024

English: Today is day 356 or 97.5 percent of the year 2024 Mandarin Chinese: 今天是2024年的第356天,即97.5% Hindi: आज 2024 का 356वां दिन या 97.5 प्रत...