Showing posts with label RDII Intial Abstraction in SWMM 5. Show all posts
Showing posts with label RDII Intial Abstraction in SWMM 5. Show all posts

Sunday, July 31, 2011

RDII Intial Abstraction in SWMM 5

Subject:  RDII Initial Abstraction in SWMM 5

RDII Initial Abstraction in SWMM 5

by dickinsonre
Subject:  RDII Initial Abstraction in SWMM 5 
The initial abstraction in each of the three components of RDII in SWMM 5 are updated at each time step.  The initialabstraction (ia) is:
 ia = iaMax - iaUsed 
based on the maximum amount of ia, the ia used (iaUsed), the recovery rate (iaRecov) and the month and class of RDII.  You can enter a value for iaMax, iaInit and iaRecov for each month. 
 
The iaUsed at the beginning of the simulation is set equal to iaInit

and if there is no rainfall



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...