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Male

"The Froude Number used to be shown on the SWMM5 Graphs but was taken out in Build 5.1.001 (3/24/2014)

"The link Froude number view variable has been replaced with the link's flow volume, the subcatchment Losses variable has been replaced by two new…"

"The link Froude number view variable has been replaced with the link's flow volume, the subcatchment Losses variable has been replaced by two new…"

"Hello Claudio,

All seems reasonable in your model network but did you make sure that the surcharge depth in the node downstream of the type 3 pump is large enough? Is your pump on the pump curve? You can check this by looking at the SWMM5 pump…"

All seems reasonable in your model network but did you make sure that the surcharge depth in the node downstream of the type 3 pump is large enough? Is your pump on the pump curve? You can check this by looking at the SWMM5 pump…"

"so that I can learn it and open it to swmm, let it be sent via email."

"[TITLE] Example 1 of Extran Manual modified as dual_drainage.in

[OPTIONS] FLOW_UNITS CFS INFILTRATION HORTON FLOW_ROUTING DYNWAVE START_DATE 01/01/2002 START_TIME 00:00:00 REPORT_START_DATE 01/01/2002 REPORT_START_TIME 00:00:00 END_DATE 01/01/2002…"

[OPTIONS] FLOW_UNITS CFS INFILTRATION HORTON FLOW_ROUTING DYNWAVE START_DATE 01/01/2002 START_TIME 00:00:00 REPORT_START_DATE 01/01/2002 REPORT_START_TIME 00:00:00 END_DATE 01/01/2002…"

"could you give me file in dual_drainage.inp

thank you"

thank you"

## Comments

Here is an example http://www.swmm5.net/2010/12/pid-control-in-swmm-5-for-type-3-pump....

I would suggest doing a sensitivity analysis for each of the three components for your particular weir to see the effect of each of the components.

Do you mean a PID Control for a Weir?

Subject:PID Control in SWMM 5 for a WeirThe blog http://swmm5.blogspot.com/2010/12/pid-control-in-swmm-5-for-type-3-... describes theFunction getPIDSetting which returns the PID setting at each time step. The PID parameter set contains three values -- a proportional gain coefficient, an integral time (in minutes), and a derivative time (in minutes) which are kp, ki and kd, respectively. More about the theory of PID controllers can be found at http://en.wikipedia.org/wiki/PID_controller.

Here is an example PID Rule that will keep the node depth at 3 feet in a SWMM 5 model by changing the Weir Setting. The example file is attached in this blog. In this particular example, you can reduce the oscillations about the 3 foot rule level by lowering the integral time and derivative time coefficients in the PID control rule.

RULE PID_Weir

; the PID controller adjusts the weir height to have a

; depth of 3 feet in Node 82309e

IF NODE 82309c DEPTH <> 3

THEN WEIR WEIR1@82309c-15009c SETTING = PID 10 -.01 -.01

; kp ki kd

PRIORITY 1

Hi Lalit, I would be better that you post a comment instead of a status update, i see those faster.