Is there anyone knows EPA SWMM?? 2

[DrainageEnthusiast]

First of all, I'm practicing hydraulics for quite a few months now. Only recently I had a hard time doing calculations manually or in an excel spreadsheet. I need to calculate or check the HGL or EGL of my storm water system that uses circular pipes and box culverts in a very large network.(i.e. 4km in length with branches that ranges from 500 meter to 1 km in about 22 sq.-km drainage area; yes in SI units)
They say EPA SWMM is capable of calculating the HGL of a large network, section by section, from upstream to downstream outlet. Is that true?
I tried going thru the tutorial and help guide but I couldn't find that it actually does what it says.
When I tried to profile it, I can't see the HGL.
Can anyone help me out?
Thanks in advance.

 

[SMIAH]

Click on "profile plot"

Then select start node and end node (then click on find path) then "ok".
The run simulation.
Map and animation tool.

IMO, EPA SWMM us a good free software.

 

[beej67]

EPA SWMM is not always the friendliest outputs for reviewers, but it's a very powerful and very comprehensive piece of software.

Hydrology, Drainage Analysis, Flood Studies, and Complex Stormwater Litigation for Atlanta and the South East -

http://www.campbellcivil.com

 

[DrainageEnthusiast]

Okay thanks for the response. However, it seems I'm gonna need to read again the tutorial. I can't understand how the Map animator works and also the choices in Themes (subcatchments,Nodes,links and how it relates to the layout) and time period. I can't identify the "head" (I suppose that's the HGL)in the animator once I play it..it doesn't do anything.
Theme
Subcatchment: Area
Nodes: Head? Is this correct?
Links: Depth or what?
Time Period
Date?
Time of Day?
Elapsed Time?
I think the time is with regards to the duration I input in the time series....am I correct?

I don't know how to call it but the input choices...I'm worried there might be something wrong or I didn't chose the right one for the simulation to run correctly and give me correct results. But it does say the run was successful. I guess I have to trust that, don't you think?

 

[DrainageEnthusiast]

I guess so, because some of my colleagues are saying the same thing...it's a very good hydraulic software. But none of them have the time to explain and train me comprehensively how to use it. We are all busy right now. So I have to teach myself how to use it by reading the tutorial. The only word I remember in the end was HAPPY SWMMING!

 

[elev8848]

DrainageR,
Most tutorial starts with complexity.

To explain SWMM5, I start with the simplest network possible. Two tanks connected with one pipe, and one outfall.
Try to run it and then try to understand it, and try to manipulate it. Thanks

[TITLE]

[OPTIONS]
FLOW_UNITS CFS
INFILTRATION HORTON
FLOW_ROUTING DYNWAVE
START_DATE 09/26/2011
START_TIME 00:00:00
REPORT_START_DATE 09/26/2011
REPORT_START_TIME 00:00:00
END_DATE 09/27/2011
END_TIME 06:00:00
SWEEP_START 01/01
SWEEP_END 12/31
DRY_DAYS 0
REPORT_STEP 00:15:00
WET_STEP 00:05:00
DRY_STEP 01:00:00
ROUTING_STEP 0:00:30
ALLOW_PONDING NO
INERTIAL_DAMPING PARTIAL
VARIABLE_STEP 0.75
LENGTHENING_STEP 0
MIN_SURFAREA 0
NORMAL_FLOW_LIMITED BOTH
SKIP_STEADY_STATE NO
FORCE_MAIN_EQUATION H-W
LINK_OFFSETS DEPTH
MIN_SLOPE 0

[EVAPORATION]
;;Type Parameters
;;---------- ----------
CONSTANT 0.0
DRY_ONLY NO

[OUTFALLS]
;; Invert Outfall Stage/Table Tide
;;Name Elev. Type Time Series Gate
;;-------------- ---------- ---------- ---------------- ----
3 100 FREE NO

[STORAGE]
;; Invert Max. Init. Storage Curve Ponded Evap.
;;Name Elev. Depth Depth Curve Params Area Frac. Infiltration Parameters
;;-------------- -------- -------- -------- ---------- -------- -------- -------- -------- -------- -----------------------
1 100 10 10 FUNCTIONAL 10000 0 0 0 0
2 100 10 0 FUNCTIONAL 10000 0 0 0 0

[CONDUITS]
;; Inlet Outlet Manning Inlet Outlet Init. Max.
;;Name Node Node Length N Offset Offset Flow Flow
;;-------------- ---------------- ---------------- ---------- ---------- ---------- ---------- ---------- ----------
1 1 2 100 0.01 0 0 0 0
2 2 3 100 0.01 3 3 0 0

[XSECTIONS]
;;Link Shape Geom1 Geom2 Geom3 Geom4 Barrels
;;-------------- ------------ ---------------- ---------- ---------- ---------- ----------
1 CIRCULAR 1 0 0 0 1
2 CIRCULAR 1 0 0 0 1

[LOSSES]
;;Link Inlet Outlet Average Flap Gate
;;-------------- ---------- ---------- ---------- ----------

[INFLOWS]
;; Param Units Scale Baseline Baseline
;;Node Parameter Time Series Type Factor Factor Value Pattern
;;-------------- ---------------- ---------------- -------- -------- -------- -------- --------
1 FLOW "" FLOW 1.0 1.0 0

[REPORT]
INPUT NO
CONTROLS NO
SUBCATCHMENTS ALL
NODES ALL
LINKS ALL

[TAGS]

[MAP]
DIMENSIONS 0.000 0.000 10000.000 10000.000
Units None

[COORDINATES]
;;Node X-Coord Y-Coord
;;-------------- ------------------ ------------------
3 777.672 5534.351
1 -1312.023 7099.237
2 777.672 7099.237

[VERTICES]
;;Link X-Coord Y-Coord
;;-------------- ------------------ ------------------