How is Capillary Suction Head Used in SWMM 5 Green-Ampt?

Subject: How is Capillary Suction Head Used in SWMM 5 Green-Ampt?

How sensitive is the infiltration loss and rate to the capillary suction head parameter in the SWMM 5 Green-Ampt infiltration method. Figure 1 shows how the total infiltration l

Started by Robert Dickinson in Hydrology

0 Replies

How does the Infiltration Maximum Time to Drain the Upper Soil Zone Work in SWMM 5 Green Ampt?

Subject: How does the Infiltration Maximum Time to Drain the Upper Soil Zone Work in SWMM 5 Green Ampt?

You can use the monthly soil recovery factor (Figure 1) in SWMM 5 to change how the Infiltration Maximum Time to Drain the Upper Soil Zone (Figu

Started by Robert Dickinson in Hydrology

0 Replies

Exponential Washoff

Hi,

I wondering to understand the equation of "Exponential Washoff".

W=C1*q^C2*B

where C 1 = washoff coefficient, C 2 = washoff exponent, q = runoff rate per unit area ( mm/hour), and B = pollutant buildup in mass units (User's Manual Version 5.0)

The

Started by Amélie Thériault in Water Quality

3 Replies · Reply by Amélie Thériault Jul 12, 2012

I am getting Flow Routing more then 70% difference, and I can't figure why. Could someone please take a look at my model and see is someone can figure it why? In some node there is a difference of almost 1000%, which is crazy.

Also, what would

Started by Vasenjka

5 Replies · Reply by Vasenjka Jun 19, 2012

How to Use the H2OMAP SWMM Calibrator for RTK Calibration

Subject: How to Use the H2OMAP SWMM Calibrator for RTK Calibration

Step 1. Initial Guess of the RTK data as the start of the Messy Genetic Algorithm process

Step 2. Use Min and Max Bounds of 50 and 150 Respectively and Apply the Solutio

Started by Robert Dickinson in InfoSWMM

3 Replies · Reply by Ross Volkwein Jul 18, 2013

How is the Soil Saturated Conductivity Used in SWMM 5 Green-Ampt?

Subject: How is the Soil Saturated Conductivity Used in SWMM 5 Green-Ampt?

How sensitive is the infiltration loss and rate to the Soil Saturated Conductivity parameter in the SWMM 5 Green-Ampt infiltration method (Figure 1). Figure 2 shows how

Started by Robert Dickinson in Hydrology

0 Replies

Exporting output data to Excel

Can anyone tell me how to export SWMM's simulation output data to Excel? It appears SWMM won't allow copying and pasting from the output data tables in to another program.

An example of the information I am trying to export is in a screenshot below

Started by Tobi Reid in SWMM5 GUI

4 Replies · Reply by Robert Dickinson Apr 16, 2013

Peak Flows After Reopening an Orifice.

Hello Members,
In this network network_00.zip, the orifice is closed and then reopened. The very moment it is reopened, you observe that there is a sudden peak raise in the flow through it. I would attribute this peak to;

water surging, but this peak l

Started by Asaph Mercy Kabaasha in SWMM 5 RTC

2 Replies · Reply by Robert Dickinson Jan 13, 2012

Controlling flows to storage tanks

Hi,

I am looking for a way of controlling flows to storage tanks.(Assuming Tank 6 as an online detention tank)

I want to stop the flow from Tank 7 to Tank 6 (vis R13 orifice) once the water depth at Tank 6 reaches to 8.26 m.

Not sure that I have done it

Started by Upaka

3 Replies · Reply by Upaka Jan 20, 2012

Innovyze Announcements

Upcoming Conferences, User Groups, Seminars and Webinars

In the coming months Innovyze will be running a range of events world-wide that we believe will greatly benefit you as an existing or potential user of our software solutio

Started by Robert Dickinson in Innovyze

59 Replies · Reply by Robert Dickinson Feb 21, 2014

Newbie question - importing precipitation files

I've tooled around the forum for a while, but if there are easy hits on this topic they're eluding me.

All I want to know (for now, at least) is where to find and how to import precipitation data into SWMM5 for a rain gage.

I've downloaded files from t

Started by Derek Schilling

4 Replies · Reply by Robert Dickinson Feb 13, 2012

surcharge flow in SWMM 5

i'm trying to find out, how works the surcharge flow in SWMM 5. Another programm (like Infoworks) use preissmann slot to simulate Surcharge flow in closed coduit. which approach is accurate? Could you give me some informations about this, robert? tha

Started by Zhao Chen

37 Replies · Reply by Robert Dickinson Dec 4, 2012

Aquifer in SWMM 5

I am trying to use SWMM 5 to calculate the ground water flow in my model. In the aquifer portion, it's required to input conductivity slope and tension slope. Robert, would you please advice me on how I can get these two data? thanks a lot!!

Started by Zhao Chen in Hydrology

0 Replies

Rain off modeling

I am trying to model rain off structure like parallel spillway before WWTP (actually, it goes to sewer network but it's the same).

I am using weir (is it correct - Sideflow option??? ), and would like to add dimension of straight weir and of whole st

Started by Vasenjka

4 Replies · Reply by Vasenjka Jun 1, 2012

Forced main

Hello!

I am trying to model system:

Storage unit (el 100.00), pump, and then forced main and then some outlet (el 104.00) where pipeline connects on gravity sewer system. Slope is always adverse so I am using Dynamic wave.

I started with storage unit, t

Started by Vasenjka in Hydraulics

4 Replies · Reply by Vasenjka Apr 30, 2012

NASA - Perpetual Ocean

Perpetual Ocean

March 27, 2012 to Mapping • Add Comment • Share on Twitter

Using a computational model called Estimating the Circulation and Climate of the Ocean, Phase II (ECCO2), the NASA Goddard Space Flight Center Scientific Visualizat

Started by Robert Dickinson in Tools

3 Replies · Reply by Robert Dickinson Nov 9, 2012

10,000+ subcatchments to be assigned with outlets

Hi experts,

I am to assign outlet to some 10,000 sub catchments, manually doing it doesn't seem professional.

Luckily, name of subcatchment is same name of junction (outlet)

i.e.

Subcatcment Junction

177119 177119

177123

Started by Kashif Ali

8 Replies · Reply by Kashif Ali Feb 24, 2012

Divider

Hi!

Can you tell me how to deal with the fact that it's impossible to model divider under dynamic wave; only with kinematic, but that brings problem of more then one outlet or adverse slope?

Problem is quite simple - flow above 5 lps (per example) shou

Started by Vasenjka

5 Replies · Reply by Vasenjka Jan 28, 2012

How is the St Venant Equation Solved for in the Dynamic Wave Solution of SWMM 5?

Subject: How is the St Venant Equation Solved for in the Dynamic Wave Solution of SWMM 5?

An explanation of the four St. Venant Terms in SWMM 5 and how they change for Gravity Mains and Force Mains. The HGL is the water surface elevation in the u

Started by Robert Dickinson in Hydraulics

3 Replies · Reply by Robert Dickinson May 15, 2013

Hazem Williams coefficient

Hello:

I want to know by Dynamic Wave Modeling, in forced conduction wich H-W coefficient is asigned to the conduits?

Thanks!

Started by Gimena Carolina Da Cunha

4 Replies · Reply by Gimena Carolina Da Cunha Mar 15, 2012

All Forums

All Discussions (425)

How is Capillary Suction Head Used in SWMM 5 Green-Ampt?

How does the Infiltration Maximum Time to Drain the Upper Soil Zone Work in SWMM 5 Green Ampt?

Exponential Washoff

Flow routing

How to Use the H2OMAP SWMM Calibrator for RTK Calibration

How is the Soil Saturated Conductivity Used in SWMM 5 Green-Ampt?

Exporting output data to Excel

Peak Flows After Reopening an Orifice.

Controlling flows to storage tanks

Innovyze Announcements

Newbie question - importing precipitation files

surcharge flow in SWMM 5

Aquifer in SWMM 5

Rain off modeling

Forced main

NASA - Perpetual Ocean

Perpetual Ocean

10,000+ subcatchments to be assigned with outlets

Divider

How is the St Venant Equation Solved for in the Dynamic Wave Solution of SWMM 5?

Hazem Williams coefficient

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