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How to Count Courant Number
Siti Sulistiana
I make modelling OpenFlows 2D that have DT = 4, dx = 33 m, and Max Depth= 20.438 m. Why the courant number show up like this? what it must sum of CFL axis-x and CFL axis-y? Best Regard Thank You
Answered
23 days ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
Batch Merge Hydrants to Nearby Junctions in WaterCAD
Chris Marschinke
In WaterCAD, I imported a set of two shapefiles from GIS using ModelBuilder. The first shapefile was the general layout of a watermain with the pipe lengths and pipe diameters. For this model, I opted for modelbuilder to automatically create nodes. After…
2 months ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
WaterCAD UDF Flushing simulations velocity
Robert Zhang
When running WaterCAD UDF Flushing simulations, when I isolate out a pipe section in the network, why do other pipes in the network still have flow even though there is theoretically no source?
4 months ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
Very high flow rates in a downstream pipe connecting two tanks.
Yiannis Tsiortos
Hello , I am simulating a large area whose zones communicate through tanks. So i have 10 pipes connecting tanks. The problem i face is that the flow in these pipes cause of the altitude differences is very high, not corresponding to the demand of…
Answered
4 months ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
Hydraulic Analysis on Agriculture Irrigation System
Ivor Maasin
I have a short agricultural irrigation system (a main) that provides water to farmers. The head of the system is a canal with a structure that provides a constant head of water elevation during the season. There is no pump to deliver water to the customers…
4 months ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
Reverse Flow through a PRV-5
Mark Medina
I am having some trouble with model. At first, I was getting an unbalanced system. I did the walkthrough on how to check and fix an unbalanced system. We updated the controls, elevations, and pump curves. Right now the Model is getting three errors…
5 months ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
How to perform Demand Driven Analysis?
Abhishek Verma
Please Explain with Full Example.
5 months ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
How to perform gravity driven analysis in watergems?
Abhishek Verma
How to design a network based on gravity driven analysis. Basically pipe should be in partial flow.
5 months ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
ERROR: Instability in THOMAS3D - ModuleFunctions - ERR10
Siti Sulistiana
Hello I'm trying to make coastal modelling and I'm used nested method by multiple to simulation this model, but while running the simulation there is error. It said that simulation is instability. Is the bathymetry too shallow or can it not be nested…
Answered
6 months ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
FATAL; INTERNAL; Verify_Numerical_Options - Hydrodynamic - ERR20..
Siti Sulistiana
Hello, I've tried to set up modules hydrodynamic, but this message error come up while running simulation. Can you help me to fix this error?
7 months ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
WRITTEN_BY_PROPERTY_GRID : 0 or 1
Siti Sulistiana
Hello, I'm just wondering what it is mean 'WRITTEN_BY_PROPERTY_GRID : 0 or 1' ?
Answered
7 months ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
forrtl: warning (528): IEEE_UNDERFLOW is signaling
Siti Sulistiana
Hello, anybody know what it is mean 'forrtl: warning (528): IEEE_UNDERFLOW is signaling'?
Answered
7 months ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
Rainwater Harvesting
Japheth Osumo
We have several buildings which we are seeking to harvest rainwater to an earth dam for use. Basically we have several gutters and downpipes. The Downpipes will in turn be connected to collection pipes which eventually flow into the earth dam. The water…
Answered
7 months ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
Calibração de rugosidade
Gilvandro Barbosa
É possível calibrar o coeficiente de rugosidade de um modelo hidráulico de uma rede de distribuição de água no período?
10 months ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
how to find wall thickness and class of Galvanised iron pipe?
Abhishek Verma
can i find wall thickness in watergems or i have to take the help of hammer. how to design the pipe for particular grade( like mserw grades (grade a or grade b or X42)) or class (like Gallvanised iron (light , medium and heavy class) in watergems…
11 months ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
How do I CONTROL fire flow available and pressure (calculated residual) in water gems????
Newman Bailey
It seems as if the previous designer of this residential development was able to control the fire flow available (1000 gpm) in one scenario and then control the pressure calculated residual (20 psi) in another scenario. Does anyone know how to do this…
11 months ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
Target Model Data getting deleted while importing submodel in WaterGEMS
Naresh Kotgire
Some of the Target Model Data (E.g. Pipes) getting deleted while importing submodel in WaterGEMS Connect Edition. Why? Could anybody help me out from this issue?
over 1 year ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
Modeling Standpipe and Elevated Storage Tank
Allison Densler
All, I am currently working on creating an existing system model that has both an elevated storage tank (750,000 GAL with 56.50' diameter) and a stand pipe (10,000 GAL with a 12' diameter). My model is running into an issue where the two tanks are not…
over 1 year ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
trex not updating elevtion of customer meter and isolation valve
Abhishek Verma
Iam using landxml file as dataset and X-Y unit are in meter and z unit is in meter as in land xml dataset but its showing error as shown below in image attached.
over 1 year ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
How can the WaterGEMS determine pipe diameter automatically based pressure and velocity constraint on optimization by Darwin designer but i'm not having costs of pipe?
Abhishek Verma
darwin designer is asking for cost of pipe.
over 1 year ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
Hydrant testing as a boundary condition
Shyam Sivaprasad, EIT
I would like to know if we could use two independent fire hydrant test (not performed at the same time) results run at two nearby locations as boundary condition to run a fire flow analysis in water model?
over 1 year ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
Watercad nottification error
Sevinç Hazal Doğuç
How can i fix this nottification ? What it means? Its water supply system.
over 1 year ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
How to split crossing pipes in bulk?
Amol Khillare
While building the model many pipes are crossing each other and I need to split them at the crossing point using junctions.
over 2 years ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
1. How can there be a flow supply without any flow demand? Can anyone help pe learn about it?
Engineer Sifi
Answered
over 2 years ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
Demand multiplier
Ibrahim Aminu
Hello everyone. Please can someone help me explain what a demand multiplier is? I want to use ESP but I'm stucked here. I really need to know what demand multiplier is. Thank you
over 2 years ago
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Forum
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