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Type: Posts; User: Vladyman

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1. ## Thread: Valves and fittings

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### Valves and fittings

How to simulate valves and fittings?

I was planning to use a coefficient. Is there a guide for coefficients for different fittings (valves, elbows, tees)?
I was also planning to use equivalent...

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2,041

### pump shutoff head

I have a pump with a shutoff head 76 m
However, when I run the simulation I get a head gain of 96 m
The pump is pumping from reservoir with 5 m head.

Why do I get a head gain of 96m (shutoff...
3. ## Thread: Fire Hydrant head losses

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3,126

### Thank you very much I got the doubt because I...

Thank you very much
I got the doubt because I got good results in the calibration; about 2 psi difference and identifying critical bad condition pipes with very low C (some already verified a leak...
4. ## Thread: Fire Hydrant head losses

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3
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3,126

### Fire Hydrant head losses

I am performing some hydrant curve simulations. However, I got a doubt.
Fire hydrants also experience a local head loss.
Is there an option to include a local head loss in a fire hydrant node? Is...
5. ## Thread: Water temperature

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3
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2,258

### Thank you. One question. How do I apply a...

Thank you.

One question. How do I apply a constant initial temperature?
The first time step I get one temperature (about 27 C), but from the second time step and the other it goes to 0. How can I...
6. ## Thread: Water quality chlorine set up

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1,598

### Water quality chlorine set up

I ahve some doubts when simulating water quality

*How do I define if I want to use first order decay or second order decay?

*When simulating water quality chlorine, how do I enter the...
7. ## Thread: Water temperature

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3
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2,258

### Water temperature

InfoWater has the option to simulate water temperature (in water quality). However, it provide no information about the algorithm of data input.
What are the physical principles used to simulate...
8. ## Thread: Map Display Questions (Potential InfoWater 12.4 issues?)

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3
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3,124

### Thank you. I attach a video showing the bug...

Thank you.

I attach a video showing the bug (water age only shows 2 breaks). I attach a link because the video is quite big (90MB)...
9. ## Thread: Map Display Questions (Potential InfoWater 12.4 issues?)

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3
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3,124

### Map Display Questions (Potential InfoWater 12.4 issues?)

I got some bugs using InfoWater v12.4

When I want to plot water age, the palette only has 2 colors (1 break). When I try to get additional breaks it always goes back to the default 1 break
I...
10. ## Thread: input chlorine at given times

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3
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2,573

### Thank you very much. Sorry, one more question. I...

Thank you very much. Sorry, one more question.
I added the dummy loop with booster and pump. Results show 2 phases (attached image). A first phase in which chlorine tends to decrease. Then, it...
11. ## Thread: floating valve

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2,165

### Thank you very much One more question. Are...

Thank you very much
One more question.
Are there any guidances for the float valve flow vs headloss curve? or each brand provides its own curves?
12. ## Thread: floating valve

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2,165

### floating valve

I have a tank and I want to include a floating valve

Without any valve the connecting pipe has a flow about 1000 cmd and a headloss about 2 m

The minimum tank level is 1m, and the maximum tank...
13. ## Thread: input chlorine at given times

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2,573

### input chlorine at given times

I would like to simulate one case where the chlorine in one strage tank is regulated every day. Every day at a given time, chlorine is regulated at given concentration (e.g. 1 mg/l).

I specify the...
14. ## Thread: unbalancing due to 1 pipe

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2,239

### unbalancing due to 1 pipe

I am preparing a mode
The model run ok, balances after 32 iteartions.
When I add 1 pipe connected to one node with demand zero, then the model does not balance. I increase to 200 iteration but...
15. ## Thread: sewer or SWMM animation

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3
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2,960

### Thank you Bob, I sent you an e-mail ...

Thank you Bob,

I sent you an e-mail

16. ## Thread: sewer or SWMM animation

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3
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2,960

### sewer or SWMM animation

I am preparing a presentation. I want to present some capabilities of InfoSewer and SWMM (try to make a project).
I would like to add an animation showing results of simulation (2D overland flow and...
17. ## Thread: problem running InfoWater v12

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3
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4,104

### Thank, I am using 12.4 Update 1 Other bug,...

Thank,
I am using 12.4 Update 1

Other bug, is that sometimes I cannot visualize the water age. I can visualize flow, headloss, diameter and everything. But when I go to water age, it does not...
18. ## Thread: problem running InfoWater v12

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3
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4,104

### problem running InfoWater v12

I updated InfoWater to v12.
However, I have a problem.
I successfully run a simulation. However, when I perform and try to run a simulation, it only refreshes the screen, but it does not show the...
19. ## Thread: visualization error

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2,149

### visualization error

I run a simulation, but when I go to the Map Display I get the error:

Read Data:System.NullReferenceException: Object reference not set to an instance of an object....
20. ## Thread: Copy model to another PC

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1
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1,974

### Copy model to another PC

I have some water distribution models in InfoWater
I want to copy them to another computer. I copied the whole:
xxx.out folder
xxx.IWDB folder
xxx.mxd map

When I try to open them in the new...
21. ## Thread: Question operating tanks

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2,547

### Question operating tanks

I have a pipe that connects a city pipe connection with a tank (attached figure). The city connection is represented by a reservoir with a PRV.
Total head PRV = 118 m
Total head tank = 91 m
Pipe...
22. ## Thread: GIS Gateway update GIS

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3,418

### GIS Gateway update GIS

I want to use GIS Gateway to update original GIS data that was used to create a model.
In InfoWater I added new pipes and changed diameters. I would like to update the original GIS to reflect such...
23. ## Thread: modelling contaminant decay

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1,888

### modelling contaminant decay

InfoWater can be used to simulate the decay of contaminants such as chlorine. There are several reference guides about reasonable decay constant k for chlorine.
I would like to analyze the decay of...
24. ## Thread: Pump curve NPSH

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4,157

### Pump curve NPSH

I have a pump curve (attachment). The curve that is supposed to show the NPSH shows Flow vs Horsepower.
How can I input this curve? Do I use the curve type 4 (NPSH vs Flow)?
416
25. ## Thread: Message: unable to locate geometry data for pipe

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4,788

### Message: unable to locate geometry data for pipe

I get the following warning message:
WARNING unable to locate geometry data for pipe '460'
WARNING unable to locate information data for Junction 'J1502'

I get those same messages for other...
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