Thank You very much for your time and help Sir Jesse and Tom! Regards, Marco
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Forum Post: RE: Controls
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Water SIG Workshop: Bentley Hydraulics & Hydrology
Register here Don’t miss this Bentley Hydraulics & Hydrology Special Interest Group (SIG) workshop which focuses on water topics important to your success. You will: Hear the latest in hydraulic and hydrology technology and software functionality Learn how to best apply capabilities to your projects and workflows Engage with Bentley experts Bentley Hydraulics & Hydrology SIG one-hour, virtual workshops are structured to keep you informed, engaged, and working optimally. Attendance is complimentary.
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Water SIG Workshop: Bentley Hydraulics & Hydrology
Register here Don’t miss this Bentley Hydraulics & Hydrology Special Interest Group (SIG) workshop which focuses on water topics important to your success. You will: Hear the latest in hydraulic and hydrology technology and software functionality Learn how to best apply capabilities to your projects and workflows Engage with Bentley experts Bentley Hydraulics & Hydrology SIG one-hour, virtual workshops are structured to keep you informed, engaged, and working optimally. Attendance is complimentary.
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Forum Post: Academic project
I am analyzing a water distribution network having 689 no. of pipes. This is purely academic purpose. In our institute, we are having an academic license with the limit of 250 pipes. Therefore I am unable to run entire network. To overcome this problem I am created 4 selection sets. Each selection set having less than 250 no. of pipes. To run entire network how to proceed? How to give Boundary conditions to these selection sets? After giving boundary condition how to proceed? To run an entire network with the help of selection sets how to proceed?
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Forum Post: RE: Unable to Create a New Hydraulic Model/Project due to a random program termination or software activation issue
The three problems I’m experiencing are: 1. The software isn’t opening up a new hydraulic model / project and it terminates with an runtime/program error on each attempt when I try to start a new project. Exiting from this causes the program to freeze and it can only be closed using Ctrl+Alt+Delete and Task Manager. 2. On all but the first install attempt, the WaterGEMS and SewerGEMS software automatically installs with a trial license and does not apply my uni’s Site Activation Key to produce an academic license, no matter how I attempt to activate it using the License Management Tool. It will add an academic license, but it does not remove the trial license from the list. The license tool also will not connect to the server while my internet is operating and I can view other web pages. Yesterday, the trial license listed 7-day use for the software and after deleting the keys and clearing this list and then reinstalling, today it says 3-days. At the end of this 3-days is it possible to provide my Site Activation Key to activate the software for academic use or would it be possible for you to send a separate install link to a stable install file for me to correct this installation issue? 3. The Connection Client software is not connecting to the server despite being able to use the internet to access other pages at the same time with no issue, while antivirus software is disabled. The Connection Client also installs without asking for my username or password to be supplied. It attempts to connect but cannot and it shows the message “Connection Issues - Could not connect – Try Again’’. After clicking on ‘Try Again’ though, there is no way to re-enter in the correct username or password and right-clicking on the icon in the taskbar also only gives the options to ‘Open’ or ‘Exit’ from the program. The procedures I follow have been to 1. Disable all antivirus software and firewall settings. 2. Login to the Bentley Student Server to download WaterGEMS Connect Edition or SewerGEMS Connect Edition software and to collect my uni Site Activation Key. 3. Install prerequisites / dependencies. 4. Run the install file, install everything and then run the program but it does not ask for a Site Activation Key. During the first execution, the title bar in WaterGEMS says that it has a license for academic use or something of this nature, but on other install attempts it does not. I then click ‘Create New Hydraulic Model’, the software attempts to create a new project then terminates with the error “H&H-WaterGEMS stopped working”. 5. I consult the License Management Tool to assess what is happening with the license. It lists a 7-day trial license although the title bar in WaterGEMS indicated it was licensed for academic use following the first install. I try to activate the license with my uni’s Site Activation Key. It creates a second activated license and doesn’t remove or overwrite the first 7-day trial license so that two licenses are open for the one installation. 6. I re-run the software and try to begin a new hydraulic model again and it terminates with the same “H&H-WaterGEMS stopped working” error. 7. I uninstall all Bentley software including the Connection Client. 8. I attempt all the above steps again with the antivirus and firewall disabled. The list of licenses showing in the LMT becomes extensive after several installs so I uninstall everything and then delete all Bentley key / sub-keys I can find using regedit.exe which clears all licenses appearing in the LMT. 9. I try the above steps again. First I install the 32-bit version and on another attempt the V8i edition of WaterGEMS or SewerGEMS, and the same thing occurs after each attempt. After this, I fully uninstall everything and wipe all keys again using regedit.exe. 10. I update all the drivers for my hardware in the Device Manager. 11. I update my AutoCAD 2015 software to AutoCAD 2016 to ensure I have the basic requirements needed to support the 64-bit version of WaterGEMS or SewerGEMS plugins, although this shouldn’t have any effect on how the standalone versions function. 12. I then apply the suggestions given by the staff at Bentley. 13. Following this, I wipe all downloaded installation files and everything I’ve setup through Bentley. I then re-download WaterGEMS again today to attempt a fresh install. This time, I also overwrite the Connection Client install with the 64-bit version of Connection as it has not been connecting to my Bentley student account or the student server/select server? either, but the “H&H-WaterGEMS stopped working” error appears again when I try to create a hydraulic model in WaterGEMS. 14. I then collected the dump files as suggested by the technical support staff at Bentley and will send these through using the link provided. In addition, I tried opening up a second Bentley account when seeking to resolve this issue and I would like to close one since I only need one active account. Both have separate passwords, so I don’t think that the two are sharing any similar access details that might cause an issue when connecting via Connection Client. The laptop I am using is an entry level HP with a Windows 10 x64 based operating system, 4 GB RAM (the max that can be accommodated in this machine) and it has dual Intel Pentium 2020M processors. It comes with a standard Intel HD graphics adapter and has no other graphics card from what I can tell. Could you please review the dump files created after these errors occurred and also advise what is the correct method for downloading and activating the software for student / academic use in case there is anything I am not doing correctly while installing? Can you also advise, if there is anything lacking with my compuer itself that might be causing an error when WaterGEMS or SewerGEMS is run? With thanks, Darryn
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Wiki Page: Model results are different between the GVF-Convex and the Implicit/Explicit solvers
Applies To Product(s): SewerCAD, SewerGEMS, CivilStorm Version(s): 10.00.xx.xx, 08.11.xx.xx Area: Modeling Original Author: Scott Kampa, Bentley Technical Support Group Problem The model results are different between the GVF-Convex and the Implicit or Explicit solvers. Problem ID#: 54193 Solution This is expected. The Implicit and Explicit solvers are dynamic wave solvers (found in SewerGEMS and CivilStorm) used to calculate runoff hydrographs from catchments and analyze the hydraulic response through interdependent systems of inlets, pipes, channels, culverts, and ponds. GVF-Convex solver (found in SewerCAD, as well as SewerGEMS) is used to design and analyze gravity and pressure flow through pipes and pumping stations. Since it is a sewer system program, SewerCAD does not utilize ponds or rainfall data, like SewerGEMS and CivilStorm do. SewerCAD is very good at modeling complex pumping situations. As mentioned above, SewerCAD can also be used to aid in the design of a sewer system. It can also calculate a system in both extended period simulations and steady state situations. SewerGEMS and CivilStorm are used for complex stormwater systems. It uses rainfall data entered by the user to calculate runoff into the system. It is strictly an extended period simulation program and will not design a stormwater system, but for dynamic systems, which changes in storage and flow. With the substantial difference between the design and use of the programs, and in the calculation engine regime, it is expected that different will be obtained between the two programs, even for a similar setup. See Also Differences between the solvers: GVF-Convex vs. GVF-Rational vs. Implicit vs. Explicit (SWMM)
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Forum Post: EPANET Export/Import of WaterCAD
Hi! I've exported a model from WaterCAD to EPANET .INP file. It seems like the [OPTIONS] the default flow unit is LPS no matter what my setting are in WaterCAD. The strangest thing is, that if I import it back to WaterCAD, Coordinate and Elevation units (and only these two) get reset to FEET, which is odd, considering that litre is SI related. If I change the units setting of the .inp file to CMH(m3/h), then the coordinate and elevation units stay set to meter. Is this a known issue, or are there some options I might have missed before exporting to .INP? Best regards,
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Wiki Page: Setting units for data import and export (LandXML, Inroads, etc)
Applies To Product(s): StormCAD, SewerCAD, SewerGEMS, CivilStorm, WaterCAD, WaterGEMS, HAMMER Version(s): 08.11.05.58 +, 10.XX.XX.XX Original Author: Jesse Dringoli, Bentley Technical Support Group Problem How can I ensure that the correct units are used and the elements are in the correct spatial location when exporting and importing LandXML and Inroads SDB? For example, I'm using US Survey feet but my exported Inroads SDB file is offset slightly in Inroads. Solution Ensure that the correct units are being used in StormCAD, under Tools > Options > Units. First, make sure that the "default unit system for new projects" is correct and ensure that the correct units are used for the "Coordinate" unit. For example, if you're using US Survey feet, select US Survey Ft. as the unit. If you will be importing a LandXML file, making some changes, then exporting to Inroads format, first set the appropriate unit per above, then import LandXML, and export to Inroads. In the application that you use to open the resulting exported file (Inroads, MicroStation, etc) also ensure that the correct unit is set. See Also StormCAD SS5 - Scaling issue when opening and viewing drainage exported to InRoads SDB
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Forum Post: StormCAD not Converging when Save As is used to create a new version of a Model
We are working on a good sized project in NJ using StormCAD and have run into a strange issue. This project has gone through a number of revisions over the last year. Each time we made a revision to the model, we created a new version using the "Save As" command in order to preserve the various iterations of the model. For some reason, the last two files created this way will not let us make any changes without running into a convergence error. If we simply open the file and run it without any changes, it will complete the simulation and produce a report without an issue. If we make any modifications and run the simulation, we get a convergence error in the report. It appears that something is preventing the software from acknowledging the change and somehow corrupts the model. The earlier version of the file, date in Jan 2017, also has this problem. If you go back three versions, this problem does not exist. This model has about 75 nodes and it would be very time consuming to recreate the latest version. Can some provide some feedback if this issue has happened before and provide some ideas on how to resolve it? If this cannot be resolved, can we export the data into a new file? Thanks
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Wiki Page: My scenario is not converging on a solution: Convergence NOT achieved in StormCAD
Applies To Product(s): Bentley StormCAD Version(s): 08.11.XX.XX Area: Output and Reporting Original Author: Mark Pachlhofer, Bentley Technical Support Group Problem Description My scenario is not converging on a solution when once computed. I am getting a message in the calculation summary that Convergence is NOT achieved. Reason The calculation solver was not able to converge on a solution given the number of traversals of the network and/or other unresolved user notifications Steps to Resolve Make sure you have the latest version and/or patch set installed For subscribers, the latest version and/or patch set can be downloaded by following these instructions: http://communities.bentley.com/products/hydraulics___hydrology/w/hydraulics_and_hydrology__wiki/8175.aspx Try to resolve all user notifications that are pertinent to the network functioning properly In the user notifications dialog box you can double click on each notification and if it relates to a single element you will be brought directly to that element in the drawing pane. If there are many of the same type, right click on one of the user notifications and choose "select all elements with message id...." Read the user notification carefully and make the necessary changes to the element properties based on the notification details Run the Validate tool to potentially identify additional problems that need to be addressed. Increase the number of network traversals in the calculation options Open the calculation options for the current scenario (Analysis > Calculation Options) Try increasing the number of network traversals. Start with a large number like 50. If that doesn't work try 100. If that doesn't work then there may be data entry issues or something else wrong with the model. If careful review does not surface the root cause, contact technical support or post on the Hydraulics and Hydrology forum . If 100 does work then increase the number until you find the lowest number that still allows the model to converge. See more about the effect of increasing the max network traversals in the article shown below under See Also. A note on flooding If you're experiencing Non-convergence and your model is severely undersized, with significant flooding occurring, please note that this can often be the cause of non-convergence. This condition makes it more difficult for the solver to converge. More recent versions of the product handle this situation a bit better when increasing the max trials option mentioned above, but it is worth considering the limitations regarding flooding with the GVF-Rational numerical solver. The HGL will be reset to the rim elevation and the flow will continue in the pipe, whereas in the real system some of the flow will be lost. See the article below for more on this. See Also Different results when changing Maximum Network Traversals Understanding how Maximum Traversals help with non converging models Why is the HGL reset to rim elevation for flooded structures?
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Forum Post: RE: Academic project
Hello, Ideally, you would simplify or skeletonize you model to that you have only 250 pipes or less. This allow you keep the connectivity and the actual pump data at the boundaries. If you are using WaterGEMS you should be able to use Skelebrator to do this. If that is not possible, and if you are able to divide up the model as you mention above, you could export submodels and open these submodels in new model files. This may require you to define boundaries, which may able to be estimated with flow tests. There is a model for modeling a connection to an existing system that could be used in such a case. Regards, Scott
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Wiki Page: Calculation of Side Flow factor with grate width less than gutter width
Applies To Product(s): FlowMaster, StormCAD, SewerGEMS, CivilStorm Version(s): 08.11.01.03 (FlowMaster), 10.00.00.40 (others) Area: Modeling Original Author: Mark Pachlhofer, Bentley Technical Support Group Problem When a grate inlet's grate width is less than the depress gutter width, the Side Flow factor (Rs) and other results do not match hand calculations. How does FlowMaster and the GVF-Rational solver in StormCAD, SewerGEMS or CivilStorm calculate the side flow factor when the grate width is less than the gutter width? Solution In general, the Discrepancy is likely due to the fact that the program uses the gutter slope to calculate the side flow factor when the grate width is less than the gutter width, for grate inlets. Traditional calculations often use the road cross slope in all cases, which may not be appropriate if the gutter slope is significantly higher than the road slope and the gutter flow is within the depression. Equation for reference: Rs = (1/ (1+ (Kcs * V^1.8)/(Sx * L^2.3)) Where : Rs = Side Flow Factor Kcs = 0.0828 SI and 0.15 U.S. Customary L = Grate Length V = Velocity Sx = road cross slope or gutter cross slope - see below. When the grate width is less than the depressed gutter width... In FlowMaster , a grate inlet on grade will use the gutter cross slope for the calculation of the side flow factor (and ultimately capture efficiency). For a combination inlet on grade, the road cross slope will be used. There is currently no option available to change this behavior. In StormCAD (and with the GVF-Rational solver in SewerGEMS and CivilStorm), for a grate inlet on grade, the side flow factor calculation uses the road slope or gutter slope depending on how the Neglect Gutter Cross Slope for Side Flow switch in Calculation Options is set. If the setting is False, gutter slope is used. If the setting is True, road slope is used. For a combination inlet on grade, the inlet side flow factor (and ultimately capture efficiency) calculation uses the road slope. The Neglect Gutter Cross Slope for Side Flow switch in Calculation Options does not have an impact in this case. When the grate width is greater than or equal to the depressed gutter width... In both FlowMaster and in StormCAD (and with the GVF-Rational solver in SewerGEMS and CivilStorm), both grate inlets and combinations inlets on grade use the road cross slope to calculate the side flow factor. See Also Purpose of "Neglect side flow?" and "Neglect Gutter Cross Slope for Side Flow?" options
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Forum Post: Unable to open a new service request
I have been trying to open a new service request with the Bentley online services. When I click the " new service request" I get a "502 Bad Gateway error." The IT department says this error is caused by the Bentley side of things and is not an error that the IT department can fix. Can you please let me know if this is true? If this is true, how do I go about correcting this error. Thanks, Indu Appan
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Forum Post: RE: Academic project
Sir, How to set boundary condition.. flow test.... ..i have flow reading in selected pipes ..............how to proced?
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Forum Post: RE: EPANET Export/Import of WaterCAD
Hi Craig, Thank you for that! Please add the following comment to the request: Importing the [OPTIONS] section generates the following error every time when I try to import a .INP that I exported from waterCAD: -1 "(N/A)" "Calculation Options" "48" "Base Calculation Options" (N/A) "Parsing error (Section: [Options], Field: Value). Expecting a number, but the actual value was: '0.982157860636364'" EPANET import Purging [OPTIONS] section except "units" field clears this error. Please note that my decimal separator is "," instead of "." in the system settings! I am in lack of administrator privileges on my office PC, so I could not check it if that is where from the error originates. Best regards,
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Forum Post: RE: Unable to open a new service request
Hello Indu, I see that you could create a service request successfully. But you could ask your queries of forum itself, where you get benefit of getting answers from multiple experienced people, which saves time and you get more knowledge about the product.
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Forum Post: Batch pipe split creates negative lengths
Hi guys, I have a pretty large model, in where I connected my hydrants with batch pipe split. The mains have user-defined length. Some hydrants have a lateral pipe (with calculated length), with a junction placed over the main. After splitting thousands of pipes, some of the new pipes (~100) had negative or zero length. I made a query to filter these and group edited the length to 0.1m, to get through validation. Have anyone faced this problem before? Is there a numeric limit of the minimal distance between two junctions? - This might be the source of the problem. Best regards,
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Forum Post: Darwin Calibrator Fitness Number
Hi, Does anyone have a good feel for what are acceptable ranges for fitness numbers when using the Darwin Calibrator function? I am calibrating a large water system and don't have many data points to calibrate to. I have static and residual data for about 10 hydrant pairs throughout the site. I am getting fitness numbers ranging from 600 to 1000. Are these numbers too high? The percent difference in observed vs. simulated HGL varies between 10% - 20%. Any advice would be helpful. Thank you!
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Forum Post: RE: Batch pipe split creates negative lengths
Hello Attila, I'm having some difficulty understanding your problem. I experimented with this and was not able to reproduce the problem, so I may not be clearly understanding the process you're using. Are you able to share a small example with steps to illustrate the problem? You mentioned that you have some hydrants already connected to a lateral pipe, connected to a junction on the main line, which would mean that the batch pipe split is not needed. If the distance between those hydrants and the junction on the main (that they are already connected to) is less than the Tolerance field in the Batch Pipe Split tool, you could end up with some unexpected results. I'm unclear if this is what is happening, though in my testing in the latest version (CONNECT Edition) it did not result in zero or negative lengths. There is an option under Tools > Options > Hydraulic Model to "Round Length to Nearest" but from your description I do not believe this is related.
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Forum Post: RE: Academic project
Madhusudan, If by "flow reading in selected pipes" you mean a hydrant flow test that was done nearby, you can use the steps in the article that Scott linked to above for "modeling a connection to an existing system". This involves configuring a pump and reservoir with pump curve based on the static and residual flow test. This allows the model to simulate the pressure vs. flow relationship at that "boundary" point (where you are not modeling the upstream system) so mimic how the upstream system would respond. Ideally you would model the entire system or a skeletonized version all the way back to the water source.
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