Applies To Product(s): Bentley WaterGEMS, Bentley WaterCAD, Bentley HAMMER Version(s): 08.11.XX.XX Environment: N/A Area: Output and Reporting Original Author: Craig Calvin, Bentley Technical Support Group Problem When computing the model the following user notification appears: "GPV curve is undefined" Background The General Purpose Valve allows simulation of unique headloss/flow relationships using a headloss curve relationship that is always applied. Solution Click on the input field for General Purpose Valve Headloss Curve. Click the down arrow and then select "Edit GPV Headloss Curves". Enter a GPV headloss curve. See Also WaterGEMS Help Article: "Valves", section "Defining Headloss Curves for GPVs".
↧
Wiki Page: User Notification "GPV curve is undefined"
↧
Wiki Page: Will the minor losses associated with pipe bends be automatically accounted for with WaterGEMS/WaterCAD/HAMMER?
Applies To Product(s): Bentley WaterGEMS, Bentley HAMMER, Bentley WaterCAD Version(s): 08.11.XX.XX Environment: N/A Area: Original Author: Mark Pachlhofer, Bentley Technical Support Group Problem Will the minor losses associated with pipe bends be automatically accounted for with WaterGEMS/WaterCAD/HAMMER? Solution No, you must enter the appropriate minor loss coefficient in the properties of the pipe. A library of typical values for various bend angles are included, which you can choose from. We have a minor loss engineering library that can be accessed through the "Minor Losses" property in the appropriate element, which can be accessed by clicking on the ellipsis button. Step 1: Step 2:
↧
↧
Wiki Page: Why is the HGL reset to rim elevation for flooded structures?
Applies To Product(s): Bentley SewerCAD, Bentley StormCAD Version(s): 08.11.xx.xx Environment: N/A Area: Modeling Subarea: Original Author: Scott Kampa, Bentley Technical Support Group Problem Description Why is the HGL reset to rim elevation for flooded structures? Background This article applies to SewerCAD and StormCAD. For information on how overflow and flooding is handled by SewerGEMS and CivilStorm see this article . Steps to Resolve Flooding at manholes in SewerCAD and inlets in StormCAD occurs whenever the elevation of water is above the structure rim elevation. When this occurs, the backwater analysis will continue by resetting the hydraulic grade to the structure rim elevation or ground elevation, whichever is higher. However, if a structure is defined with a bolted cover, the hydraulic grade is not reset to the rim elevation. In actual flooding situations, flows may be diverted away from the junction structure and out of the system, or attenuated due to surcharged storage. In this program, even though the governing downstream boundary for the next conduit is artificially lowered to prevent the propagation of an incorrect backwater, the peak discharges at the structure are conserved and are not reduced by the occurrence of flooding at a junction. Note: The program's algorithm is fundamentally based on backwater analysis. As a result, a continuous frontwater analysis is not performed through two or more consecutive steep pipe. See Also Hydraulic grade discontinuity at steep pipes or across nodes (frontwater analysis) SewerGEMS and CivilStorm: How to find volume (such as overflow volume) through specific elements
↧
Wiki Page: What is the difference between the Backwater Analysis and Capacity Analysis flow profile methods?
Applies To Product(s): Bentley SewerGEMS, Bentley CivilStorm, Bentley StormCAD, Bentley SewerCAD Version(s): 08.11.XX.XX Environment: N/A Area: Original Author: Mark Pachlhofer, Bentley Technical Support Group Problem What is the difference between the Backwater Analysis and Capacity Analysis flow profile methods? Solution The default option for the Flow Profile Method is 'Backwater Analysis' and it is used most of the time when computing a system because it uses the gradual varied flow algorithms, which are more rigorous and generate solutions that more closely reflect reality. This analysis starts at the outfall and solves the network equation upstream. The 'Capacity Analysis' still uses a backwater approach, with the profile type for a pipe being primarily dependent on the pipe's full flow capacity and downstream hydraulic grade. It’s a more simplified approach and is only advantageous over the gradually varied flow analysis in terms of processing time. If you are dealing with a large network and you wish to arrive quickly at reasonable approximation then the capacity analysis is the way to go, otherwise, the backwater analysis is the best option. Note: see the help contents for more information on Gradually Varied Flow (GVF): Contents > Theory > Gravity Pipe Hydraulics > Gradually Varied Flow Analysis Contents > Theory > Gravity Pipe Hydraulics > Capacity Analysis (Approximate Profiles) Basically, the depth of flow can vary over the course of the length of pipe, based on the flow regime (how steep the pipe is, etc.). This can allow hydraulic jumps. This can all be accounted for with a 'Backwater Analysis', whereas with a 'Capacity Analysis', the program assumes the pipes are flowing steady, which is not nearly as accurate. See Also Why does the profile appear to be at odds with the results for capacity? Why is the HGL reset at the rim elevation of flooded structures?
↧
Wiki Page: Does friction method affect local minor loss in pipes? (Solution 500000082703)
Product(s): Bentley WaterGEMS Version(s): 08.11.03.16 Environment: N\A Area: Modeling Subarea: N\A Problem Does changing the friction method in the calculation options change the local minor losses applied to the pipes in the model? Area: Modeling, Problem ID#: 62665 Solution No, the local minor losses are not affected by changing the friction method.
↧
↧
Forum Post: Can I recover an old WATERCAD file that was deleted by accident?
I need to recover an old WATERCAD file that was deleted. I could find it and finally recover it by using a Recovering software; however , when trying to open it ,there is an ERROR message. This error message is in Spanish, but it seems to be related to this other error message "Unrecognized database format". What can I do? I have already tried to open Microsoft Access and use the compact and repair tool in order to repair the database. Also, I have tried to recover my model by copying the model files to a new folder and removing the ".01.bak" extensions. I think these are not appropriate solutions for my problem.
↧
Wiki Page: Using SWMM Control Sets in SewerGEMS and CivilStorm
Product(s): Bentley SewerGEMS, Bentley CivilStorm Version(s): 08.11.xx.xx Environment: N\A Area: Modeling Problem Can SWMM Control Sets be used in Bentley's storm and sewer products? How is the data inputted and utilized? Solution SWMM Control Sets allow a SewerGEMS or CivilStorm user to control the behavior of elements based on the condition in some other element using control rules set based on the SWMM program. These control rules are based on the syntax rules presented below and are used only by the Explicit (SWMM) solver. SWMM Control Sets can be used to turn pumps on and off. They can also be used to adjust the weir height and orifice opening for conduit control structures. Additional information on these can be found in the SewerGEMS and CivilStorm Help documentation. The following screenshot shows the objects that can be used in SWMM Control Sets: Node (depth, head, inflow), link (flow, depth), pump flow, and simulation time are typically used in the condition part of the Control Set. The pump status and orifice and weir settings are used in the action statement. The formatting of this statement is similar to the logical control statement that users of WaterGEMS, WaterCAD, and SewerCAD may be familiar with: IF condition THEN action ELSE action2. Priorities can also be added that will make it so a given control takes precedence over another control. NOTE : It is best to only specify either a SWMM control set or on/off controls for a model. Using both types of controls can lead to conflicts. Creating Control Sets As SWMM Control Sets are used with pumps or control structures on conduits, these elements will need to be present in the model. Go to Components > SWMM Extensions > Control Sets to open the SWMM Control Sets dialog. This is where you can create and edit your control sets. To create a new control set, click the New button in the upper left. The Control Editor Pane on the right side of the dialog allows you to define SWMM controls. Each control rule is a series of statements of the form: RULE ruleID IF condition_1 AND condition_2 OR condition_3 AND condition_4 Etc. THEN action_1 AND action_2 Etc. ELSE action_3 AND action_4 Etc. PRIORITY value where keywords are shown in all caps, ruleID is an ID label assigned to the rule, condition_n is a Condition Clause, action_n is an Action Clause, and value is a priority value (e.g., a number from 1 to 5). NOTE : Only the RULE, IF and THEN portions of a rule are required; the other portions are optional. Blank lines between clauses are permitted and any text to the right of a semicolon is considered a comment. Expected Units for control sets are as follows: Flow: cfs; Length: feet; Time: hours. No units are actually entered in the control set. For example, suppose you wanted to create a control where a weir setting changes based on the flow on a given conduit. The control would be formatted like this: RULE 1A IF LINK CO-1 FLOW > 10 THEN WEIR W1 SETTING = 0.5 In this case, you would enter "LINK" before the conduit label so that the control knows what type of element it is. In the action statemnt (THEN), you include the element type as well as a label. In the example above the label is "W1". This is applied in the Conduit Control Structures dialog, where the information for the control structure is inputted (Components > Conduit Control Structures). The next step for using SWMM Control Sets is to open the calculation option properties. Set the property field Apply SWMM Control Set to "True." For the property SWMM Control Set, click the pulldown menu and select the name. Keep in mind that your SWMM Control Set will typically have more than one entry. For instance, you will have controls for the pump turning and off. For conduit control structures, you would have different weir or orifice settings for different simulation times or flow values. Examples The following are examples of control rules that can be used in SWMM Control Sets: Simple time-based pump control RULE R1 IF SIMULATION TIME > 8 THEN PUMP 12 STATUS = ON ELSE PUMP 12 STATUS = OFF ; Multi-condition orifice gate control RULE R2A IF NODE 23 DEPTH > 12 AND LINK 165 FLOW > 100 THEN ORIFICE R55 SETTING = 0.5 RULE R2B IF NODE 23 DEPTH > 12 AND LINK 165 FLOW > 200 THEN ORIFICE R55 SETTING = 1.0 RULE R2C IF NODE 23 DEPTH 5 THEN PUMP N1A STATUS = ON RULE R3B IF NODE N1 DEPTH > 7 THEN PUMP N1B STATUS = ON RULE R3C IF NODE N1 DEPTH <= 3 THEN PUMP N1A STATUS = OFF AND PUMP N1B STATUS = OFF NOTE: Not all modulated controls are currently available for use in SewerGEMS and CivilStorm. See Also Creating Controls - Conditions, Actions, and Control Sets Creating Controls - Conditions, Actions, and Control Sets for WaterGEMS and WaterCAD SELECTSeries 6
↧
Wiki Page: "Network Unbalanced" problems with zero flow/ static conditions (Solution 500000060448)
Applies To Product(s): Bentley WaterGEMS, WaterCAD Version(s): 08.09.XX.XX Environment: N\A Area: Calculations Subarea: N\A Original Author: Jesse Dringoli, Bentley Technical Support Group Problem Why do I get a "network unbalanced" message when computing a WaterCAD/WaterGEMS model with no demands, but with a water source (reservoir or tank)? I am trying to obtain the static pressures at nodes. Version: 08.09.XX.XX Problem Number 33640 Solution With little or no flow in the pipes, the program will have a hard time converging on a balanced solution. The reason is because the relative flow change between trials will typically be large in this case, since the numbers that it is dealing with are very close to zero. In order for the model to balance, the relative flow change between two successive trials will need to be less than the "accuracy" value, defined in the calculation options. You can view the relative flow changes of trials in the calculation summary (analysis > calculation summary) when selecting the timestep in question (00:00:00 for steady state) and clicking on the "trials" tab. In the case of checking for static pressures, you may need to lower the calculation options accuracy value to something like 0.02, in order for convergence to be achieved. You can also try increasing the maximum trials value, also found in the calculation options. See Also http://communities.bentley.com/products/hydraulics___hydrology/f/5925/t/97333.aspx http://communities.bentley.com/products/hydraulics___hydrology/w/hydraulics_and_hydrology__wiki/8769.how-can-a-user-fix-the-watergemswatercad-error-message-network-unbalanced.aspx
↧
Wiki Page: Can a model be saved down or back to an older version?
Applies To Product(s): Bentley WaterGEMS,WaterCAD,HAMMER, StormCAD, SewerCAD, CivilStorm, SewerGEMS Version(s): 08.11.XX.XX Environment: N/A Area: Other Original Author: Dan Iannicelli, Bentley Technical Support Group Question Can a model be saved down or back to an older version? A user with an older version is not able to open a project I sent them. Can a model be 'saved down' to an earlier version? Solution A model cannot be saved 'down' and most versions are not forwards compatible. For example, if you've created and saved a model in WaterGEMS V8i SELECTSeries 6, a user with an earlier version of will not be able to open it. New releases of the programs have introduced many new element types and features, which will often not be interpreted by an older version of the product. Another reason is that the structure of the database files used to store model data (the 'schema') was changed to accommodate improvements and new features. The older versions cannot interpret the new database format. Below are the options available to resolving this issue. Option 1: Upgrade The recommended solution is to upgrade to the latest version of the software, or at least the version used to modify the model you want to open. Downloading Haestad / Hydraulics and Hydrology Software Option 2: Export to EPANET (Water) or EPA SWMM (Sewer) If the user is not able to upgrade to your version, the best workaround for the Water products (HAMMER, WaterCAD, & WaterGEMS) would be to export the model to the standard EPANET format (File > Export > EPANET). This format can be opened in most older versions (File > Import > EPANET). For example in older v8i versions, you can import EPANET via File > Import > Network. Note that there are limitations with this method such as only being able to export one scenario, and other items described in this wiki article . The best workaround for SewerGEMS and CivilStorm would be to export the model to the EPA SWMM format (File > Export > SWMM v5). After that the SWMM file can then be opened by most older version of the software (File > Import > SWMM V5). As with the EPANET for the water products, you may also run into some limitations or have the potential to lose some information in the process of the export/import. In SewerCAD and StormCAD, you can export the model to the LandXML format (File > Export > LandXML) and import the LandXML file into the older version of SewerCAD or StormCAD. Option 3: Export to Shapefiles Another workaround would be to export all elements in your model to shapefiles and then import those shapefiles with the older version of the software using ModelBuilder. The first thing you need to do if you're using this method would be to make sure all your FlexTables have all the information you input for the properties of each element and then export each element to Shapefiles. Export your elements to Shapefiles is described in the following wiki: Converting your model elements to Shapefiles After you do this you would need to use the ModelBuilder tool in the older version of the software (Tools > ModelBuilder) to import all those elements back in. Using ModelBuilder to construct a network is described in this wiki found below and there is also information in our help documentation on how to use ModelBuilder: Building A Model Using ModelBuilder [TN] This method can take some time to work through. It will assure the data is imported accurately. However, each scenario will need to be done separately. See Also "Unsupported dataset type schema" error or "Object reference" error when opening a model
↧
↧
Wiki Page: Troubleshooting "Network Unbalanced"
Applies To Product(s): Bentley WaterGEMS, Bentley WaterCAD Version(s): 08.11.xx.xx Environment: N/A Area: Modeling Subarea: Original Author: Scott Kampa, Bentley Technical Support Group Error or Warning Message How can a user fix the WaterGEMS or WaterCAD error message "Network Unbalanced"? Similar error messages like "Cannot solve network hydraulic equations" or "Reverse flow detected" may be encountered as well. Explanation The "Network Unbalanced" user notification means that for a particular time step the program could not converge on a balanced solution within the maximum number of trials. Between calculation iterations, the program checks the relative change in flow, which has a default value is 0.001. If the relative flow change is below the "Accuracy" value designated in the calculation options, the time step is balanced or is said to have converged. If the relative flow change is greater than the Accuracy value, the program will try another iteration. If the program reaches the maximum number of trials without finding a solution, the "Network Unbalanced" user notification is generated. How to Avoid There are some things that a user can try to resolve the issue. Calculation Options First, you can try increasing the number of trials. To do this, go to Analysis > Calculation Options. Under the "Steady State/EPS Solver" section, double-click on the active calculation option to view the properties. Find the property field "Trials" and set this to a higher value, such as 400. In many instances, this is enough to allow the program to find a viable solution. Note that the program will not necessarily run all 400 trials, but will only use the number of trials it takes to come up with a viable solution. If that doesn't work, you can also try to increase the Accuracy field (also in Calculation Options properties) to a higher value, such as 0.01. This will mean that the relative flow change between iterations can be higher, which may allow the program to find a solution. You do not want the accuracy value to be too high though, or it may compromise the results. You can also try changing the Engine Compatibility field. The latest solver is "WaterGEMS 2.00.12". If you are using an older solver, using the latest may help as well. If you have PRVs or PSVs in the model, you can also try adjusting the calculation option Damping Limit. Change the value so that it is 10 times the accuracy. So if you have an accuracy of 0.001, set Damping Limit to 0.01. If you have check valves or FCVs, as well as PSVs or PRVs, you can adjust the calculation options "Convergence Check Frequency" and "Convergence Check Cut Off" to higher values. Note that these options are only available for the solver "WaterGEMS 2.00.12". Information on these can be found at the following support solution: Engine Compability modes and Calculation Options . Data Input problems If the issue still occurs, here are some steps to consider when looking for the possible cause of the error message. Check to make sure that your data for all elements is input correctly. Pay close attention to logical controls, valve settings, and valve status, empty or full tanks, and near zero flows as these are common causes of the issue. If you have a check valve on the pipe directly downstream of a pump, consider removing the check valve. In WaterGEMS and WaterCAD, a pump will not allow reverse flow. A check valve on the downstream pipe is redundant and can sometimes impact the model calculations. If you have a significant portion of your model with zero flow (such as the case when modeling "static" conditions), the numerical solver will have a hard time converging on a balanced solution. The reason is because the relative flow change between trials will typically be large in this case, since the numbers that it is dealing with are very close to zero. Check the link in the "See Also" section below for more on this. If you have multiple fixed or variable speed pumps (VSP) discharging into the same pressure zone, this can also cause numerical instability. If the real system includes some manual operation of the pumps in this case, consider matching that in the model by using time based controls or a pattern (is variable speed pump = true, type = pattern). If you have GPV's check the "Flow Demanded" from the calculation summary (Analysis > Calculation Summary) at the time step of the red user notification. If the flow going to that GPV is not enough to provide the flow demanded examine the GPV headloss curve to make sure the maximum value of the curve is large enough to cover that flow. For example, if the flow demanded is 850 gpm check the largest value on the curve is at least 851 gpm. Intra-Trial Status Messages For EPS simulations you might find more clues to solving your problem by either: 1) (if you have V8i SELECTseries 5 or greater) - Click the timestep in question in the Calculation Summary, then click the Intra-Trial details tab. This identifies elements that are changing status between trials 2) (if you have V8i SELECTseries 4 or earlier) - open the .RPC file. This file contains a log of the trials that the program runs through when it is trying to converge on a solution. In order to open this file browse to the folder where your model is saved; that is where the .RPC file will be. You can open this file in a text editor, such as Notepad. With this file open you should look down the trial list until you start to see the trials where there are elements that are constantly changing status (for valves a status change may be going from "active" to "closed" or vice versa and for pumps it could be going from "On" to "Off") over consecutive trials. The elements that have a constantly toggling status could be a clue to where your problem lies. If this happens often for certain elements then your model may be to tightly constrained or controlled and you should attempt to simplify the model where possible. See Also "Network Unbalanced" problems with zero flow/ static conditions (Solution 500000060448) Engine Compability modes and Calculation Options
↧
Forum Post: RE: Can I recover an old WATERCAD file that was deleted by accident?
Hi Gabriela, What version of WaterCAD are you using currently? To find the version number, open the Help menu and select About WaterCAD. The version number will appear on the lower-left corner of the dialog and should start with 08.11.XX.XX. If I convert the files to a version newer than the one you are using you won't be able to open them as the models are not forward compatible. Please provide your model files and any BAK files you have. There are two options for sharing your model on Communities, whichever you choose please be sure to zip your files first. The first option is to attach the zip file containing your model to your reply on the forum using the Advanced Reply Editor (you'll find the link below and to the right of the reply box). If your data is confidential please use the instructions in the link below to send it via Bentley Sharefile. Files uploaded to Sharefile can only be viewed by Bentley employees. Please be sure to reply on this thread with the name of the file after it has been uploaded. communities.bentley.com/.../7079.be-communities-secure-file-upload
↧
Wiki Page: "Pressure pipe stop invert is higher than the connected wet-well base elevation..."
Applies To Product(s): Bentley SewerCAD, Bentley SewerGEMS Version(s): 08.11.04.54 Environment: N/A Area: Layout and Data Input Subarea: Original Author: Jesse Dringoli, Bentley Technical Support Group Problem Description What does the following User Notification mean and what can I do to work around it? "Pressure pipe stop invert is higher than the connected wet-well base elevation so a pipe stop invert set equal to wet-well base elevation" Steps to Resolve This notification is there to warn you of a limitation in this situation. During calculations, the program will override your selection of the stop invert of the pressure pipe and set it equal to the bottom of the wetwell. It doesn't mean that there's a problem, but rather an assumption to be aware of so that you can decide how to proceed. The model will still calculate, and the results will be reliable, assuming that you're OK with the assumption of the invert being set to the bottom. The implications of this are the same as if you manually connected the pressure pipe to the bottom of the wetwell. This means that the upstream pump will need to add less head than it would have. Depending on the pump curve and system head curve, this may not make a significant difference. This is likely why this assumption is in place, as most systems like this would see a negligible difference. If you feel that the operating point of the upstream pump and the information you ultimately need might be effected by this assumption, a manhole workaround can be considered - insert a "fake" manhole just upstream of the wetwell at the desired elevation, then connect it to the wetwell with the short, smooth, large diameter conduit. Although the manhole isn't there in the real system, the manhole suggestion is a workaround in order to allow the hydraulics to behave as they would with the invert connected at a higher elevation. If your goal is to make sure that the existing system is working OK, then this should not be a concern - if the pipe between the "fake" manhole and the wetwell is hydraulically insignificant (large and smooth), it will not effect the results, and the model should act just as it would in the field where the upstream pressure pipe is connected directly to the wetwell at an elevation higher than the bottom. From doing this, you could also compare the results to that with the pipe connected directly to the bottom of the wetwell, as a sensitivity analysis. If the end results you need are not noticeably different, then you might conclude that the manhole workaround is not necessary. We will look into improving SewerCAD in the future to allow a pressure pipe to be connected directly to the upstream side of a wetwell at an elevation higher than the bottom (reference # 136510). See Also
↧
Wiki Page: Where can I find the definition of a property?
Applies To Product(s): Bentley WaterGEMS, Bentley SewerGEMS, Bentley CivilStorm, Bentley StormCAD, Bentley PondPack, Bentley SewerCAD, Bentley HAMMER, Bentley WaterCAD Version(s): 08.11.XX.XX Environment: N/A Area: Original Author: Mark Pachlhofer, Bentley Technical Support Group Problem Where can I find the definition (description) of a property? Solution There are a few places to find the definition of a property if you need more information about it. The following solution uses WaterGEMS as an example, but the solution applies to all the hydraulics and hydrology programs, except FlowMaster and CulvertMaster. The bottom of the properties window If you click on any property cell such as diameter (see red box below), which highlights the property, the definition will show on the bottom of the dialog window (see blue box below). In the help documentation *This example below uses WaterGEMS, but applies to all hydraulics and hydrology products If you go to Help > WaterGEMS Help, you can use the Search tab to find more information on any property or feature. On the Bentley forums or in a wiki article While you may not find a better explanation of all properties or features here we're constantly updating the forums and wiki articles, so there is a lot of information that you may find useful. This wiki article explains how you can search for information on the forums and this article explains how to use the forums . See Also How to search for keywords or phrases in the properties grid
↧
↧
Wiki Page: How do pumps work in the hydraulics and hydrology products?
Applies To Product(s): Bentley WaterGEMS, Bentley SewerGEMS, Bentley CivilStorm, Bentley SewerCAD, Bentley StormCAD, Bentley HAMMER, Bentley WaterCAD Version(s): 08.11.XX.XX Environment: N/A Area: Original Author: Mark Pachlhofer, Bentley Technical Support Group Problem How do pumps work in the hydraulics and hydrology products? Solution WaterCAD/WaterGEMS/SewerCAD Pressure solver The way that pumps work in the Hydraulics and Hydrology (Haestad) products is by adding enough head and the corresponding flow rate, which is defined on your pump definition curve, to overcome the losses and elevation differences between your upstream and downstream boundary conditions. The pump operating point is where the pump curve intersects the system head curve. For more details on this please refer to this wiki . In the case of a closed system with only downstream fixed demands in WaterCAD and WaterGEMS, the operating point will be based on the demands. Essentially, it operates at the point where the pump characteristic curve intersects with the system head curve. You can read more about this in the book Advanced Water Distribution Modeling and Management Implicit SewerGEMS solver In SewerGEMS with the Implicit numerical solver, the downstream boundary is considered to be the crown of the pressure pipe where it meets the receiving gravity node, or any intermediate high point. GVF - Rational StormCAD solver When using StormCAD or the GVF-Rational solver pumps are now supported as ideal flow pumps as of Select Series 3 [08.11.03.77]), meaning that flow in will equal flow out and the pump curve is not used in the calculations. This solver does not support parallel pumping or pump controls. GVF - Convex SewerCAD solver When using the GVF Convex solver pumps will work the same as the pressure solver for pressure situations and will work the same as the implicit solver for gravity situations. When running a steady state the solver doesn't support pump controls. See Also A pump exceeds the maximum operating point user notification System Head Curves in WaterGEMS and WaterCAD
↧
Wiki Page: Creating a dump file: "... Stopped Working" error when opening product
Applies To Product(s): Bentley WaterGEMS, WAterCAD, StormCAD, SewerGEMS, SewerCAD, CivilStorm Version(s): 08.11.xx.xx Environment: N/A Area: Installation Subarea: Original Author: Jesse Dringoli, Bentley Technical Support Group Problem When opening the standalone version of WaterGEMS or one of the other Hydraulics and Hydrology products, a window appears with the error "Bentley WaterGEMS has stopped working" the program does not open. Solution This is a generic crash that can occur in a number of different situations, mostly related to operating system components or other supporting prerequisites. Here are some cases that have come up before: Case 1 The "Stopped working" error can occur starting in version 08.11.06.113 (WaterCAD/WaterGEMS/HAMMER) / 08.11.05.113 (SewerGEMS/CivilStorm/StormCAD/SewerCAD) with some versions of the CONNECTION client. First, make sure you have the most recent version of the CONNECTION Client installed. This can be found in the Windows system tray - you can typically right click and choose to update. Also, try logging into the CONNECTION Client after updating. In some cases you may need to exit the CONNECTION Client and the Haestad product, reopen the CONNECTION Client (check the Windows start menu to find it), log in, then open the Haestad product. Also, if possible, try running the Haestad product as Administrator - right click on the shortcut and choose "Run as Administrator". Case 2 Product: WaterGEMS 08.11.05.61 and SewerGEMS 08.11.04.54 64-bit version (32-bit version did not experience the problem) Operating System: Windows 8.1 Language: Spanish In this case, the Windows Event Viewer Application log contained a separate entry corresponding to the time of the crash, indicating an issue with "VC80". The issue was resolved by uninstalling the apparently conflicting or corrupted version of Microsoft Visual C++ 2005 Redistributable (x64) 8.0 from the Windows "Programs and Features" tool, then reinstalling the product, which reinstalls this component. Case 3 Product: WaterCAD 08.11.05.61 64-bit version Operating System: Windows 8.1 Language: English In this case, the Windows Event Viewer Application log contained a separate entry corresponding to the time of the crash, indicating an issue with "CLR20r3". Running a scan on the system resulted in the following: It appears the issue has to do with the .NET Framework component that is a part of the operating system. The user had a repair done on his operating system to resolve this issue. Another option would be to run a Repair on the program through the Control Panel (Control Panel > Programs and Features). After doing this, right-click on the shortcut for the program and select Properties. In the Compatibility tab, place check mark for the item "Run this program as an administrator". Also click on "Change settings for all users" and make sure that "Run this program as an administrator" is set for there as well. Additionally you can try the following steps: 1) Try uninstalling WaterGEMS 2) Uninstall the .NET frameworks, which need to be uninstalled in descending order. 3) Reinstall WaterGEMS and go through the same steps that caused the error to occur. 4) If step 3 doesn't work then follow that with an install of any new additional updates to the .NET framework that are available. 5) Test the steps that caused the error to occur again. What if none of these help? Generate a "dump" file and send it to technical support for investigation. To do this: 1. Start the Haestad product (such as WaterCAD) 2. Do not close the Application has stopped working window 3. Run Windows Task Manager (press Ctrl-Shift-Esc or right click in the bar at the bottom of the screen and select “Start Task Manager” ) 4. In Task Manager, go to the Processes tab and right-click on the crashed process 5. Select Create Dump File You can compress this into a zip file and upload it as an attachment to your forum post here or your service request here . If the file is too large, request an upload link from technical support.
↧
Forum Post: Problem in importing dxf file as pipeline
We are facing problem in importing dxf files as pipeline. The model builder detects the drawing as pumping station which should be pipeline. The auto cad file is attached for reference. (Please visit the site to view this file)
↧
Forum Post: Modeling Sanitary Sewer Forcemain
I am modeling a pump station and forcemain in WaterCAD and Hammer. At the forcemain discharge point I have attached the "discharge to atmosphere" element. My question is whether or not I need this element or will a junction node at the end of the forcemain suffice?
↧
↧
Forum Post: RE: Modeling Sanitary Sewer Forcemain
Hello Rob, Assuming the force main is discharging a free outfall or manhole, the Discharge to Atmosphere element will more accurately reflect the results. You can find information on using the discharge to atmosphere element in WaterCAD here: communities.bentley.com/.../19581.how-do-watergemswatercad-treat-the-discharge-to-atmosphere-element-solution-500000060295 The same is true for modeling this in HAMMER. The discharge to atmosphere element, set as an orifice, is typically used to model free outfalls, including sewer force mains. The following link has details on how this works in HAMMER: communities.bentley.com/.../modeling-reference-_2D00_-discharge-to-atmosphere . Please let us know if you have any questions on this. Regards, Scott
↧
Forum Post: Need help with Water quality (chlorine ) graph
Hi, while simulating chlorine decay for an area. the results in the graph is starting from 76th and there after the results are stable.The Kb value and Kw value being -0.048/day and -0.05/day. Reservoir having a concentration of 0.5mg/l. I'm I missing something here, as I want the graph to start from the first hour.
↧
Forum Post: RE: SormCAD- How to get invert level of Box conduit above road surface
Hello Rohit, 1) It is unusual to see a storm conduit that is above ground. In the automated design process, one of the highest design priorities is that minimum cover is attained. That being the case, if the purpose to have the invert of the conduit above ground, it is not a surprise that the automated design is setting the invert above ground. What have you entered for the minimum and maximum depth in the default design constraints? Also keep in mind that, as with any automated design, the program's design is intended only as a preliminary step. It will select pipe sizes and pipe invert elevations based on the input provided, but no computer program can match the skills that an experienced engineer has. The modeler should always review any automated design, and should make any changes required to adjust, improve, and otherwise polish the system. 2) The time of concentration will not change during automated design and will remain the value that you have inputted. If the time of concentration should be a different value, you will need to enter this manually. Time of concentration is independent of the conduit the runoff eventually drains into. StormCAD does account for flow time in the conduit during automated design, as mentioned here , but that is not same as the catchment Tc. Regards, Scott
↧