Hi Videet, If you wish to remove splits which were already created there are two ways to go about it; 1. You could manually merge each node to the nearest node you desire. While this allows flexibility in choosing which nodes to keep and which to merge; it can be tedious if you have a large number of pipe splits. There is a workaround to this my exporting the nodes and pipes to shapefiles and tweaking the geometry so that unwanted nodes can be isolated while rebuilding the model using ModelBuilder. The below article explains the detailed procedure, Merging Nodes in Close Proximity 2. You can also try using the Skelebrator Skeletonizer tool to merge pipes in series. This would however convert the inline nodes into pipe splits. The below article explains about this; Converting nodes into bends Hope this helps.
↧
Forum Post: RE: Unsplit the split nodes.
↧
Forum Post: RE: Assigning Demand based on Thiessen Polygon area.
Hello Videet, How to proceed with the existing data depends upon what data you have; do you have population data for a ward and population density or land use type data? Please note that Loadbuilder uses only shapefiles for importing the data, excel files cannot be imported through Loadbuilder. Instead you would need to import the excel file using Modelbuilder. What data have you prepared in the excel file? Do you have the junction labels and corresponding demands ready with you in excel file then you can import that data using Modelbuilder directly. If you don’t have exact node demands and junction labels ready with you in excel then you would need to prepare shapefiles containing data like population density for the polygons/ward and use Loadbuilder with the help of Thiessen Polygon as mentioned in below wik’s. Import loads from shapefile containing polygons with land use type and total population Distributing loads based on areas of different Population type Please let us know if this helps or not.
↧
↧
Forum Post: RE: Assigning Demand based on Thiessen Polygon area.
Dear Sushma, I am using excel file only, to import the population / demand data to my hydraulic model. The demand column (6th column) is to be used to assign the demand to the Junction. The ID column (2nd column) is kept same as that of the particular Junction ID, so that while building the model it should be attached to that particular Junction only. The problem what I am facing is, it creates an orphaned node (with demand) after building the model, and it is not replacing the existing node same ID. Hence, two overlapped nodes are created. I have done this several times, but don't know why I am facing this issue. Note : - The excel sheet prepared is the output of Theissen Polygon created using WaterGEMS, on which the demand is worked out. Thanks!
↧
Forum Post: RE: Assigning Demand based on Thiessen Polygon area.
Hello Videet, Instead of ID use junction Label as the identifying link between excel data and the model, the below video demonstrates how to import demands using Modelbuilder. communities.bentley.com/.../Importing-demands-thru-MB.mp4 This has been explained in detail in the below mentioned wiki. https://communities.bentley.com/products/hydraulics___hydrology/w/hydraulics_and_hydrology__wiki/2708/importing-loading-information-using-modelbuilder Please note that this will overwrite the existing demands, so if required please create a new demand alternative and make that active.
↧
Wiki Page: Distributing loads based on areas of different Population type
Product(s): SewerGEMS, SewerCAD Version(s): 08.11.X.XX, 10.XX.XX.XX Area: Layout and Data Input Problem How can I distribute loading to manholes based on areas of different population types (such as wards) that have different consumption per person per area? Solution First, use the Thiessen Polygon tool to generate service areas for each manhole. If you want to ensure that service areas associated with a manhole stay within the respective type/ward, select "Polygon Boundary" and select the shapefile that contains the polygons with the different population types (such as the different wards). Attach both shapefiles as a background layer for visualization. Next, use Load Estimation by Population method in Loadbuilder (Tools > Loadbuilder), with the Thiessen polygon selected as the Service Area Layer. For the Population Layer, select the shapefile containing the different population types/wards (the same shapefile you used in background) For the Population Density Type Field, select the field in your shapefile that designates the different type of population (for example Ward A, Ward B, etc). Next, for the Population Density Field, select the field in your shapefile that contains the population density (pop/area) and respective unit. Then, enter the respective load densities in the table at the bottom. Loadbuilder will distribute loads to manholes according to the area of the respective service area layer along with the population density and load density of the overlapping population layer. See Also Converting Model Elements to Shapefiles How do each of the Loadbuilder methods work? Import loads from shapefile containing polygons with land use type and total population
↧
↧
Wiki Page: In WaterCAD\GEMS for AutoCAD, how to fill in the hydrant symbol or turn it off?
Product(s): SewerGEMS, WaterCAD, SewerCAD, StormCAD, WaterGEMS, Hammer, CivilStorm Version(s): 08.11.XX.XX, 10.XX.XX.XX Area: Layout and Data Input Problem When working in AutoCAD integrated mode of hydraulics and hydrology products, how to fill in the element symbol or how to turn it off? Problem Number: 33588 Problem Number:33181 Solution How to fill the elements : You can fill the different element symbols in hydraulics and hydrology products like catchments, hydrants, tanks, reservoir, PRV, air valve etc. E.g. Open WaterCAD for AutoCAD Enter the Hatch command Select the hydrant to fill You will have to choose each hydrant you want to fill. How to turn off the filling : E.g. Open WaterCAD for AutoCAD, In the Command line, Enter FILL, Enter OFF, Enter REGEN. Y ou can always turn the hatch back ON when you're ready. See Also AutoCAD Integration Troubleshooting
↧
Forum Post: RE: water age
Hey Jesse. Thanks to you all for your responsiveness and good help. I see it better after graphing a few junctions. Tom Vincent T. (Tom) Zarzaca PE | Project Engineer
↧
Forum Post: Using .MXD (.MDB) file in WaterGEMS.
Hello, Is there any way by which I can use .MXD (.MDB) file directly into WaterGEMS? Or suggest any other way. Thanks!
↧
Wiki Page: WaterGEMS For ArcGIS [FAQ]
Product(s): WaterGEMS, HAMMER Version(s): CONNECT Edition, V8i Area: Modeling Create/Open/Save Models How do I create a new WaterGEMS model inside ArcMap? How do I open an existing WaterGEMS model inside ArcMap for the first time? How do I open a WaterGEMS model that is already associated with an ArcGIS MXD file? How do I save my model files when working in the ArcMap environment? Installation, Compatibility, Integration Which versions of WaterGEMS support which versions of ArcGIS? I've integrated WaterGEMS with ArcGIS and I have the correct versions, but I don't see the WaterGEMS menu. Why? When working in ArcGIS mode, why are the tools in the WaterGEMS layout toolbar grayed out? What is the difference between using the "WaterGEMS for ArcMap" shortcut versus opening ArcMap normally? Data Conversion (ie. import/export) Preparing GIS data for use in the hydraulics and hydrology products How can I convert my GIS data to a water or storm-sewer model inside ArcMap? What is the best procedure to use when creating a shapefile or feature class to help ensure that when I create a model from it using modelbuilder I won't run into problems with pipe or junction connectivity? General What are some operations that I should NOT be performing in WaterGEMs for ArcMap? How do I use and display Active Topology for elements on the ArcGIS/ArcMap Platform? Why a double clicking on element doesn't show the properties for the element inside ArcMap? Geodatabase (.mdb), Geotable, and ArcMap Document File (.mxd) How does the geodatabase (.mdb) file function in WaterGEMS for ArcMap? What is a Geotable? Can I add a field to a WaterGEMS layer without corrupting the feature class or geodatabase? After working on a project in ArcGIS mode and saving an .mxd, why does the WaterGEMS model not appear when reopening the .mxd? Licensing Why is my license listed as "Not Available" under the extensions (Customize > Extensions) in ArcMap? If I'm working in ArcMap without a WaterGEMS model open, am I still using a WaterGEMS license? Element Symbology How do I color code my elements in WaterGEMS for ArcMap? How do I color code different properties on the same layer in WaterGEMS for ArcMap? How do I automatically get my layers in WaterGEMS for ArcMap to populate the WaterGEMS symbology that's in standalone or in the WaterGEMS/CAD for AutoCAD version? How can I enable the flow arrows and active topology colors when working in ArcGIS mode? How do I remove a color coding from a WaterGEMS layer? In WaterGEMS for ArcMap I do not see a dashed line connecting the customer meters to the associated element like I do in WaterGEMS standalone. Why is this? Why aren't all the WaterGEMS properties available when color coding or annotating in ArcGIS? See Also Haestad Product TechNotes And FAQs WaterGEMS and WaterCAD TechNotes and FAQs
↧
↧
Forum Post: RE: Using .MXD (.MDB) file in WaterGEMS.
Hello, The most straightforward way of using MXD or personal geodatabase files in WaterGEMS is to work with WaterGEMS in the ArcMap platform. You can find a lot of good information on using WaterGEMS for ArcMap here: WaterGEMS for ArcGIS (FAQ) . If you prefer to work in WaterGEMS standalone, you would want to save the GIS data into a shapefile format. Once you do that, you can work with the shapefile data in a few different ways. First, you can use the shapefile to build a WaterGEMS model using ModelBuilder. The data from the shapefile can be mapped into properties for different WaterGEMS elements. The following link has information on this: Using ModelBuilder to Import External Data . You can also add the shapefile as a background file. This is done by going to View > Backgrounds. Click the New button and select the shapefile. Regards, Scott
↧
Wiki Page: Opening old WaterCAD or WaterGEMS WCD model files and preserving presentation settings
Applies To Product(s): WaterCAD, WaterGEMS Version(s): 07.00.xx.xx, 06.xx.xx.xx, 05.xx.xx.xx Original Author: Scott Kampa and Mark Pachlhofer Bentley Technical Support Group Problem How can I import old WaterCAD or WaterGEMS files (such as version 7 and older .WCD file) into later versions of WaterCAD or WaterGEMS? or How can I import WaterGEMS 3.0 or WaterCAD 7.0 files to WaterCAD V8 XM, V8i or CONNECT Edition standalone while preserving the old presentation settings? (color coding and annotations) Solution To open the model, you must select "database files" from the "files of type" dropdown in the File Open dialog, and browse to the .MDB file associated with the older model. The exact steps to take depend on the version that the models were last saved in. The first option is for files saved in version 6.0, 6.5 or 7.0, where the model consists of both a .WCD and .MDB file. The second option is for files saved in version 5.0 and below, in which there is only a WCD file. There is also an option to save presentation settings (color coding, annotation, etc) that are stored in the .wcd file. They will NOT be imported by default. In most cases, this is fine and you can skip the prompt for presentation settings, since V8 XM includes more robust options for color coding and annotation. If you would like to retain the presentation settings, you must export them from version 7 first, by opening the model in version 7 and going to File > Export > V8 XM Presentation Settings. Note, however, that this menu item will not be present unless the exact build of version 7 is 07.00.061.00 and WaterGEMS/CAD V8 XM must have been installed second, since the installation of V8 XM is what places that menu item in V7. WaterCAD or WaterGEMS files from version 7, 6.5 and 6.0 (WCD and MDB file) If you have model files from version 6.0, 6.5 or 7, they will consist of a .WCD and .MDB file. The .WCD file contains presentation settings, such as color coding and labeling. The .MDB file contains most of the model data. If you have the .MDB file, you can import the older model by opening WaterCAD or WaterGEMS V8 or V10 (CONNECT Edition) and going to File > Open. Change the "Files of type" in the Open dialog to look for database files, then browse to the .MDB file for the older model and select it. A file upgrade wizard will open. Follow the steps and dismiss the first prompt about presentation settings. The model will open in a new untitled worksheet. Save the model and the model will now be in the WaterCAD/WaterGEMS V8 format. Using the above approach, any color coding or annotations with the older model will not be retained. These can be recreated through Element Symbology (View > Element Symbology). However it is also possible to retain these by first exporting the presentation settings to a special .XML file. This requires that WaterCAD/WaterGEMS V7 and WaterCAD/WaterGEMS V8i is installed on the same machine and that V8i has been installed second. Further steps to do this can be found below in the section "Exporting Presentation Settings". Exporting Presentation Settings Prerequisites: a) You need to have version 7 and 8 both installed on the same machine. b) Version 7 must be installed prior to version 8 in order to have this functionality active, since the installation of V8 XM is what places that menu item in V7. Presentation settings, such as color coding and annotation are not included when importing an older model database, since these are stored in the .WCD file. You can recreate them in the Element Symbology manager in V8i, but if you have WaterCAD/WaterGEMS version 7 installed on the same machine as WaterCAD/WaterGEMS V8i, there is another way. Note that V8i needs to be installed after V7. Also, note that V8i SELECTseries 1 did not have this option (in this case, it is recommended that you upgrade). Instructions: 1. After saving the .WCD file into the version 7 format, go to File > Export > Bentley WaterCAD V8 XM Presentation Settings .This will create a .XML file in the folder that the model is stored. 2. Open up WaterCAD/WaterGEMS V8 XM, V8i or CONNECT Edition and then go to File > Import > WaterGEMS/WaterCAD database (or in newer versions: File > Open, select database files from the Files of Type dropdown). 3. When you import the .MDB file and open the file upgrade wizard, the .XML file should be automatically detected as long as the file is stored in the same folder as the .MDB file. Continue through the wizard to upgrade the model. Once it is imported, go to View > Refresh Drawing. The color coding should now be applied. WaterCAD or WaterGEMS files from version 5.0 or older (WCD file only) If you have model files saved in version 5.0 or older, you need to use V7 as a bridge. Previous to version 6.0 all model data was saved into the .WCD file. Starting in version 6.0, most of the modeling properties were stored in the .MDB file, while presentation settings were stored in the .WCD file. If you're a SELECT customer and want access to version 7 of WaterCAD that uses a SELECTServer compatible license version please contact technical support by submitting a service request or by phone. To import these old model files, the first step is to open the WCD file in WaterCAD/WaterGEMS version 7. There is a version of WaterCAD/WaterGEMS version 7 that will work with SELECTserver licensing, however that version of the program is not compatible with Windows Vista or later operating systems. If you are installing on a Windows XP machine (or a virtual machine using XP) it can be installed on the same machine as the current V8i program. It will use the same licensing information as well. Next, open the WCD file in WaterCAD/WaterGEMS version 7. You will see a message stating that the program has detected that it is an older version and that it will upgrade the files to the version 7 format. Once the program opens, save the file. If you now browse to the folder that the model is stored, you will find a .MDB file as well. Now open WaterCAD/WaterGEMS V8 XM, V8i or CONNECT Edition. Go to File > Import > WaterCAD/WaterGEMS database (or in newer versions: File > Open, select database files from the Files of Type dropdown). Select the .MDB file associated with the model and follow the steps in the file upgrade wizard. The model will open in an untitled worksheet. Save the file and it will now be in the current format. What if I don't have access to the older version and need to retain presentation settings? If you do not have access to version 7 (or a Windows XP computer/VM) and need to retain presentation settings or convert a V5.0 (or below) model, Technical Support may be able to help. If you have a reasonable number of model files to convert (for example 1-5), compress the model files (.WCD or .WCD and .MDB) into a zip file and submit them to technical support for conversion. This can be done via the Hydraulics and Hydrology Forum (a confidential file transfer process is available) or by Service Request. If you have a large number of model files to be converted, installing version 7 as mentioned above is a better solution. Technical Support can help with that. What if my model file was saved in Cybernet? (Pre-WaterCAD) Converting Cybernet model files to the V8i format Video Demonstration communities.bentley.com/.../FileConversion.mp4 See Also Opening old WaterCAD models in WaterCAD or WaterGEMS V8 [VID]
↧
Forum Post: RE: SWMM 5.1 Results differ from Sewergems SWMM Calculation Results
Hello Jared, In addition to the information above, the developers noted something else that may impact the stability of the results. It appears that the two ponds in the model have composite outlet structures that include elements where the elevation is outside of the operating range of the ponds. Each of the two ponds have an orifice as part of the composite outlet structure, but the invert elevation of the orifices is below the lowest point of the associated pond. I would review these and perhaps other elements in the model to be sure that the input is reasonable. Regards, Scott
↧
Wiki Page: Troubleshooting unstable SewerGEMS and CivilStorm model results using the Explicit SWMM Solver
Applies To Product(s): CivilStorm, SewerGEMS Version(s): CONNECT Edition, V8i Area: Layout and Data Input Original Author: Jesse Dringoli, Bentley Technical Support Group Problem When using the SWMM calculation engine (Engine type set to "Explicit"), a high continuity error and/or hydraulic results appear to be unstable and otherwise questionable. Solution Check data entry There are many things that can cause a high continuity error or instability with the SWMM calculation engine. First, review all your data input for errors and review the User Notification list. Errors in data entry such as elevations, including the elevations of composite outlet structures, can cause problems with the calculations which can possible impact the entire model. Adjust Routing Step Next, try reducing the " Routing Time Step " in the calculation options. Reduce it gradually until results are better. For example, you may try a routing time step of 30 seconds, 10 seconds, 5 seconds, 2 seconds, down to a minimum of 0.1 seconds for very difficult models. Smaller routing time steps are often needed in models with fast-changing conditions such as pumps that cycle and sensitive control structures (especially weirs) and flow splits. Note that for issues related to excessive flooding or surcharging, a smaller Routing Step may not be best and a value of 5 seconds or greater may be best. Adjust Advanced Calculation Options In more recent versions of SewerGEMS and CivilStorm, you can adjust addition calculation options: The Max Trials per Time Step and Head Convergence Tolerance can be adjusted for better convergence. For the head convergence tolerance, if the difference in computed head at each node between successive trials is below this value the flow solution for the current time step is assumed to have converged. The default tolerance is 0.005 ft (0.0015 m), which can be increased for a better chance of convergence, at the cost of accuracy. You can increase the Max Trials per Time Step to allow the solver to try additional trials to attempt to converge, which can have an impact on performance. You can view pipe convergence statistics in the output report, just below the mass balance section. In the CONNECT edition version (10.XX.XX.XX) of the software on the calculation summary go to the Report tab and review the different reports to determine, which elements needed to be reviewed for troubleshooting. The Use Bentley transition equation option is related to when pipes first become surcharged. Using this option enables a new algorithm for a smoother transition from gravity to near-full and to full surcharged. The Minimum Surface Area option is an EPA SWMM stability enhancer, representing the minimum surface area at nodes when computing changes in water depth. If 0 is entered, then the default value of 16.67 square feet is used. This can increase stability, at the potential cost of accuracy. The "Use Variable Time Step?" option can be used if in doubt the smallest times step is being used. It is computed for each time period to prevent an excessive change in water depth at each node. The value entered is applied against the variable time step and is automatically applied to shorter pipes to preserve stability. The "Time Step for Conduit Lengthening" property of the calculation options can also be used if in doubt the smallest time step is a trouble factor. This property allows the conduit to be artificially lengthened during the analysis such that travel time is equal to or greater than the time step. Export the file to SWMM by going to File > Export > EPA SWMM. Open the file in the latest version of EPA SWMM , then compute the model and troubleshoot the messages in the status window. If you're using pumps in your model, check the on and off elevation range, pump curves and adjacent pressure pipes. With the Explicit solver, better stability is typically achieved when using a virtual pipe on either side of the pump. For example, the pipe between the wetwell and the pump - set "is virtual?" to "true". Also, a particularly small routing step may be needed. Additionally, try using Multi-point as the pump curve type, as this can typically yield better results. Review storm data and to make sure it's entered correctly and there is a label associated with each storm event. See Also Troubleshooting unstable SewerGEMS and CivilStorm results using the Implicit solver
↧
↧
Forum Post: RE: SWMM 5.1 Results differ from Sewergems SWMM Calculation Results
Hi Scott - Thanks for the feedback. Increasing the time step or output increment did not seem to help so I've gone with reducing the orifice to a size of 4" instead of 6" which reducing the error down to about 9%. Regarding the elevations of the orifice, I wondered how the model would handle the situation so perhaps it is contributing to the problem, but what we were trying to do is model a sloped pond with an orifice that is a certain elevation (bottom slope of XX% toward the outlet structure) lower than the "bottom of the pond" per the model. Hence setting the elevation of the orifice and the FG at the outlet structure below the bottom of pond. It does seem to be okay in other models where we are doing the same thing, and I'm not sure how the pond and outlet structure export to SWMM, but again, the error in the SWMM 5.1 program was essentially 0%.
↧
Wiki Page: Error "The given key was not present in the dictionary"
Product(s): SewerGEMS, SewerCAD, CivilStorm, StormCAD, PondPack Version(s): CONNECT Edition, V8i Area: Modeling Error or Warning Message When computing a model, the following error message is generated: System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary. Solution 1 - If error appears when computing model A) This may be related to database formatting issues within the Sanitary Loading or Inflow Control Centers. To Resolve: Close the model, but leave the program open. Go to Tools > Database Utilities > Compact Database. Select the database file associated with the model and select Open. A new dialog will be generated. Select the option to purge the database to save space. Once this is completed. Reopen the model and compute it. The error message should no longer occur. B) This may be related to the composite outlet structures. 1) Open the composite outlet structures manager (Components > Composite Outlet Structures) 2) Go one by one to the title of each composite outlet structure and compute it using the compute button. 3) When you locate the structure causing the issue check to see if there are any structures that have the same label name. If there are make them unique from each other. C) This may be related to a conduit using a catalog conduit. 1) Open the conduit FlexTable 2) Add the fields "Conduit Type" and "Size" if they are not already in the FlexTable. 3) Make sure all conduits that have the "Conduit Type" field set to "Catalog Conduit" have the "Size" field populated. Solution 2 - If error appears when opening a model This may be caused by a corrupt DWH file. To Resolve: Close the model and the Bentley Hydraulic and Hydrology software used to open it. Navigate to the directory the model is saved to. Delete the DWH file. Open the model. Reattach all background files. Save the model. Close and reopen to make sure the error is gone.
↧
Forum Post: Grinder Pumps
As I mentioned in a previos conversation, I´m trying to model some grinder pumps about 400 which are finally connected to a Force Main using an extended period simulation (See sketch below). I have tried to follow up the methodology proposed on a previos conversation (see link below) using bolted manholes and extreme flows (using the E/one number of pump operating simultaneously), however I have been not able to come up with a reasonable solution, I´m not sure if the extreme flow factor can be used with the Implicit (Watergems Dynamic Wave) solver, also, since my intention is to model on EPS, I´m not sure either how to include a flow pattern to simulate the on/off grinder pump status due to I am not using the pump element. https://communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum/47679/sewercad---grinder-pump-pressure-model Thanks Fabian
↧
Wiki Page: Viewing hydraulic element properties in the ArcMap platform
Applies To Product(s): WaterGEMS, SewerGEMS, HAMMER Version(s): 08.11.xx.xx, 10.XX.XX.XX Environment: ArcMap Area: Modeling Original Author: Akshaya Niraula, Bentley Technical Support Group Problem I'm double clicking on my elements and the properties for the element aren't appearing. Why? Solution In order for your element properties to appear you'll need to make sure you are double clicking on the elements in your drawing pane with the WaterGEMS / SewerGEMS / HAMMER arrow cursor. This arrow cursor is located on the WaterGEMs / SewerGEMS / HAMMER layout tool and is the first icon on the bar. You will need to first enter an Edit session using the Editor toolbar. When accessing the properties during an editing session the properties window may flash the properties and then quickly disappear. If this happens, stop your edit session, start a new edit session and ensure that you select the WaterGEMS / SewerGEMS / HAMMER personal geodatabase file (.mdb) if the dialog appears asking you to pick what to edit.
↧
↧
Forum Post: RE: Grinder Pumps
Hello Fabian, We are working on the same issue in the Service Request 7000802700 raised by yourself. The resolution will be continued in the Service Request.
↧
Forum Post: RE: Sewergems - Model a storm detention tank
Hi Jesse, Thank you for answer. More or less I have defined the pond for my model, including and emergency weir, but I dont know how to connect de pump with the pond correctly. To be more precise, I have defined two pumps (curves, efficency, elevation On, elevation Off...) connected to a pump station, now I need to connect it with the pond. Thank you for you help. Regards.
↧
Forum Post: Shared Flex tables xml being overwritten on new machine
Hi, my shared hydro flex table xml files in C:\Users\ \AppData\Local\Bentley\SUDA\10 keep being overwritten with the standard ones on my new machine. Any idea where or why it is puling the old xmls in from? effectively I am unable to view my shared flex table on this particular machine as I can see visibly see the original xml files being pulled in/overwritten in explorer as the dgn is opened Thanks, Mark
↧