It depends on what you mean by "Field Measurements". If you don't get data from out in the real water system, where will you get it? You certainly need data from the real system.
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Forum Post: RE: what is the difference between calibration and leak detection in Darwin calibrator?
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Forum Post: RE: pump (acting as a booster in water system) has no effect on system, setup a pump curve, added controls but not seeing any psi change downstream
Bryan, If this is an existing system, I would first check on the demands downstream to ensure they are feasible or accurate. The pump running out on the pump curve also indicates that it is not able to meet demand. It could be possible that the demand downstream may require a larger pump as well to keep pace with demands. The challenge once you get the negative pressures downstream dealt with is the possible negative pressures upstream if the pump (as the inline booster has no storage or source could be adequate to supply the booster pump flowrate). Let us know how it turned out, and if you have any further questions! Martin
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Wiki Page: Bentley SewerCAD
This article provides a list of in-depth TechNotes and FAQs for Bentley SewerGEMS. To search within this page, press [Ctrl]+F. TechNotes and FAQs Creating User-Defined Profile Settings Modeling Force Mains with Air Valves in SewerCAD (GVF Convex Solver) [TN] Pump Station and Pump Combination Curves SewerCAD (GVF Convex Solver) vs. SewerGEMS/CivilStorm (Implicit and Explicit Dynamic solvers) vs. StormCAD (GVF Rational Solver)? Troubleshooting and Understanding LoadBuilder Troubleshooting negative pressures at pumps, junctions, & other node elements What’s New What's new in SewerCAD V8i SELECTseries 2 What's new in SewerCAD V8i SELECTseries 3 What's new in SewerCAD V8i SELECTseries 4 What's new in SewerCAD V8i SELECTseries 5 What’s new in StormCAD, SewerCAD, SewerGEMS and CivilStorm V8i SELECTseries 5 with CONNECT Integration What's new in SewerCAD CONNECT Edition See Also Product TechNotes and FAQs
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Forum Post: RE: Query regarding numeric formatter (WaterGEMS connect edition)
Hello Mark, Thanks a lot for your reply. Can you please be kind enough to also enlighten me regarding the second part of my question. Is it possible to create custom numeric formatters like the one that was used in the starter files supplied with the 'Water Distribution and Modelling' course which I've mentioned in my question?
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Wiki Page: Building and updating a model using ModelBuilder
Product(s): WaterCAD, WaterGEMS, SewerGEMS, SewerCAD, StormCAD, PondPack, CivilStorm, HAMMER Version(s): 08.11.xx.xx, 10.00.xx.xx Area: Modeling Overview ModelBuilder is a tool available in Bentley Haestad products that allows you to create and update a model from a source file. A number of different source files are supported from any platform, such as shapefiles, CAD files, and Excel files. If you have an ArcGIS geodatabase file with modeling data, you can use these source file types if you are working in the ArcGIS platform. The CONNECT Edition versions of the products introduced the ability to use Bentley drawing files (.DGN, .IDGNDB, .IMODEL) in ModelBuilder, as well. The steps provided below will help you create a model and update an existing model with new data. The procedure example below uses shapefiles as the source of modeling information and WaterGEMS as the modeling software. However, the general steps will work for most source file types. It is helpful to make sure that you have proper network connectivity for the elements in your source file. If the network is properly connected to start with, the network will be better connected in the water or storm/sewer product as well. If you are using a source file like a shapefile, ArcGIS geodatabase, CAD file, or DGN file, when creating the file you should make sure to turn on all your snapping options, so the elements are actually connected in source program and there aren't connectivity gaps. You should also make sure that you are laying out the elements in the correct order according to WaterGEMS connectivity rules. This means that every pipe needs to have some type of node element attached at either end. Node elements include junctions, tanks, valves, reservoirs, and pumps. ModelBuilder will allow you to create nodes at the end of pipes, so creating a node in the source file is not expressly required. However, it may allow for less clean up once the data is created. For instance, all nodes created by ModelBuilder that are not already in the source file will come in as junctions. If the end node for a pipe is actually a pipe, you will need to manually change this in your hydraulic model. In addition, if elevation data is available for the nodes, you would be able to map the elevation data from the source file to the node. The water and storm/sewer products have tools that allow you to import elevation data or morph junctions into other element types . Building a model with ModelBuilder As mentioned previously, this example uses shapefiles as the source files to build the model. Given the nature for how the shapefiles were created, there are individual shapefiles for junctions, pipes and reservoirs. This procedure assumes that you have created a blank model in WaterGEMS menus, since we will building the model from the shapefiles. Open ModelBuilder Once a new model is opened, you can open ModelBuilder. The ModelBuilder manager will be displayed. Click the New button to create a new ModelBuilder connection. Note: If you have used ModelBuilder to create models on your computer in the past, existing ModelBuilder connections will be listed in the ModelBuilder manager. If you have an existing connection from a different computer that you want to use, you can click the Import/Export button to the left of the New button. This allows you to import an existing connection. If you import a connection, you would double-click the connection in the ModelBuilder manager to open it. Even though the steps below are likely already completed in the existing connection, this will allow you to make sure the data is correctly entered Specify your Data Source After creating a new file, the ModelBuilder Wizard will open. The first step is the the "Specify your Data Source" section. First, select the Data Source type, and then choose "Browse" to select your source file, as shown. You can select more than one shapefile at a time by holding down the CTRL key on your keyboard and choosing multiple items. Once you have selected the files you want to browse, you do have some additional options that will allow you to filter the selection further. In the screenshot below you can see the three shapefiles that were selected for this example in the lower left. If you click the preview button, you will see information in the shapefile for the highlighted feature. If you did not want to import one of the tables listed, you would simply need to uncheck the box next to it. The WHERE statement in the middle of the dialog allows you to enter a SQL clause that will filter the data from the source so that only specific records will be imported. As an example, suppose you only wanted to import pipes with a diameter of 6 inches. You would check the box next to the WHERE statement and enter the appropriate clause. In this case, "D = 6". After clicking the compute button the source will filter so only the 6 inch pipes are listed. In this example, we want all pipes, so the WHERE clause is not used. Once you have reviewed your data, click Next. Specify Spatial and Connectivity Options The next screen lets you specify the units and connectivity options. This example uses feet as the coordinate unit. For metric models, the coordinate unit will likely be meters. You can choose the coordinate unit from the pull down menu at the top of the dialog. Next, you will choose the connectivity options. The option "Create nodes if none found at pipe endpoint"will create a node at any pipe endpoint that doesn't have a connected node or is not within the specified tolerance of an existing node. To make this feel active, click the check box next to it. For the option "Establish connectivity using spatial data," this allows you to set a tolerance value for connectivity. If there is a node within the specified tolerance, pipes that are imported will be connected to that node. The unit associated with the tolerance is dictated by the coordinate unit you select. Note: It is generally good practice to check both of the connectivity options, as shown above. If there is no junction within the specified tolerance and if no node is created if none is found at the end point, the pipe will not be imported at all. Once this is completed, click Next. Specify Element Create/Remove/Update Options The next steps is to specify if data will be created, removed, and/or updated. When creating a model, the default settings (with Create and Update) selected is sufficient. More information on updating an existing model in ModelBuilder will be discussed in another section below. Click Next. Specify Additional Options This section allows you to choose where the imported data will go and what key field will be used in the field mapping. Typically, the incoming data will go to the current scenario, so the default setting in the first pulldown menu will be sufficient. The key field is important in that will be a unique identifier used so that ModelBuilder knows which element the data in the source file will be assigned to. The options are either Label or GIS-ID. This example will use the Label selection. GIS-IDs can be imported if you want to keep data in your GIS in sync with the hydraulic model you are creating in ModelBuilder. For more information on GIS-IDs, please refer to the product Help documentation or this link . Click Next. Specify Field mappings for each Table/Feature Class In this step, the data source tables are mapped to the desired modeling element types, and data source fields are mapped to the desired model input properties. The tables are listed on the left side of the dialog. In this example, we see tables for junctions, pipes, and reservoirs. Each of these three will need to have data mapped in order to proceed to the next step. If for some reason, you do not want to map one of this, you will need to click the Back button until you are in the first step of the ModelBuilder Wizard and uncheck the table. First, we will set up the field mapping for the junctions. With this highlighted, the Table Type pulldown menu will only show node elements. We will select the appropriate options, in this case "Junction". Next, the Key Field needs to be selected. This needs to be a unique identifier in the dataset. If you are unsure which of the available fields is unique, you can click the Preview tab to view the data. In this case, the shapefile contains a field called "LABEL" that can be used. Note: If the chosen Key Field is not unique, not all elements will be imported. Instead, one instance of a given element will be created, and any subsequent reappearance of the key field identifier will only update the existing element. After selecting the Table Type and Key Field, you will then want to map any relevant data from the source file to the hydraulic model. What you will include will depend on the data you have available. In this example, the elevation data is present. Given that, highlight the field in the table (ELEV, in this case). Next, go to the Property pulldown menu and choose the appropriate property ("Elevation"). If needed, adjust the unit as well. Do this for any field in the source file that you want included in the hydraulic model. Once this is complete, highlight the next table from the list on the left and complete the same steps. For the pipe table, the Table Type "Pipe" is chosen and the Key Field is "Label." Data like pipe diameter and user-defined length is mapped from the source file to the hydraulic model. Note: Entries for the X and Y coordinates (for node elements) or Start and Stop nodes (for pipes) may not be required for all element types. Shapefiles, CAD files, DGN files, and most ArcGIS files include spatial data that allows for the spatial location of the elements to already be included. If the source file is an Excel spreadsheet, X and Y coordinates and Start and Stop nodes will need to be specified. Once all of the field data for the tables have been mapped, click Next. Create Model Now? In the next step, you will choose to create the model. You can also specify selection sets that will include new or updated data. In this case, the defaults are selected. Click Finish. ModelBuilder Summary After the import is completed, a summary window will appear, detailed the number of elements created, updated or removed. In this case, 16 junctions, 21 pipes, and one reservoir were created. In addition, note that two additional junctions were created at the end nodes of pipes. This is because the there were points in the model where no end node was found within the tolerance set in ModelBuilder. By clicking the Messages tab. we can see details of this. After review the summary, close it. Then close the ModelBuilder manager. You will be prompted about synchonizing the drawing. Click Yes. The data from the source file will now be imported into the water or storm/sewer product, as shown below. Updating an existing model using ModelBuilder Source file data is frequently updated as more is learned about the system, new facilities are constructed, or old facilities are abandoned. Because of this, it is often necessary to update an existing hydraulic model with new information from the source file as it becomes available. ModelBuilder provides the means to do this. The process for updating an existing model with ModelBuilder is similar to creating one. The key difference is the settings in the "Specify element create/remove/update options" section of the ModelBuilder wizard. Depending on how the data was changed in the source file, you may want to check all of the options to create new elements in the existing model (if new elements were added), remove items from the hydraulic model (if they no longer existing in the source data), and update elements (if the data for an existing element has changed). In this example, the source file for the model shown above has been changed based on a review of the system. The diameter of one of the pipes has been changed, another pipe and a junction were removed, and some addition pipes were added to the system. To start updating the model, open ModelBuilder. Since this model was already built, there is an existing connection in the ModelBuilder manager, as shown in the screenshot below. Because of this, all that you might need to do is click the "Build Model" button shown in red. This would update the model with new information, including creating any new elements that might not exist currently. However, recall that the "Remove" option in the "Specify element create/remove/update options" was not checked when we created the model initially. For that reason, it will be good to review the settings in the model and make the appropriate adjustments. To do this, double-click the existing connection. The first two steps ("Specify your Data Source" and "Specify Spatial and Connectivity Options") will follow the same steps as found in the relevant sections above. In the next step--"Specify element create/remove/update options"--you will want to make sure the options to create, remove, and update elements are all checked. This will assure that new elements will be created if they are in the source file, elements that are not in the source file are removed from the model, and that existing elements are updated if there is new data present. Click Next. The "Specify Additional Options" and "Specify Field Mapping" sections will be the same as the section above. If you are using an existing ModelBuilder connection, you will likely not make any changes to these, unless there are additional data that you want to map from the source file to the hydraulic model. In the "Create Model Now?" section, select "Yes" and click "Finish." The ModelBuilder summary will appear. Close the summary after reviewing it, and close the ModelBuilder manager. After synchronizing, the updated model will appear, as shown below. The pipe highlighted in red on the left side of the drawing had an updated pipe diameter in the source file. The pipe diameter in the model now reflects this new information. In addition, four new pipes are added to the model on the right side of the drawing, replacing a pipe that was deleted from the source file. Notice that there is a junction that was not removed from the drawing. This occurs because the junction shapefile used in the original creation of the model was not changed to remove it, even though the pipe shapefile was updated to remove the pipe. This shows that there may need to be some cleanup required in a model after using ModelBuilder. In this case, simply deleting the junction will remove it from the hydraulic model. However, you may want to review the source file to make sure that the changes are reflected there as well. Another option would be to use the Sync Out function in ModelBuilder. This is used to change the source file to reflect changes made in the hydraulic model. The following link has additional details on using this feature: Using the Sync Out function to update source files using ModelBuilder See Also Introducing individual Property Connections to your model Updating the Sync Out function to update source files using ModelBuilder Setting Boolean (True/False) Fields using ModelBuilder Import a CAD (eg. DXF or DGN) flle using ModelBuilder Hydraulics and Hydrology Forum
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Wiki Page: Using the Scenario Energy Cost tool in SewerGEMS, SewerCAD and CivilStorm
Product(s): SewerGEMS, SewerCAD, CivilStorm Version(s): 10.00.00.40 and later Area: Modeling Overview This article explains how to use the Scenario Energy Cost tool in SewerGEMS, SewerCAD, CivilStorm CONNECT Edition (10.00.00.40) or later. The images in this article were taken from SewerGEMS, however the same general workflow applies to SewerCAD and CivilStorm as well. See this article for information on performing an energy cost analysis in WaterGEMS and WaterCAD. Workflow Steps Prepare the model Open the Scenario Energy Cost tool Select the scenario to analyze Define the Energy Pricing (ie. Tariffs) Enter pump energy data Compute the Scenario Energy Cost analysis View the results Detailed Workflow 1. Prepare the model a. Develop EPS scenario(s) to be used in energy cost. b. Compute the scenario(s). 2. Open the Scenario Energy Cost tool To do this, go to the Analysis tab and select Energy Costs. This will open the Scenario Energy Cost manager as shown below. 3. Select the scenario to analyze The scenario to analyze can be selected from the dropdown menu on the top-left side of the Scenario Energy Cost manager. Note: The current scenario is selected by default. The Scenario must be an EPS run. 4. Define the Energy Pricing (ie. Tariffs) To convert energy use into energy cost, the applicable energy price tariff must be defined in the Energy Pricing manager. The Energy Pricing manager can be accessed by clicking the second icon on the top-left of the Scenario Energy Cost manager. It can also be opened by selecting the Pumps tab (or Variable Speed Pump Batteries tab), clicking in an Energy Pricing input field and then selecting the ellipses button "…". Energy price functions (tariffs) can be created, deleted and renamed using the buttons on the top-left of this dialog. Once an energy pricing plan has been created, the tariff information can be entered on the right pane. There are two tariff types available. Time of Day : This type of energy pricing considers the cost of energy which varies throughout the day, and is based on the time from the start of the simulation. Once this tariff type has been selected, the fields for the data entry are displayed in the middle of the right pane. Constant : The price of energy does not vary with time. The bottom part of right pane allows you to enter a description of any peak demand charges if they apply to the study by checking the box labeled "Include Peak Demand Charge?". When this box is checked, the two associated fields become available. Enter the values for Peak Demand Charge and Billing Period. The Peak Demand Charge is entered in cost units per peak demand kilowatts. The peak demand is usually taken as the peak demand over some time period, or Billing Period. The Billing Period is used to convert the peak demand charge into a daily cost which is added to the energy cost to obtain the daily cost. Note: You can change the units for the energy pricing by right-clicking on the current units and choose "Units and Formatting". This allows you to change the units and the precision for the data. Click "Close" to return to the Scenario Energy Costs manager. 5. Enter pump energy data to be used in the analysis Select the Pump tab (or Variable Speed Pump Batteries tab) and select the pumps to include in the energy calculations and the corresponding energy pricing data. When the Energy Pricing input field is selected, a dropdown menu is available to select an energy pricing definition. 6. Compute the Scenario Energy Cost analysis To do this, click the first icon on the top-left of the Scenario Energy Cost manager. Note: The scenario must be computed before computing the energy cost. 7. View the results Depending on the item you highlight, different results are available. For instance, if you click on the top-most item in the tree, you will see a summary of results that include information on the energy used, the cost, the volume of flow, and the run duration. Once the energy cost analysis has been computed, the pumps for which the calculation was run will appear in the window on the left side of the dialog. To view the results for an individual pump, select one of them from the window on the left. A Results table will appear on the right side of the manager. You can also view the available results fields as a graph by selecting the Graph tab. To select which result field to view, click the pulldown and select the field. The Pump Usage folder includes this same information, but broken down by the pumps and Variable Speed Pump Batteries that are in the model. The Pump Time Details and Pumps folders show the combined results such as volume, flow, wire power, energy cost and energy usage for all pumps over time. There is also a graph tab that allows you to view these results in a graphical format. Peak Energy Demands shows when the peak occurs and the associated costs. The Results and Graph tabs provide icons to copy and create reports from the data. See Also Using the Scenario Energy Cost and Energy Management tools in WaterGEMS and WaterCAD Scenario energy cost "Time of Use" doesn't match calculation options "Duration" Product TechNotes and FAQs Haestad Methods Product Tech Notes And FAQs.
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Forum Post: RE: Why is my VSPB run time in Scenario Energy Costs higher than my total model run duration?
This has been resolved (reference number 727519). The correct time of use will appear after downloading and installing the latest patch set. This is documented in the following article. Scenario energy cost "Time of Use" doesn't match calculation options "Duration"
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Wiki Page: Scenario energy cost "Time of Use" doesn't match calculation options "Duration"
Product(s): SewerGEMS, CivilStorm, SewerCAD Version(s): 10.00.00.45 Area: Calculations Problem When running a scenario energy cost analysis with a variable speed pump battery (VSPB) the calculated "Time of Use" exceeds the "Duration" in the calculation options dialog. Solution Download and apply the latest patch set. [Reference Number 727519] See Also Wiki: Cumulative patch sets for Hydraulics and Hydrology products Forum: Why is my VSPB run time in Scenario Energy Costs higher than my total model run duration?
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File: Bentley Software Development Methodology
This document describes Bentley's overall software development methodology.
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Wiki Page: Validation or Certification documents for Hydraulics and Hydrology products
Applies To Product(s): WaterGEMS, WaterCAD, HAMMER, StormCAD, SewerCAD, SewerGEMS, CivilStorm, PondPack, CulvertMaster, FlowMaster Version(s): Various Area: Calculations Original Author: Jesse Dringoli, Bentley Technical Support Group Background This article provides access to Validation / Certification documents for the above listed Hydraulics and Hydrology (Haestad) products. These documents are sometimes required in order to widely adopt software. They show that the software's hydraulic results match published or known results. NOTE : you will need to be signed in first or the below links will not work Certification Statement The below document certifies that the Hydraulics and Hydrology products (listed in the header block of this article) have been validated by manual calculations or by a comparison with a previously validated computer program. NOTE : you will need to be signed in first or the below link will not work. Certification Letter - Hydraulics and Hydrology Products Verification Documents CivilStorm V8i SELECTseries 2 (08.11.02.65) The below .ZIP file contains a verification document showing how CivilStorm's results (using the Explicit numerical solver) match known results (based on EPASWMM). The data files are also included. Note that this validation was done using version 08.11.02.65 - future versions could potentially have slight changes in the numerical solver that could make the results out of date. However, these data files have been checked in later versions of CivilStorm, up to SELECTseries 4 at this time. (Please visit the site to view this file) HAMMER V8i SELECTseries 3 (08.11.03.19) The below .ZIP file contains a verification document showing how HAMMER's results match published results. The data files are also included. Note that this validation was done using version 08.11.03.19 - future versions could potentially have slight changes in the numerical solver that could make the results out of date. However, these data files have been checked in later versions of HAMMER, up to SELECTseries 5 at this time. If you are inquiring about QA&R for certification for the nuclear industry please note that HAMMER does not offer the same type of ‘nuclear certification’ as AutoPipe. We do have the aforementioned document and files that can be downloaded below, however, if you'd like to compare the results yourself. If you need verification of other customers in your industry that use HAMMER you should contact your Bentley account manager. Important Notes about the Model Files General - Note that the calculation of the initial conditions is not required with these model files, as they use custom pre-entered initial conditions (by way of setting the "Specify Initial Conditions?" Calculation option to "True", then values were populated in the respective initial conditions input fields). So, after opening the file, you only need to click the Compute button (not the Compute Initial Conditions). Test Case 01 - when utilizing the data file for test case 01, the included quadrantcurves.txt file needs to be placed in the installation folder. You may want to back up your existing quadrantcurves.txt file. Be sure to place the file in either the root of the HAMMER8 installation folder if using the 32-bit version of HAMMER (C:\Program Files (x86)\Bentley\HAMMER8), or the "x64" (C:\Program Files (x86)\Bentley\HAMMER8\x64) subfolder, if using the 64-bit version. If you are unsure of the version being used, go to Help > About HAMMER and look in the lower-left corner (64-bit will be designated here if you're using the 64-bit version). (Please visit the site to view this file) Bentley Software Development Methodology This document describes the overall software development methodology, including development and testing. Note: you will need to sign in first before using the below link. Bentley Software Development Methodology Note: as of July 2017, an updated version of this document is planned to be available sometime in the near future. FEMA Approval StormCAD, PondPack and CulvertMaster are FEMA approved. CivilStorm models using the EPA SWMM solver are also accepted by FEMA. These are listed on FEMA's website: Note: if the pages for accepted hydraulic or hydrologic models are not working, try a web search or locate a cached copy.
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Forum Post: RE: Default Design Constraints for Number of Barrels
Hello Videet, My thoughts: Barrels are provided in Sewer Conduits when the Peak Flows at a certain time of days is exponentially more than the off Peak flows through the conduit; also when the duration of peak flow is very less as compared to the duration of off peak flows. During the Peak hours, the discharge through the conduits is high- resulting adequate self cleansing velocities through the conduits in order to avoid silting and sedimentation issues. However, during off peak hours, the discharge is very less and this results in sedimentation issues over the life of the network. It should be noted that the duration of peak flows is very less and hence adequate cleansing is practically impossible at times. Even slope can be a constraint. Provision of barrels within the pipes provides lesser wetted perimeter (or Area) during off peak hours resulting in adequate velocities to cleanse the pipe. Please refer to the following images for reference. Sewerage Network of GIFT City, Gujarat, India (our part of the world) is a case where Barrels were provided in a Sewer Conduits. However provision of Barrels is uncommon in South Asian countries in general owing to high capital investment involved in manufacturing of precast sewer conduits with barrels. Unfortunately, I lost the photo of the conduit I took when I was at GIFT City for consultation. I tried to share my 2 cents here, senior Bentley colleagues shall put in their inputs to this query soon. Regards, Tanay
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Forum Post: RE: Should any DMA in water supply be sorrounded by boundary pipelines?
Hello Waqas, I assume, you mean to say larger sized pipes on the periphery of the DMA, correct? If so, it entirely depends on the designer and supply conditions. One can also consider feeders instead of supply from boundary pipes. Please see fig below if that helps. If not, Could you please elaborate the query in detail? Tanay
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Wiki Page: Table of contents not showing when using report filters
Applies To Product(s): PondPack Version(s): 08.11.01.51 Area: Output and Reporting Original Author: Jesse Dringoli, Bentley Technical Support Group Problem When using a report filter, why does the table of contents not show in the preview of the full report? Problem ID#: 40634 Solution When you create a new report filter, the default options are to not show the table of contents. To enable the table of contents, open the report filter window, edit your report filter, click the options button in the upper left corner, then click table of contents.
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Forum Post: RE: StormCAD SSR5
Jesse, I am referring to the integration with ProjectWise. Currently we have SSR4 .590 of PW, and when we use StormCAD SSR5 it does not recognize PW as a file storage area. So what version of ProjectWise does StormCAD SSR5 recognize. Regards, Stephen
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Forum Post: RE: StormCAD SSR5
Hello Stephen, Thanks for clarifying. Are you using StormCAD Standalone, or integrated with MicroStation? With StormCAD V8i SELECTseries 5, per the Readme.pdf file in the installation folder, ProjectWise V8 XM and V8i are supported. So, if you are referring to a V8i build of ProjectWise, it should be supported. Note though that some configuration may be needed to integrate. Please see below wiki article: ProjectWise Integration As a side note, as seen on the bottom of this article , integration with ProjectWise CONNECT Edition is supported starting with StormCAD 08.11.05.113.
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Forum Post: RE: StormCAD SSR5
That's exactly what I was looking for, thanks so much
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Forum Post: RE: pump (acting as a booster in water system) has no effect on system, setup a pump curve, added controls but not seeing any psi change downstream
If you can have datta logger results would be great and the characteristic curve of the pump you're using make sure of that ...
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Forum Post: Water quality analysis
In water quality analysis, if the concentration of the source node is given, can WaterGEMS calculate the concentration without giving demand concentration at the end node? Because every time I give concentration at the end node as an initial value, it is not changing after compute. For example, if I take the value zero, it remains zero after compute.
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Forum Post: Modelling a hydropnematic tank with water in bladder (Hammer connect edition)
The transmission system I'm modelling would require the presence of hydropneumatic tanks for surge mitigation. However, our client has specified the use of bladder type hydropneumatic tanks with the bladder being filled with water (rather than air). Is it possible to model the same in Hammer? As far as I understand, the bladder type surge tank provided in Hammer models a tank whose bladder is filled with air. Thanks.
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Forum Post: Mismatch between total demand input through the demand control centre and the total flow from the reservoir
Hello everyone, While carrying out EPS for a pipe network, I am observing that the total demand input using the demand control centre and the total flow from the reservoir is not matching. I have assigned a total demand of 45.9 L/s (distributed among 27 nodes in the model) and after running the EPS, the Reservoir Table shows a Net Outflow of 52.54 L/s. I have not assigned any unit demand What could be the probable reasons for this mismatch? Thanks and Regards, Dina Zaman
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