Hello Joel, I see the location ID listed in a sample model. If you have another model you can test to see if the same issue occurs, please give that a try. There are also sample models found at C:\Program Files (x86)\Bentley\HAMMER\Samples. I tested this with the air valve sample file located in this location. If the issue occurs for multiple models, please let me know what version of HAMMER you are using. Regards, Scott
↧
Forum Post: RE: A third scenario is not displayed in a Custom Report Transient Results Time History Graph in HAMMER.
↧
Forum Post: RE: Cybernet to Watergems
Hello Jackie, This is likely related to the time. The files are typically available for a week. Will you be able to wait until next week to get the file? Jesse is currently unavailable but will return next week. Regards, Scott
↧
↧
Forum Post: RE: SWMM 5.1 Results differ from Sewergems SWMM Calculation Results
I have looked at this article before and adjusted quite a few of the SWMM calculation options. None have reduced the error at the one inlet's surface node however. Additionally, I believe the same options are exported to the SWMM file so when I run it within SWMM 5.1, the results shouldn't really be that different..
↧
Forum Post: Best Program to use for Modeling Reservoir Drawdown
What is the best program to use to model reservoir drawdown? I have a dammed reservoir with two low-level outlets that discharge into the local sewer system. WaterCAD is not the right program to use, since it models pressurized pipe flow, but it does have a reservoir element available. I have looked at flow leaving the reservoir at normal pool WSEL to determine max flow out of the low level outlets, but the system is truly a mixed gravity flow system not pressurized pipe, and I would like to see surcharging in the manholes (if that occurs). I have also looked at this in SewerGEMs but I don't see a good way to represent my reservoir, should I be using a pond with an elevation storage curve and no composite structure? I am modeling drawdown on a sunny day so no storm event is occurring, I assume the pond element provide flow to the network based on normal pool if no storm event is occurring? Ideally, I would like to look at flow in the low level outlets over time as the reservoir WSEL decreases. Normally I would perform this analysis in HEC-HMS, but received the network already in WaterCAD. I looked at this article comparing the programs and am not sure which is the best solver to use in SewerGEMs for this application? https://communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum/94178/sewercad-vs-sewergems
↧
Forum Post: RE: Best Program to use for Modeling Reservoir Drawdown
Can you explain this project a little more? I've never heard of a reservoir discharging into a sewer. Is this clean water or dirty water? Can you explain how the system is supposed to work? Is this an existing system or one being designed? If there are pipes that are not flowing full, then you should be using a sewer model such as SewerGEMS. You would model the reservoir as a pond element. If there is no inflow to the pond, you would just watch the pond drain during the model run.
↧
↧
Forum Post: RE: Best Program to use for Modeling Reservoir Drawdown
Hi Vanessa, You can try modeling your reservoir as a pond with a pond outlet structure to discharge from the pond. Since you do not wish to add any storm event you can add inflow. This way you can have gravity flow from your pond into downstream channels or conduits. Are you modeling a water supply system whose source is a reservoir?
↧
Forum Post: RE: SWMM 5.1 Results differ from Sewergems SWMM Calculation Results
Hello Jared, We are looking into this issue. I will let you know when I have some more information for you. Regards, Scott
↧
Forum Post: RE: Cybernet to Watergems
Yes, thank you. I will be sure to get it right away this time. Do I need to re-send anything?
↧
Forum Post: RE: Cybernet to Watergems
Hello Jackie, We likely have the files that we need, so you shouldn't need to resend anything. However, if it turns out that we do need anything, we will definitely let you know. Regards, Scott
↧
↧
Forum Post: RE: SWMM 5.1 Results differ from Sewergems SWMM Calculation Results
Hello Jared, There were improvements made to the Explicit solver in relation to the the SWMM solver with regards to pond outlets. This is the reason that the operation and results are a little different. The results tend to be better in SewerGEMS for cases like this. There are a couple of things you can try to improve the continuity error in SewerGEMS. If you set the the time step to 5 seconds and the output increment to 120 seconds, there is an improvement to the continuity error. Setting the time step to 10 seconds and the ouput increment to 5 minutes improves it further. Please let us know if you have any questions. Regards, Scott
↧
Forum Post: RE: Hammer - Check Valve Characteristics - Reverse Velocity vs Deceleration
Thank you Sushma
↧
Forum Post: RE: Cybernet to Watergems
Hi Jackie, I have re-uploaded the converted model and sent you a new download link via private message. The previous link had indeed expired.
↧
Forum Post: import catch basin data
Hi, I have huge area with divided catchment areas, I want to input Catch basins with selected locations that I have in X,Y coordinate, Is there any way to input my data to ease my work instead of manually putting each. I am using SEWERGEMS with AUTOCAD and SEWERGEMS STANDALONE... Thanks,
↧
↧
Forum Post: RE: import catch basin data
Hi Shankar, Do you have an Excel file with the X,Y coordinates for all the catchments? If so, then you can use the ModelBuilder Tool to import data from the Excel File. See the below article for details on how to do this; Using ModelBuilder to Import External Data Hope this helps.
↧
Forum Post: RE: import catch basin data
Thanks...
↧
Forum Post: water age
I'm running a 288-hr water age scenario in WaterGems Connect. In a few areas, the results do not make sense toward the end of the simulation. For instance, water entering a dead-end pipe has a certain age, but downstream junctions are showing younger water age than certain upstream junctions. Various things occur on this pipe (demands withdrawn, pipe diameters changes, velocity changes, etc.), but I would expect that dead-ends would produce increasingly aged water the farther downstream it goes. Will you please explain how the program works or where I may be going wrong? Thank you.
↧
Wiki Page: Drawing pane is blank or empty - no model elements appear
Applies To Product(s): WaterGEMS, WaterCAD, SewerGEMS, SewerCAD, StormCAD, HAMMER, CivilStorm Version(s): 08.11.XX.XX, 10.XX.XX.XX Area: Data Input Original Author: Sushma Choure, Bentley Technical Support Group Problem No elements appear in the drawing (the drawing pane is blank) when the model is opened, or after importing data through ModelBuilder. Solution Go to View > Zoom > Zoom Extents. This will pan and zoom to fit all elements in the drawing pane. There may be some elements or parts of a background layer far off in the distance from each other. Try turning off the background files, then zoom extents per step 1 above. After using zoom extents, go to Edit > Select All (or press CTRL+A with the drawing pane active) and see if something highlights in the drawing pane.The default highlight color is red; look for a small red dot. If you see something, try changing your drawing style from CAD (which is the default) to GIS style, which will help you see the elements (and then you can zoom into them). This is done from the icon on the element symbology manager. If you do a search for "drawing style" in the help documentation there are step by step instructions for how to do this. You can also check the below article under See Also. If there are elements far off in the distance causing Zoom Extents to zoom too far out, this could be a problem with the spatial reference of the data that was imported (or a units issue) or possibly a color coding legend inserted far off in the distance. Try right clicking on any color coding definitions in Element Symbology and choose the "remove legend" option if present. Try going to File > Database Utilities > Synchronize Drawing. Check all node flextables for "NaN" or "infinity" for the X/Y coordinates. Use the yellow Edit button to add the X and Y fields if not displayed, then sort on both fields and look at the top and bottom. Do this for the flextable corresponding to each element type in the model. If you see any with "NaN", "N/A" or "Infinity", fix the coordinates of these nodes (right click the row header > zoom to > change the X or Y in the properties) or delete the element (right click > zoom to > right click in the drawing pane > delete). If needed, you can export the flextable as a CSV file using the export button in the top left corner, then change the X and Y in Excel to the correct value or to something else like zero, then use Modelbuilder to only "update" changes, mapping the label as the key field and the X and Y fields. (or use the "Select column" option in the flextable, then use the Paste button to paste. If there are many elements with bad coordinates and you just imported them, correct the geometry in the source file first, then rebuild the model with Modelbuilder. Try deleting the model's .WTG.DWH file (with the same base file name as the model, in the same folder), or move only the .WTG and .WTG.SQLITE files to a new folder and re-open from there. The .DWH file contains information on how the drawing pane appears. If the problem is not model-specific and nothing is showing in the drawing pane (the screen is gray / grey), the problem could be related to your video drivers. See: Updating video drivers and troubleshooting video hardware issues See Also Building a model with Modelbuilder Importing dxf as background Updating video drivers and troubleshooting video hardware issues
↧
↧
Forum Post: RE: WaterCAD Gray Background Upon Startup, Elements in Layout are not visible
Nicholas, is this issue only occurring with specific model files, or with all models? Try one of the sample files located in the Samples folder within the WaterCAD installation folder. If this is happening with all files, the problem could be related to video hardware. If you have both an onboard (such as "Intel HD") and discrete (such as NVIDIA) video hardware/graphics card, check to make sure that WaterCAD is using the discrete video hardware. You can also try updating video drivers. See more here: Updating video drivers and troubleshooting video hardware issues If the issue is model-specific, I concur with Scott's suggestion of isolating the WTG and SQLITE files, in case the .DWH file was corrupted.
↧
Forum Post: RE: SewerCAD - Grinder Pump Pressure Model
Hi Jesse, I wanted to bring this old conversation up since I´m dealing with a similiar problem, I´m trying to model some grinder pumps and I´d like to know if do you happen to have a model example using bolted manholes you can share with me. Thanks Fabian
↧
Wiki Page: Modeling Underground Storage Chambers
Applies To Product(s): PondPack, SewerGEMS, CivilStorm Version(s): V8i, CONNECT Edition Area: Modeling Original Author: Jesse Dringoli, Bentley Technical Support Group Overview The format of storage chamber specifications may differ depending on the manufacturer. This article explains the format that PondPack, SewerGEMS and CivilStorm expect and how to properly enter your storage chamber. Entering Storage Chamber Information When modeling an underground storage chamber for detention in PondPack, there are five available section types: Circular, Box, Pipe Arch, Depth-Width curve and Incremental volume per unit length. These are defined in the Storage Chamber manager, under Components > Storage Chambers: In many cases, your storage chamber will not exactly conform to a circular, box or pipe-arch shape, and the manufacturer may give specifications on the chamber in terms of a depth-cumulative storage table. Consider the following example manufacturer data: First, it is important to note that the volume information entered in the Storage Chamber manager is for the chamber volume itself, not including additional storage from the surrounding fill. The manufacturer may provide volume information for the "full" or "total system" storage, including the storage provided by the surrounding fill. In PondPack, the fill is accounted for outside of the storage chamber manager (see further below.) In the above example case, let's assume that the given table is for the chamber only, which is what PondPack requires. Let's also assume that the table is for the whole storage chamber and that the chamber is 8 feet long . With this information, the best way to define the storage chamber in PondPack is to use the "Incremental Volume Per Unit Length" storage chamber type. This is selected by clicking the New button and choosing "incremental volume per unit length". You must then enter a table of depth versus incremental volume per unit length, whose unit is cubic feet per foot or cubic meter per meter. You must then enter the "Effective length" of the chamber, which is how long a single storage chamber is. As you can see from the name and units, the table you enter represents the storage volume at each vertical increment (depth) of a one-foot section of the given chamber. This allows you to re-use the same table for a given cross sectional shape, for different total chamber lengths. PondPack simply multiplies the volumes by the "Effective length" to achieve the total storage for the entire chamber. Furthermore, you can see that the table that PondPack requires is in incremental volumes. Meaning, the volume that you enter for each depth is the volume between that depth and the previous depth, not the cumulative volume. Therefore in our example case, you can see that the given table cannot be directly entered, since: It represents the volume of the entire chamber, not just a one-foot section It is a table of cumulative volume versus depth, not incremental. So, we must take the information from the manufacturer and modify it, given PondPack's required format. To change the volumes to represent a unit volume (one foot section), you would simply divide them by the total length. In this case, the chamber length is 8 feet, so you would divide each volume by 8 to get the unit volume: Then, you would convert the table to show incremental volumes instead of cumulative, by subtracting the previous cumulative depth from the current cumulative depth: Now you're ready to enter the data. After adding a new Incremental Volume Per Unit Length chamber to the Storage Chamber dialog, click the "Depth-Incremental Volume per unit length" field on the right side and click the ellipsis button next to the "collection". This will open the Depth-Incremental Volume Per unit length table. You can either manually type in the values you computed, or you can copy/paste. To do this, highlight all the cells in your spreadsheet, press CTRL+C to copy, then click the first cell under the Depth column in PondPack and press CTRL+V to paste. Note: make sure the correct units are used. For instance in the above example, depths are in inches. If the depth field in the table is not in the right unit, right click the column header, choose "units and formatting", then change the units accordingly. Next, enter the effective length of a single chamber (8 feet in the example case) and the maximum width. The maximum width is needed because it cannot be derived from the depth-volume curve, but is important when considering the surrounding fill. Setting Up a Storage Chamber System in the Model Now, in order to use the storage chamber in the model and configure the surrounding fill, you must select it in the properties of the pond. For the "Pond Type", choose "Storage Chamber System", then select the storage chamber that you created from the "Storage Chamber" field. Lastly, enter the parameters of the surrounding fill: The product takes all the information about the chamber(s) and surrounding fill and constructs an elevation-volume curve to use during calculations. In PondPack, to see this curve, right click on the pond element and choose " Pond Volume Results Table ". CULTEC and StormTech Chambers If you'd like to use a storage chamber from CULTEC or StormTech, storage chamber library files are available. For most recent versions, these are included already. For older versions, these can both be downloaded from selectservices.bentley.com. (note: a CULTEC update from May 2015 is available here ) The CULTEC.xml and StormTech.xml files can be added to PondPack (or versions of SewerGEMS and CivilStorm that support storage chambers) under Components > Engineering Libraries. Right click "Storage Chamber Library", choose "Add existing library..." and select the .xml file. To import these storage chambers in the storage chamber manager, click the purple engineering library book, choose "import from library", select the storage chamber, then click "select". You'll now be able to use the storage chamber in your model. Note: recent versions of SewerGEMS and CivilStorm include the StormTech, CULTEC and Brentwood libraries. See Also Pond and pond outlet assumptions in StormCAD, SewerGEMS, CivilStorm and SewerCAD
↧