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Hello, more information on this can be found in Help under the topic “Advanced Darwin Designer Tips.” For more help, please post on our forum: bentleysystems.service-now.com/community?id=community_forum&sys_id=0310b7ca1b1a3110f3fc5287624bcb80

Are you referring to the user of a device like the one seen here? - manholeodoreliminator.com/ If so, this appears to only filter the odors and would not impact the H2S inside the system. The calculated H2S in the OpenFlows sewer products represents the H2S concentration in the aqueous phase. The amount that escapes to the gas phase (and any interaction with odor control) depends on the turbulence, and various coefficients in Henry’s Law and is outside of scope. See more here: bentleysystems.service-now.com/community?id=kb_article&sysparm_article=KB0013632

The link in the playlist and workshop demo videos has been updated: bentleysystems.service-now.com/community?id=community_document&sys_id=5af8042697f18610afb952800153af7a

The link is now fixed. Thank you.

The link in the playlist and workshop demo videos has been updated: bentleysystems.service-now.com/community?id=community_document&sys_id=5af8042697f18610afb952800153af7a

Hi, you will need to select a feature level with more than 5 inlets in order to compute the model. If this is a trial license which defaults to the lowest feature level, you will need to get an academic or commercial license in order to compute models with more inlets. If you need further help, please submit a case to Technical Support via the Support Portal: bentleysystems.service-now.com/csp See also: bentleysystems.service-now.com/community?id=kb_article_view&sysparm_article=KB0057141

The links to the workshop dataset have been updated, apologies for the confusion.

I would recommend reviewing the WaterGEMS training course which you can find as a playlist on the homepage of this RUclips channel. If this is an academic assignment/homework, you may need to consult with your professor regarding constraints. There does not seem to be enough information provided in your post. For example you would need to know how many pipes there are, their length and connectivity, and where the water source is (tank? Connection to existing system? Pumped well?)

The reservoir elevation establishes the source hydraulic grade, and the known demands dictate the outflow. The model then solves the flow and pressure resulting from those knowns.

Hi - the connection of a catchbasin to a manhole would be done using a conduit, which is a sub-surface element. Meaning, surface flow (from the 2D grid, if using the 2D functionality) would first be captured by the inlet (as part of the catchbasin element), which then travels through the downstream pipe under the ground, entering the subsurface vault of the connected manhole element. The 2D surface flow will be appropriately exchanged with the subsurface 1D flow accordingly. If this does not help, please post on our forum with more details (for example with screenshots/illustrations): bentleysystems.service-now.com/community?id=community_forum&sys_id=0310b7ca1b1a3110f3fc5287624bcb80

Please see: communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum/257847/2d-modelling-for-open-channel-in-sewer-gems-need-urgent-help

@@bentleyopenflows thank you..

Please see: communities.bentley.com/products/hydraulics___hydrology/w/hydraulics_and_hydrology__wiki/9401/understanding-length-wave-speed-adjustments-and-their-impact-on-results

The available material is located here: bentleysystems.service-now.com/community?id=community_document&sys_id=fa07cce61b714610dc6db99f034bcb4a

WaterCAD and WaterGEMS are commercial software for hydraulic engineers: www.bentley.com/software/openflows-watergems/

Please see part 9 and 10 of the stormwater fundamentals training: ruclips.net/p/PLLCOESNdmKSIKcmCwfFd_v_DU3loFL18j

A link to the workshop dataset is found in the playlist description: communities.bentley.com/products/hydraulics___hydrology/m/hydraulics_and_hydrology_gallery/273979

understood: Water is always present between base level and minimum water level. This quantity of water will have an effect on Quality of water.

Demand is an assumed outflow, which the model solves around as a "known". For example you may have historical billing meter information on usage where you can reasonably assume that those are the outflows, and then the model will solve around that (pressure, velocity and other results). For some systems (smaller scale or in developing regions for example), you may not be able to assume a specific outflow for the purposes of the hydraulic simulation if that outflow is particularly sensitive to pressure. In those cases, you can use pressure dependent demands (PDD) where you simulate the characteristics of the opening size and the model calculates the outflow based on the pressure. I would suggest reading some academic and engineering reference material such as Bentley's Advanced Water Distribution Modeling and Management or Computer Applications in Hydraulic Engineering books.

Deberá completar el curso en learn.bentley.com - communities.bentley.com/learn_communities/user_learning/w/bentley_institute__wiki/3/learning-unit

Yes, the selection sets will import from the submodel. Thank you for the feedback, we're glad to hear that you found the video useful.

Hi, the available material is linked to from the playlist description

Hello, grid data is created based on a terrain model, when you would typically obtain from an outside source. Creation/obtaining of the terrain data is outside of the scope of the program. Is this what you are asking? Where are you located and what type of project? There is likely a source you can use to obtain the terrain data for your project site.

Yes, please see the following video and article: ruclips.net/video/NnbFxPGp1w8/видео.html communities.bentley.com/products/hydraulics___hydrology/w/hydraulics_and_hydrology__wiki/31790/using-loadbuilder-to-assign-customer-meters-to-the-nearest-pipe-using-taps-and-laterals

For the predevelopment conditions, the Modified Rational Method only considers the peak flow and uses that as the target as explained in the video and in the below article. The implementation in the OpenFlows products assumes that you are only looking at the postdevelopment conditions to size the pond and outlet. If you are being asked to show a predevelopment peak and are using PondPack, consider showing the report in Report Builder that illustrates the constructed postdevelopment hydrograph with the predevelopment peak line shown. Or, you could explain to the reviewer how the method works and that there is only a target peak flow. Another option is to set up a separate scenario with a user defined critical Td set to force the model to show a modified rational hydrograph that peaks at the target peak, but it could be misleading. If further help is needed, please post on our forum: communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum communities.bentley.com/products/hydraulics___hydrology/w/hydraulics_and_hydrology__wiki/6809/understanding-the-modified-rational-method

Hello, the "Lesson1.dxf" file should be found in the "Lessons" subfolder within the WaterCAD or WaterGEMS installation folder. By default that would currently be located at C:\Program Files (x86)\Bentley\WaterGEMS\Lessons

This video assumes you have shapefile data already from some source such as your GIS department. If they maintain a GIS for your water network, they can generate the shapefiles from the software they use, such as ArcGIS.

Please see option #3 in this article: communities.bentley.com/products/hydraulics___hydrology/w/hydraulics_and_hydrology__wiki/27684/modeling-a-check-valve-or-control-valve-in-a-pump-for-transient-analysis

Thank you for your reply@@bentleyopenflows

Can you elaborate on what you are asking for? In general, the pump definition information is entered in the pump definition manager in WaterCAD and WaterGEMS, then you would select the pump definition in the properties of the pump node element. If you are asking how to get the pump definition information (like head vs. flow curve, efficiency, etc), this would typically come from manufacturer specification sheets, or derived from field measurements. For further questions, it would be best to post on our forum: communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum

If you are not sure where to start, I recommend watching the fundamentals training course (see link in homepage of this channel). If you have a CAD drawing of the network, save it to DXF format then use ModelBuilder to import into WaterCAD or WaterGEMS to create the pipes as seen in the article below. For further assistance, please post your specific question on our forum (second link below) communities.bentley.com/products/hydraulics___hydrology/w/hydraulics_and_hydrology__wiki/3070/importing-an-autocad-or-microstation-cad-file-using-modelbuilder communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum

Hi, you may need to upgrade to the latest version (23.00.00.19) or submit the model to Support. See our forum or submit a case: communities.bentley.com/products/hydraulics___hydrology/f/haestad-hydraulics-and-hydrology-forum bentleysystems.service-now.com/csp