I’m performing a transient analysis for a water system with three pump stations and two discharge points. One discharge point is to either a tank (open to atmosphere) or open pond and the other is a water treatment plant (open to atmosphere). I read through the D2A tech note and made my discharge points D2A objects. I’m confused on what to input in the Transient Operational pressure drop and flow. For example my max day flow through the 49.9-inch (ID) DI pipe leading to the WTF is 29.9 MGD which would be entered as the flow. What would I enter for the pressure drop? Would I calculate the headloss from the pump station to the discharge point at 29.9 MGD? How about for the force main section that has multiple stations pumping into it? Am I using the D2A object appropriately? Thanks!
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Forum Post: discharge to atmosphere headloss
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Forum Post: RE: CivilStorm
Did you ever arrive at an answer to the storage chamber issue above? I am getting the same result. Thanks!
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Forum Post: Tank Overflow
The maximum level/high alarm at Tank LS 1AA is set at 15 but when graphing the tank depth node it shows the tank overflow at 14. Looking at the result properties it shows that is ever flowing none. I would like to know the reason the tank doesn't reach high alarm and over flow at 14 communities.bentley.com/.../2019_5F00_02_5F00_26-Wastewater-Model.zip
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Forum Post: RE: CivilStorm
Hello Tony, I looked into the history of this and the issue (reference # 716231) was fixed in a patch for versions 10.00.00.45 and 10.01.00.70. Please check which version you are using, by going to File > Help > About. Patches for previous versions are included in newer releases, and there is a later release available: 10.02.00.55. If you're on 10.01.00.70 or earlier, upgrading to fix the problem. If you are on 10.01.00.70 or earlier and cannot upgrade, please let us know and we'll contact you regarding a patch.
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Forum Post: RE: CivilStorm
I am on 10.01.00.70. I'll need to look into whether I can upgrade through my IT group. If a patch would allow me to move forward in the meantime, it would be greatly appreciated. I attempted a work around by defining an arch pipe of similar dimensions and ran into another error "Starting water elevation (0.00 ft) is lower than Pond invert (or minimum) elevation (2211.92)" which is the Chamber System Invert. I think that a solution to either problem would allow me get meaningful results. Thanks for your assistance. Tony Hauser, PE Wood Environment & Infrastructure Solutions, Inc. Asheville, NC
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Forum Post: RE: HAMMER FORCE
Hi Edgar, I have moved your post to the correct Forum for help with HAMMER. Thanks for reporting this - "figure C-1" actually refers to the top figure on that Help page, which is marked as "figure 14-14". "Figure C-2" is actually the second diagram, marked as "f igure 14-15". We'll look to get this fixed in the help in a future release of HAMMER. You can find more information about Force calculations in HAMMER in the following article from our Wiki: Transient Force Calculations in HAMMER
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Forum Post: RE: CivilStorm
Hello Tony, thanks for the information. I have just sent you a private message regarding this.
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Wiki Page: Downloading OpenFlows | Hydraulics and Hydrology Software
Product(s): WaterGEMS, WaterCAD, Hammer, SewerGEMS, SewerCAD, StormCAD, CivilStorm, FlowMaster, PondPack, CulvertMaster, OpenFlows FLOOD Version(s): All Background This article provides information on how to download OpenFlows (water infrastructure) products and upgrade to a newer version. Bentley's OpenFlows products are installed (using the single installation executable) on a Windows desktop computer and are independent from the license. The product is licensed/activated via user sign in to the CONNECTION Client (for version 10.02.XX.XX and greater) or via a license key entered on the computer (for older, SELECTserver-based versions) Read this for more on licensing and activation. The installation executable files can be downloaded either from the Software Downloads website, or through the update service in the CONNECTION Client (a small application that runs in the background on the client computer). See more on these methods below. Generally speaking it is best to upgrade to the latest available version, so that you are equipped with the latest features, updates and fixes to known issues and defects. For more details on what's new between the version you currently have and the latest version, click the name of your product from the "Product Specific" table here and scroll down to the "What's new" section. Who can Download? Access to the Software Downloads website is a benefit of SELECT and ELS subscribers, where upgrades are at no additional cost. NOTE: your organization's designated site administrator(s) have the necessary permissions to download software from the Software Downloads website, or grant that permission to others. Usually your site administrator is someone from your IT or Helpdesk department and is listed at the top of your initial PDF Fulfillment Document. If you do not know who this is you can find out by calling 1-800-BENTLEY 1-800-236-8539 (US and Canada) > option 3 (Licensing) and then option 2 (for problems accessing a Bentley website including login and password issues). If you do not have a SELECT subscription (that is, you are "Non-SELECT"), you would download the software using the link included in the "Fulfillment Document" PDF file from when you first purchased the software. It is suggested that you keep a copy of the installation file(s) for backup purposes. A Note on "Trial" Licenses Note that there are no separate downloads for a "trial" version of the product - everything is handled by product licensing. If your organization has SELECT OpenAccess, your license will contain all Bentley products and you will only be billed for what you use. If you need a separate trial license to use with your Bentley software, please contact your Bentley sales representative. Platforms - Standalone vs. MicroStation vs. AutoCAD vs. ArcMap There are no separate setup files for each platform. Meaning, there is only one single download file, which when installed, will detect if a compatible version of MicroStation, AutoCAD or ArcMap is installed and will create shortcuts for you to open the software in that integrated mode. The "Standalone" version is always included. Note that only WaterGEMS, SewerGEMS and HAMMER have the ability to integrate with ArcGIS/ArcMap, and AutoCAD integration is a separate cost for WaterCAD, StormCAD, SewerCAD and PondPack and the program will check your license to see if AutoCAD integration is available, when attempting to open the "...for AutoCAD" shortcut. Downloading from the CONNECTION Client Starting with the CONNECT Edition of the OpenFlows products, the CONNECTION Client will alert you on new version availability and can download and upgrade for you. You will need to be using a CONNECT Edition version of the software (10.XX.XX.XX), with the CONNECTION Client open and signed in. You may also need to check if you have download permissions assigned to your Bentley account (see link above for details on downloading). Downloading from the Software Downloads Website Your Site Administrator can download the software from the Fulfillment Center section of our website. 1) Sign in to the Software Downloads web site *If you are directed to a page about Bentley iWare (https://store.bentley.com/en/products/iware) this means your account does not have permission to download the software. In this case please refer to the note in red located above. Note: the “Software Downloads” site has been available since March, 2019. As of April, 2019, if you would like to use the legacy Fulfillment Center site, it can be accessed by clicking the “Classic Site” link in the upper-right-hand corner. For more information on downloading from the Fulfillment Center, see the section “Legacy Download Site (Fulfillment Center)” 2) Type in the product name and select the product. For example, you might type in: "HAMMER" or "Bentley HAMMER" NOTE: if you do not see the product when searching, it may be due to filters. Click "clear all" below the filter options on the left side, then search again. Or Search the new Software Downloads website 3) Click the “All Downloads” link, as shown in the screenshot below. Or click Get Software on the new Software Downloads website 4) You should see a list of available versions of the product. If you do not see the product or you do not have access to the Download button, you may not have rights to download and in such case please contact your local IT or call Bentley at 1-800-BENTLEY - 1-800-236-8539 (US and Canada) and choose option 3 for problems accessing a Bentley website including login and password. Note: The latest version of the software should be the first one in the list at the top. You can also tell the version by the third set of numbers after the period.The larger the number the more recent the version. For example 08.11.05.XX would be a more recent version than 08.11.04.XX and 10.XX.XX.XX is a more recent version than 08.XX.XX.XX. The latest two versions of the product are available to download. If another version of the product is needed, please contact Bentley Technical Support. A note on "bitness" (32-bit vs. 64-bit) - For some products, you will notice two different versions of the product, one labeled "32-bit" and the other one labeled "64-bit". Both will download the same exact installation file. The installation will always install both a 32-bit and 64-bit copy of the product, to the same installation folder. The 32-bit instance is installed to the root install folder, and a 64-bit version is installed to a "x64" subfolder. This is done in order to provide support for platform integration. The Standalone version of the OpenFlows product will default to opening the 64-bit version (which has expanded memory bandwidth, helpful for larger models/backgrounds) while the MicroStation and ArcMap integrated versions use the 32-bit instance of the OpenFlows product, because MicroStation and ArcMap are currently only 32-bit. AutoCAD can be either 32-bit or 64-bit. The matching "bitness" of the OpenFlows product must be used in order to integrate. The download site lists both a 32-bit and a 64-bit version to try to help alleviate confusion that would otherwise arise from listing only one or the other; "where is the XX-bit version?". Note: Typically you will only need the main installation file. The "Prerequisites for Bentley Desktop" and "i-model Publishing Engine" are only needed when you plan to export your model to an "i-model". The prerequisites are only designated as "32-bit", but they will work with both versions (for i-model export). 5) Click the download button to the right of the item you are going to download. You will need to click each one individually. Or click DOWNLOAD on the new site 6) Click accept on the terms of service agreement after you have reviewed it. 8) Finally, choose a location to save the file to. By default, on a Windows 7, 8 or 10 operating system or later, this would be: C:\Users\ \Downloads\ This will initiate the download process. The last step is to run the installation file(s) once saved. You will need to be signed into Windows with administrator permissions in order to install software. 9) Once the software is installed, you will see shortcuts on your desktop for any detected platform versions, such as "StormCAD for AutoCAD 2018". It is suggested that you open the Standalone version (for example "StormCAD") first to ensure that the product is properly licensed. If you have questions about licensing and activation, contact your site administrator, and see this article: Activate (license) Hydraulics and Hydrology Products How do I know when a new version is available? See: How to receive alerts on new version availability Cumulative Patch Sets When high priority (work-stopping) defects are resolved, they are included in cumulative patch sets . These patches apply fixes to the respective version without changing the version number. As of this writing, cumulative patch sets are not available on the Fulfillment Center or CONNECTION Client. If you need a cumulative patch set, please contact Technical Support ( Forum | Service Request ). See Also How to receive alerts on new version availability What is the installation order for WaterGEMS, WaterCAD, SewerGEMS, SewerCAD, StormCAD, PondPack, and CivilStorm? Cumulative patch set information and software update information What is an i-model and why does it show as a prerequisite? How do I publish an i-model?
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Forum Post: RE: Tank Overflow
User has a SR open against this issue - will work the issue through the SR and post results here. Larry
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Forum Post: shut off valves
How do I mathematically model a valve that starts in the fully opened position, then closes up while actuated by a stepper motor?
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Forum Post: iris valve
how do we model iris valve mathematically as a shut off valve?
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Forum Post: MODEL VALVE IN HAMMER
Hi community, I am a new user of HAMMER software, and I need to study what happens in an upstream pipe of 2.5 m of diameter when a valve is closed suddenly, I have tried to find tutorials on youtube and there are a couple, the majority related with pump stations. Where I can read about valves and more specific examples for studying thanks.
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Forum Post: RE: water hammer
Thanks for your cooperation, I really appreciate your concern.after trying changing different parameters in the hydropnuematic tank the only effective parameter was the initial gas volume but I had to decrease it to 0.001 m3 which I don’t think is practical, but resulted in reducing the negative pressure at C.V check valve to -1.79 which is within the allowable value , in addition to the negative pressure at the c.v ,the pipe line ends with a vertical standing pipe(vent) since it delivers water to waste treatment plant when modeling the vertical pipe as a two way surge tank with the same diameter as pipe (0.3 m) and base elevation of 15 .11 m ,and max elevation of 22.26 m ,treat as junction (false) resulted in high negative pressure at both c.v and at vent pipe,I don’t what went wrong ,should I just model the vent pipe as vertical pipe with demand .
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Wiki Page: Convergence problems, very slow calculations or "out of range" message when using culvert in series with another outlet component
Product(s): PondPack, CivilStorm, SewerGEMS Area: General Problem One or multiple of the following problems occur when attempting to compute a model, or a composite outlet structure, when a composite outlet structure includes a culvert in series with other outlet components. For example a weir and culvert, with the weir's "Downstream ID" field set to the culvert, or any other outlet component in series with a culvert. Convergence problems - high convergence error seen in the outlet result details, or generally unstable-looking rating curve is seen. Very Slow Performance - the model calculations get stuck for a long time on the step of computing that specific composite outlet structure (an indication of convergence issues) "Out of range" error occurs during composite outlet structure calculations Solution These issue can happen with culverts in series because they tend to be very sensitive to convergence and may "fight" against each other. Possible solutions: 1) Consider if a culvert is needed - if the capacity of the culvert is always greater than the capacity of the upstream components, then the culvert component may not be necessary. Consider doing a quick outlet calculation with the culvert alone to check. If this is the case, simply delete the culvert component and set the Downstream ID of the upstream component to "Tailwater". 2) Check all input parameters and adjust the Convergence Tolerance if needed - review at the root outlet structure component's configuration, as well as each individual component, to ensure that input parameters are correct. If the culvert barrel is flat, consider adding a small amount of slope. If the convergence issues persist, try setting the culvert component's "Convergence Tolerance" to a large number, to make convergence easier to achieve. For example 0.01 or 0.1 feet. 3) These problems can sometimes occur when trying to model an inlet box structure as a weir (using the Weir component instead of the Riser). If there is a box (or standpipe) structure that is discharging directly into an underground culvert (pipe), then try modeling the structure as an inlet box (or standpipe) with Downstream ID set to a culvert A special algorithm will check whether the inlet box (or standpipe) is operating under weir or orifice conditions, and whether the downstream culvert is the controlling flow element. The user can specify the weir and orifice coefficients pertinent to each case. For standpipe and inlet box examples, for PondPack, refer to the "Riser" example file included with the program installation. A profile view of the standpipe can be found in the Help. See Also In the Composite Outlet Structure results, what does the message "CRIT.DEPTH CONTROL" mean for a culvert? In the Composite Outlet Structure results, what does the message "BACKWATER" mean for a culvert?
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Wiki Page: In the Composite Outlet Structure results, what does the message "BACKWATER" mean for a culvert?
Product(s): PondPack, CivilStorm, SewerGEMS Version(s): V8i, CONNECT Edition Area: Modeling Problem In the Composite Outlet Structure results, what does the message "BACKWATER" mean for a culvert? Solution This hydraulic case occurs when the backwater (water surface) profile through the culvert barrel results in the highest HGL HW elevation. Example Message: BACKWATER CONTROL.. Vh= .110 ft Hwdi = .398 ft Lbw = 50.0 ft In this example, for the given pond water surface elevation, the culvert structure is operating under backwater control. That is, a backwater profile was analyzed through the barrel and was found to be the controlling flow regime (IE, not inlet control). Vh refers to a velocity head of 0.110 ft. hwDi refers to the hw Depth of .398 ft at the upstream inside face of the culvert. Lbw = 50.0 ft refers to the length of the section under backwater conditions. If Lbw is less than the culvert length, it indicates that the barrel has full flow conditions for the remaining (downstream) section of the culvert. The HW Depth on the upstream face of the culvert is calculated as: HW Depth = hwDi + ((1+Ke) * Vh) Where: Ke = Entrance coefficient; hwDi & Vh are variables described above If Ke=0.5 for this example: HW Depth = .398 + (1+.5) * .110 = 0.563 ft If upstream invert = 98.50 ft, then the water surface elevation on the upstream face of the culvert = 98.50 ft + 0.563 ft = 99.06 ft. See Also In the Composite Outlet Structure results, what does the message "CRIT.DEPTH CONTROL" mean for a culvert? Convergence problems, very slow calculations or "out of range" message when using culvert in series with another outlet component
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Forum Post: RE: PondPack Interconnected Ponds and Composite Outlet Structures Issue
Just to add - convergence problems and slow performance with Composite Outlet Structures can occur when using culverts in series with other outlet components. See more in this article from our Wiki: Convergence problems, very slow calculations or "out of range" message when using culvert in series with another outlet component
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Forum Post: Total System Outflow Volume is exceeds the Total Inflow Volume
My pond/stormtech system appears to be causing outflow volume to exceed inflow, with a relatively high (20%) continuity error. The pond includes a composite outlet structure consisting of 2 orifices and a weir discharging to a pipe. The result does not make sense to me. Please help! Tony Hauser
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Forum Post: RE: hammer force
Hello Edgar, Generally speaking the results here make sense. Based on the location of the node, the X force is exerted to the right (thus the positive value), the Y force is exerted to the bottom of the drawing (thus the negative value), and the Z force is exerted down because of the weight of the water in the pipe. There are fluctuations in the force values that generally track how the hydraulic grade and pressure are changing over the course of the simulation. If there are further concerns, please provide further details. Translated into Spanish: En general, los resultados aquí tienen sentido. En función de la ubicación del nodo, la fuerza X se ejerce a la derecha (por lo tanto, el valor positivo), la fuerza Y se ejerce en la parte inferior del dibujo (por lo tanto, el valor negativo), y la fuerza Z se ejerce hacia abajo debido a El peso del agua en la tubería. Hay fluctuaciones en los valores de fuerza que generalmente rastrean cómo el grado hidráulico y la presión están cambiando a lo largo de la simulación. Si hay más preocupaciones, por favor proporcione más detalles. Regards, Scott
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Forum Post: StormCAD Stage-Discharge Table/Chart
Is there a stage-discharge table available to review pipe capacities based on available head in StormCAD?
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Forum Post: RE: hammer force
Estimado Scott. Siendo que J-17 y J-29 tienen la misma altimetría, la curva es horizontal, y despreciando el empuje debido a la cantidad de movimiento, la fuerza de empuje sería F= 2 x Presión x Área sen(a/2), de donde si el ángulo es 90 grados el empuje será mayor en comparación si el ángulo fuese agudo. La unión J-29 forma un angulo recto y sus módulos de resultantes: /Rxy/= 120,865N y /Rxyz/= 123,420 N; y para la unión J-17 que forma angulo agudo tiene: /Rxy/=152,137N y /Rxyz/=192,467N. todo esto para cuando t=0 segundos. Es en esta comparación es a mi entender no tiene lógica y viendo que para t=0 no se produce ningún transitorio. saludos, Edgar
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