I bought the Haestad WDM book in 2001 and never had time to study the WaterCAD CD that came with it. Now that I have more time I wanted to run it. Unfortunately it cannot install on my Win10 64 bit machine. Therefore I tried to install it on Virtual Box Windows XP 32 bit. However it refused to install on that virtual machine too. Any suggestion please. Regards, Teunis
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Forum Post: WaterCAD Academic version that came on CD with WDM book 1e 2001
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Forum Post: Transients in hammer
How should I choose the best pipeline material best for transients in a rough profile? Does it only depend on the friction factor to help dampen the pressure wave?
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Forum Post: Simulation time of transients events
How to select the proper simulation time for different transient events in a pipeline ?
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Forum Post: Annotation for Is Ever Overflowing not working in sewergems
Am working on sewergems model, as per profile and output there is overflow in teh network, however this is not show in the color and size annotations.
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Forum Post: RE: StormCAD - element disconnection notifications
There is flow in my gutter but it is not coming out from outfall and seems lost from somewhere.
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Forum Post: RE: StormCAD - element disconnection notifications
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Forum Post: RE: StormCAD - element disconnection notifications
I also insert some fake catch basins with percent capture 0.001 to start my gutter somewhere like GU16, GU 17 etc.
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Forum Post: RE: StormCAD - gutter geometry setup
Hello Jesse, I upload my file named "working_Part1.7z" for review. Please, review and comment me. Thank you,
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Forum Post: RE: How to assign peak factor in SewerGEMS????
Please note that a subsequent post to this thread has been split off into a separate thread here: Reduction in flow from reduction in peaking factor
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Forum Post: RE: Reduction in flow from reduction in peaking factor
Hello Rohit, Although the peaking factor will decrease as the population increases, the total population would still be increasing and therefore the total "base" flow (before peaking factors are applied) will increase. Although it is certainly possible, it would be unusual to see the decrease in peaking factor be large enough to cause a decrease in the total peaked flow. To see this reduction in flow also cause a reduction in designed pipe size would be even more rare. Further, if using the Automated Design feature, one of the highest priority constraints is that the downstream pipe should be at least as large as the upstream pipe (to avoid clogging). See: Order of automated design priorities for StormCAD (GVF-Rational) and SewerCAD (GVF-Convex) If you are encountering this situation and do not wish to see it occur in your model, the decision of what you do is ultimately up to you as the modeler, but I would suggest considering adding a more gradual decrease in peaking factor with respect to population. Meaning, instead of jumping straight from 3.0 to 2.5, add one or more points in between. For example 3.0, 2.75, 2.5. Or, 3.0, 2.9, 2.8, 2.7, 2.6, 2.5. You can read more about how Extreme Flow Factors work here, where I have a note about this particular situation: Using Extreme Flow Factors
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Wiki Page: Using Extreme Flow Factors
Applies To Product(s): SewerCAD, SewerGEMS Version(s): CONNECT Edition, V8i Area: Modeling Original Author: Scott Kampa, Bentley Technical Support Group Background Extreme flow factors are generally used for computing peak discharges, and therefore are typically referred to as peaking factors or peaking equations. However, since they can also be used to compute minimum discharges, the term "extreme" flow factor is more accurate and will be used throughout the program and documentation. This article applies to SewerCAD as well as SewerGEMS, when the numerical solver is set to "GVF-Convex". Extreme flow factors work by applying a multiplier against the base flow for a given manhole, but that multiplier decreases as the total population or total incoming load at a given point (manhole) in the network increases. This is done because, as the total contributing population increases, there is a decreasing chance that all of the population would be contributing a load at the same time (for example flushing their toilets at the same time). Steps to Accomplish Loading in SewerCAD (or the GVF-Convex solver in SewerGEMS) is done through the Sanitary Load Control Center. Patterns can be applied are generally used for Extended Period Simulations (EPS). With Steady State runs using Unit Loading, a user will want to look at the peak flow to get a conservative analysis of system. That is where Extreme Flow Factors come in. To begin, you need to set up the Extreme Flow. To do this, go to Components > Extreme Flows > Extreme Flow Setups (in V8i, the path is Components > Extreme Flow Setups). To create a new Extreme Flow Setup, click the New button in the upper left. When you do this, a row will be added for each Unit Load associated with the model. You have the option to use a given load by placing a check box in the Use column. The other columns include the Extreme Flow Method and a couple of multipler options. There are a couple of options available to the extreme flow method. If you leave the Extreme Flow Method column set to "None" you can enter a constant. This is the multipler that will be used on the loading derive from the Unit Load in the Sanitary Loading Control Center. However, you also have the ability to use one of several Extreme Flow Methods. To create these, go to Components > Extreme Flows > Extreme Flows (in V8i, Components > Extreme Flows), or click the ellipsis button in the Extreme Flow Method cell in the Extreme Flow Setups dialog. Click the New button and choose from one of the four methods available. If you choose the Table methods, you will have to manually enter the base load value or the population and the extreme flow factor associated with it. If you have a range of populations for each factor, enter a row in the table for the high and low point of the range. For example with the Table-Population method: Note that the keyboard shortcuts work with this table, so if you have the table values in a format like Excel, you can copy and paste the data into the table. If you choose the Equation methods, you will need to enter the coefficients for the equation. For convenience, the equation used to calculate the Extreme Flow Factor can be found at the bottom of the Extreme Flows dialog. NOTE: When choosing the method, be sure that it matches with your unit loads. For instance, if your unit loading is based on population, you should use a population-based extreme flow factor method. Once you have created the Extreme Flows, you must apply it to the Unit Load. Return to the Extreme Flow Setups dialog. In the Extreme Flow Method, select the table- or equation-based method you wish to use. If there is an extra adjustment you need to apply, you can enter a value for the Adjustment Multiplier. The Adjustment Multiplier is applied to the load that has the Extreme Flow already applied. If you do not need to apply any extra adjustment, simply set the values in this column on 1.0. Now that the Extreme Flow Setups are completed, you need to apply them to the Calculation Option of the model. Go to Analysis > Calculation Options and double-click the active calculation option to view the properties. Find the properties field Extreme Flow Setup and set this to the Extreme Flow Setup you wish to use. Now when you compute the model, the extreme flow setup will be applied to the loading of an element. Please note : Extreme flow setups are only used for steady state simulations. They are not used for EPS runs. This is because a peak flow analysis is only valid in a steady state (snapshot of time). Troubleshooting Extreme flow factors are not being applied If it does not appear that the extreme flow factors are applying when computing your model, make sure your model is set to use the GVF-Convex (SewerCAD) numerical solver and that you have the time analysis type set to Steady State, as extreme flow factors do not apply in EPS (extended period simulation). The decrease in peaking factor results in a decrease in flow and decrease in designed pipe size Although the peaking factor will decrease as the population increases, the total population would still be increasing and therefore the total "base" flow (before peaking factors are applied) will increase. Although it is certainly possible, it would be unusual to see the decrease in peaking factor be large enough to cause a decrease in the total peaked flow. To see this reduction in flow also cause a reduction in designed pipe size would be even more rare. Further, if using the Automated Design feature, one of the highest priority constraints is that the downstream pipe should be at least as large as the upstream pipe (to avoid clogging). See: Order of automated design priorities for StormCAD (GVF-Rational) and SewerCAD (GVF-Convex) If you are encountering this situation and do not wish to see it occur in your model, the decision of what you do is ultimately up to you as the modeler, but one option to consider is to add a more gradual decrease in peaking factor with respect to population. For example, instead of jumping straight from 3.0 to 2.5, add one or more points in between. For example 3.0, 2.75, 2.5. Or, 3.0, 2.9, 2.8, 2.7, 2.6, 2.5. See Also Troubleshooting Extreme Flow Results with Count based Unit loads
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Forum Post: RE: WaterCAD Academic version that came on CD with WDM book 1e 2001
Hello Teunis, The version of WaterCAD included with your 17-year-old book is no longer supported by any version of Windows that Microsoft still supports. You can try running it in compatibility mode on your XP virtual machine, but there are no guarantees that it will run, and it is also not an accurate depiction of what WaterCAD currently has to offer. Further, the software itself is only a supplement and is not required to follow the book text. If you are interested in WaterCAD for hydraulic modeling for academic studies, I would recommend our Computer Applications in Hydraulic Engineering book, which includes WaterGEMS (which contains all of WaterCAD's functionality plus more): store.bentley.com/.../9781934493168--Computer-Applications-in-Hydraulic-Engineering
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Forum Post: RE: Transients in hammer
Hello Abdelrhman, There are several factors related to the pipe material: cost, pressure range, roughness and wave speed. Hydraulically, the material of the pipe in HAMMER determines the roughness (and thus friction headlosses) and the wave speed. Friction can impact how quickly the energy from a transient wave is dissipated, and the wave speed can impact how waves reflect and interact with each other. There are many other things that can help prevent or dampen surge waves, but for a pipe, the main factor is the roughness. The pipe material would also determine the allowable operating pressures. Meaning, the maximum and minimum pressures, beyond which the pipe may break. As far as which pipe material is best, that would depend on the situation and your engineering judgment. It may be a trade-off between budget/cost, pressure range and impact on friction dampening, and the use of other devices that could impact how the waves are suppressed or dampened. In this situation, you can use the power of Scenarios and Alternatives in HAMMER to try multiple different pipe materials and combinations of protection devices and analyze the transient impact. See: Viewing HAMMER results for multiple scenarios
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Forum Post: RE: Simulation time of transients events
Hello Abdelrhman, The simulation duration in HAMMER depends on the situation. In general you'll want to run it long enough to see the pressure waves from your transient event dampen and the model approach its final steady state condition. You can read more about this in our Wiki here: What should the run duration of a HAMMER model be set to?
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Wiki Page: Active Topology Management
Applies To Product(s): WaterGEMS, WaterCAD, SewerCAD, StormCAD, SewerGEMS, PondPack, CivilStorm, and HAMMER Version(s): CONNECT Edition, V8i, V8 XM Original Author: Scott Kampa, Bentley Technical Support Group Overview The purpose of this TechNote is to discuss active topology management in the Bentley Hydraulics and Hydrology products. Additional information on active topology management can be found by opening the product, going to the Help documentation, and searching for Active Topology. Background See bottom of article for a video demonstration. In the analysis of the water or wastewater system, it may be helpful for the modeler to assess future (or past) configurations of the system. This can include not only a change in data at a node, but also may include additional nodes and pipes that do not currently exist in the current system. For this reason, a modeler may need to add elements to the existing model. However, when this is done, the new elements are present in each scenario, even those that should depict only the existing elements. It is in these situations that you would use Active Topology management. Due to the way that the data is stored in the database file, it is not possible to physically add or remove elements from one scenario with affecting all of them. Active Topology management allows the user to create alternatives in which selected elements are displayed differently in the drawing view. This ability allows you to easily create before and after scenarios for projects. When the elements are inactive, they are not included in the network hydraulic calculations. Inactive elements are also not evaluated when displaying results, such as contour plots and profiles. Active Topology Alternative The active or inactive status of an element is stored in the Active Topology Alternative. To open the Alternatives manager in CONNECT Edition, browse to the Home tab and choose Alternatives. In V8i or V8 XM versions, browse to Analysis > Alternatives or click the Alternatives icon in the toolbar. Expand the list of alternatives for Active Topology to view the available alternatives. There will be at least one active topology alternative available. To open the alternative, you can double-click on the alternative, or right-click it and select Open. The dialog will include a tab for each element type. When you click on one of the tabs, a list of all of the elements of that type will be shown. There will be one editable column available: “Is Active?” If there is a checkmark for a given element, it means that the element is active in the model. If you unclick the box, the element will be inactive. If you make an element inactive in the model (see section below), this change will be applied to the Active Topology Alternative associated with the scenario associated with it. An unlimited number of active topology alternatives can be created. For the steps to create new scenarios and alternatives, see the Scenarios and Alternatives TechNote or the Help menu for your program. Selecting inactive elements in the model There are a number of ways to make an element active or inactive. Besides making the changes directly to the active topology alternative, there are items available in the individual element’s properties dialog or in the element FlexTable. In either of these, there is an item called “Is active?” You can make the element active or inactive by changing the value of this item. There is another method available for making changes to the active topology of the model: the Active Topology Selection Tool. In both the CONNECT Edition and the V8i/V8 XM versioins, this can be accessed by going to Tools > Active Topology Selection. Note: Changing the active status using this tool only affects the Active Topology Alternative of the current scenario. If you want to change the active status for a different scenario other than the current one, you will need to change scenarios first. After select the Active Topology Selection Tool, a Select tool will open. Selecting elements with this can make them active or inactive. By default, the Add icon is selected. When this is selected, you can choose elements individually or drag a box around it with your mouse. When they are selected, they will appear red on the drawing pane. Note: items that are already inactive will also appear in red. When you click the green checkmark in the Select tool, the items will be now be inactive for the active scenario. This tool also allows you to remove items, making them active again. If you select the Remove icon, when you select items in the drawing and select the green checkmark, the items will be active in the active scenario. The Active Topology Selection tool also allows for more advanced methods of selecting items in the drawing. The “Select by Polygon” icon allows the user to draw a polygon on the drawing. Depending on whether the Add or Remove icon is selected, the elements within the polygon will be added or removed from active topology. The Query icon allows the user to select elements in the model based on a preexisting selection set, a custom query, or from a number of standard queries. The Find icon is helpful if you know which element you would like to make active or inactive, but do not know exactly where it is in the drawing. This will open a new dialog in which you can type the name of the element or choose from a list after selecting the icon in the upper right. If you are selecting items and choose the wrong elements, you can choose the Clear icon on the right, which will clear all of the selections. It is important to remember that changing the active status using this tool only affects the Active Topology Alternative of the current scenario. If you want to change the active status for a different scenario other than the current one, you will need to change scenarios first. Note: Selecting a node element to become Inactive will also select all adjacent pipes to become Inactive. This is because all pipes must end at a node. Displaying Inactive Elements Inactive elements are differentiated visually from Active ones in the main drawing pane. This is controlled in the Options menu found in the Tools pulldown. Find the item “Display inactive topology.” If this is checked, the inactive elements will appear in the drawing pane as the color identified to the right of the “Display inactive topology” item. If this item is not checked, the inactive elements will not be displayed in the drawing pane at all. Inactive elements will appear in FlexTables but calculated values will be set to N/A. Inactive elements are also available for inclusion in selection sets. If you do not want inactive elements to be displayed in the FlexTables or reports, you will need to filter the column "Is Active?" to only elements with the entry "True" are included. Common procedures The user can set up different active topology alternatives any number of ways. Different users may be more comfortable using one method over another. As you work with a model, you may end up using different methods for making certain elements active or inactive. Below are two possible instances. Consider a situation where you have a model that has the current layout of the model elements. The scenario is called “Current Layout.” The base active topology alternative is called “Current active elements.” You now would like to model a future scenario in which additional demand nodes are added to the right side of the model. In order to model this, you will need to create a new Active Topology alternative and a new scenario. Create a new child Active Topology alternative called “Future active elements.” Then create a child scenario called “Future Layout.” Double-click on the scenario “Future Layout” to open the properties and set the active topology alternative to “Future active elements.” Then make “Future Layout” the current scenario. Once this is complete, add the new elements to the model. Notice that they are active in the drawing pane. Now change the scenario back to “Current Layout”. Notice that the new elements are now inactive. This is because the default setting when is inactive when the alternative cannot be identified by the active scenario. Now consider a case where you add the future elements before creating the new scenario and active topology alternative for the future layout of the system. In this case, all of the elements are active in both scenarios. You now want to make the elements in the red box in the screenshot above inactive. You can do this through the FlexTables or the properties of the individual elements, but the most efficient way to make these inactive would be to Active Topology Selection tool. Using one of the steps above, make the items in the red box above inactive. The drawback to this method is that the same elements are inactive in the scenario “Future Layout” as well. This is because child alternatives inherit data from the base alternative. This can be fixed quickly by going to the “Future Layout” scenario and opening the Active Topology Selection tool again. The inactive elements will appear in red. Select the Remove icon and select the elements you want to make active. When you select the green checkmark, the will be active again. Switch back to the scenario “Current Layout” and you will see that the elements are still inactive in that scenario. www.youtube.com/watch See Also How do I use and display Active Topology for elements on the ArcGIS/ArcMap platform? Product TechNotes and FAQs Haestad Methods Product Tech Notes And FAQs [[General WaterGEMS V8 FAQ|General WaterGEMS V8 FAQ]] Hydraulics and Hydrology Forum
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Forum Post: RE: How to sort the graphs in the new version of WaterGEMS 10.01.01.04 (30/4/2018)?
Hello, For WaterGEMS CONNECT Edition Update 1 onwards we have introduced a "tree" type structure with the ability to create folders for storing graphs. You can create as many folders as you like and store graphs as per your requirements. The sorting functionality was not available before. Can you explain how are you using this? Which version of WaterGEMS did you have previously? Can you provide a acreenshot of the functionality you were using? In addition to my response here is a reference article which details the different features in the latest WaterGEMS version (10.01.01.04) What's new in WaterGEMS CONNECT Edition Update 1 (Build 10.01.01.04) Hope this helps.
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Forum Post: 2 receivers & control the flow
Hi i have 2 receivers with the same elevation and 5 junction i want receiver 1 give me 5 l/s and receiver 2 give me 3 l/s junctions need 8 l/s i do not want to use fcv i do not want to change the receivers elevation is that possible for watergems? is there any way to fix it? (i used initial conditions for pipe but dose not work) thanks
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Forum Post: RE: 2 receivers & control the flow
Hello, Which product are you using? WaterGEMS or WaterCAD? By "Receivers" do you mean "Reservoir"? For the reservoir element you have to specify the initial water level (head). The flow supplied downstream to your junctions will depend on the demand you input to this junctions. The reservoir will supply based on head only. If you wish to control the flow from the reservoir you have to use an FCV. The governing hydraulic condition for is the "Elevation" field. In WaterGEMS / WaterCAD this is the constant water level you have to input. Can you share a snapshot of your proposed system with key inputs? We can help you better if the system is understood.
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Forum Post: RE: 2 receivers & control the flow
If you don't want to use some kind of valve to control the flow, then you can do it by using a smaller pipe from the reservoir that you want to supply less. Why is it that you want to control the flow exactly? Depending on how the reservoirs are fed, the water level in the one with more outflow will drop faster than the other, thus reducing the flow from that reservoinr. You would need to use a Tank element rather then a Reservoir element to model this process.
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Wiki Page: Error using profile auto-create feature: Start node ?? and stop node ?? are the same node. Looped links are not supported.
Product(s): SewerGEMS, CivilStorm, StormCAD, SewerCAD Version(s): CONNECT Edition Area: Modeling Problem When trying to use the Auto Create Profiles feature in the Profiles manager, the following error message occurs: Haestad.Calculations.Dynamic.InputCreator.ValidationException: Start node ?? and stop node ?? are the same node. Looped links are not supported. at Haestad.Maryland.Validation.LinkValidation.CreateLinkUpstreamAndDownstreamSameNodeNotification(Int32 scenarioId, Int32 linkId, String startNodeInfoStr, String stopNodeInfoStr, IList userNotificationList, Boolean inCalculation) at Haestad.Calculations.Dynamic.InputCreator.NetworkBuilder.BuildConduitLinks() at Haestad.Calculations.Dynamic.InputCreator.NetworkBuilder.BuildLinks() at Haestad.SewerGEMS.Calculations.Dynamic.InputCreator.SWGNetworkBuilder.BuildLinks() at Haestad.Calculations.Dynamic.InputCreator.NetworkBuilder.CreateNetworkParser(IProgressIndicator aprogressindicator, IHFLDNetworkParser& networkParser) at Haestad.StormSewerProduct.Support.Actions.Tools.AutoCreateProfileAction.CreateProfiles(Int32 elementId, ProfileDirection direction) at Haestad.StormSewerProduct.Support.Actions.Tools.AutoCreateProfileAction.FormClosed(Object sender, FormClosedEventArgs e) at System.Windows.Forms.Form.OnFormClosed(FormClosedEventArgs e) at System.Windows.Forms.Form.WmClose(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) Solution First, make sure that you are using the latest version of the product. Upgrades are included with the Select service agreement. You can use this link to access the latest version: Downloading Haestad / Hydraulics and Hydrology software . If that doesn't help, try the following steps: First, close the model but leave the software open. Go to File > Database Utilities > Compact Database. Select the database file associated with the model and, when prompted, choose the option to purge the model to save space. If that doesn't help, close the model (you can leave the software open). In File Explorer, browse to where the model files are saved and create a new folder. Copy just the .stsw and .stsw.sqlite files into the new folder, then open the model files from the new folder location. If that doesn't help, you can try import the database file into a new drawing by going to File > Import > (product name) database. See Also Options for creating Profiles
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