Jesse, I uploaded the file "Diamantino_5" with the .stsw and .stsw.sqlite but I am still not so sure about what´s is happening. All I could notice is that, at some point after running various scenarios (both analysis and design), deactivating the check box for showing inactive topology starts the loop. I tried a few times today cleaning the folder - it worked -, and a while later when the folder was full of complimentary files the model looped. Now when I uploaded the file, I opened it and compacted database, ran a few scenarios and didn´t get the loop, but I dont want to compact database all the time because I have many notes in my model. For now I´ll keep emptying the folder. Thank you
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Forum Post: RE: Error - "updating conduit descriptions"
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Wiki Page: Print Preview > Fit to Page shows blank page
Product(s): WaterCAD, WaterGEMS, SewerGEMS, SewerCAD, CivilStorm, StormCAD, HAMMER Version(s): 10.XX.XX.XX, 08.11.XX.XX Area: Output and Presentation Problem When trying the print a model layout, the "Fit to Page" option of Print Preview shows a blank page with no model layout visible at all. or Print preview screen is blank when DXF attached as background When a .DXF is attached as a background file, the Print Preview screen was appearing completely blank. Without the .DXF attached, the model was shown in Print Preview as Normal. Problem ID#: 73627 Solution This is likely caused by a corruption in the model's .dwh file. This file can impact the appearance of the model in the drawing [pane and in functions like Print Preview. To resolve this, go to Tools > Database Utilities > Update Database Cache. For the CONNECT Edition software go to File > Database Utilities > Update Database Cache If that doesn't help, try the following. Close the model and browse to the location that the model is stored. Find the .dwh file--it will be called something like "model.wtg.dwh"--and delete this. This file will be regenerated when you reopen and save the model. With that file deleted, reopen the model and go to File > Print Preview > Fit to Page. For the CONNECT Edition reopen the Print Preview. The model layout should be visible in the Preview window. Blank Print Preview with a .DXF background To fix this issue, open the .DXF in AutoCAD and save down to an older version of DXF. For example, AutoCAD 2004, R12/LT2, 2010. The DXF will now appear in Print Preview. See Also Using the fit to page printing in the standalone platform
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Forum Post: RE: Property connection base flow not accounted for in some conduits
Hello Joao, Thank you for sharing your model. I was able to see the results you are seeing. This can happen for particularly low flows from Property Connections which causes unrealistic flow in the downstream conduit. The flow changes in the conduit do not match the incoming flows from your property connections. This occurs due to a low value of the Convex Routing Factor "C". By default this is kept as "0" in the GVF-Convex Calculation Options. You can increase this value to get the correct results. I used a value of 0.5 and the results were fairly accurate. Here is a relevant article for this, which discusses the problem and provides a solution to remedy this; Flow in conduit doesn't follow load pattern specified I cross checked the data with some manual calculation as seen below; Hope this helps.
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Forum Post: In Query builder how to use "Not like" command for text.
In Query builder how to use "Not like" command for text. Example for nodes flex table i have named as "E01-01" for Tank and "E01-J01" for junctions, in this case i need to use not like command for junctions.
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Forum Post: RE: StormCAD File for review
Hello Hari, Glad that your understanding is clear on the spread calculations in StormCAD. When reviewing a model it always a good practice to do a model "Validation" before computing your model, which gives out different user notifications warning you of improper connections, missing data, constraint violation etc. After the notifications are resolved, you are good to go. I reviewed your model "356 Stage1_Seed" and following are my observations; 1. I validated your model and the major notifications were; a. "There is no gutter leaving this 'On Grade' catch basin. Bypassed flow is directed to the subnetwork outfall." This notification was for inlets (catch-basins) IN3-1, IN4-1, IN1-4 and IN7-4. The notification means that there is no gutter leaving this inlet and if there is any bypass from the gutter it will be diverted to the outfall. Basically if your inlet type has a particular capture efficiency only that much flow will be captured and the rest will be diverted to the sub-network outfall. Here is a relevant article for that; User notification: "There is no gutter leaving this 'On Grade' catchbasin. Bypassed flow is directed to the subnetwork outfall." b. "There are 7 isolated nodes. Be sure all nodes are connected to a pond or outfall by a link (Boundary Element boundary condition type is not counted). Isolated nodes are: CB-3, CB-4, CB-6, CB-8" This notification asks the user to check the model for nodes which aren't directly connected to an outfall. This is because 7 of the nodes such as CB-11, CB-10, CB-9, CB-8, CB-6, CB-4 and CB-3 are only connected via a gutter to the downstream catch-basin. This notification occurs because the inlets are not connected via a "conduit". StormCAD will recognize conduit connection till the sub-network outfall. Since these catch-basins are only connected via gutters it is treating them as isolated. However, if you want only the bypassed flow from these catch-basins then it will be accommodated downstream. I noticed that you have specified capture efficiency as "1%" for CB-4 which means only 1% of flow will be captured and rest is diverted to the gutter. This 1% flow will be lost because there is no conduit connected from CB-4 when you compute. c. "Conduit does not meet maximum cover constraint." This notification means that you need to check your cover constraints and tweak them so that conduit cover calculated by the software falls within the range specified. As far as modeling of the elements is concerned, they look alright to me. All these notifications are also "Warning" type, hence there are only minor adjustments to be made. For a major error you will get a "Red" user notification indicating something wrong in the model which will hinder the analysis. Here are the different user-notification types for reference; Different color's meanings in User notifications & Calculation Summary Hope this helps.
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Forum Post: RE: In Query builder how to use "Not like" command for text.
Hello Raj, What query do you wish to run? Do you wish to filter / sort elements using the "not like" function? The "not like" function is denoted as "<>". When using this the program will filter out those elements which qualify and show you the remaining elements. E.g. If I have junctions J-1, J-2, J-3 and J-4 and I prepare a query "Label <> J-3". The program will filter out "J-3" and show me the remaining elements (J-1, J-2 and J-4) in the junction flex table. Here is a relevant article for this; How to filter a FlexTable by Query, Selection Set, or by selecting from drawing pane for reporting, global edits, etc. Hope this helps.
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Forum Post: RE: Error - "updating conduit descriptions"
Hello Joao, Thanks for uploading the model files, I could reproduce the issue mentioned by you about "updating descriptions" loop. I imported only database file into a new model and saved the file with a new name, copied element symbology from the original model. After this I ran multiple scenarios as mentioned by you, that issue occurs after multiple scenarios are run>saved model multiple times. Then I couldn't reproduce the issue, can you please try this and confirm after working on the model for a while? If this works then there might be issue with .wtg file of your model.
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Forum Post: how to define parallel pumps, similar head and similar rate of flow
Greeting all, i wondering if we have an hydraulic model which consist of 4 pumps operates simultaneously how would be able to define them suppose my model has 4 pumps each has 10 bar and 112 cubic meter per hour just like the photo, how would be able to define them thanks to all for supporting and helping
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Forum Post: RE: how to define parallel pumps, similar head and similar rate of flow
You define the pump characteristics in Components > Pump Definitions. Then for each pump, you select the appropriate definition in the Pump Definition field in the property grid.
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Forum Post: RE: In Query builder how to use "Not like" command for text.
Hi Raj, You would do something similar to this: Label not like '%p-1%' Regards, Rob,
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Wiki Page: What is an i-model and why does it show as a prerequisite? How do I publish an i-model?
Applies To Product(s): WaterGEMS, SewerGEMS, CivilStorm, StormCAD, SewerCAD, HAMMER, WaterCAD Version(s): CONNECT Edition, V8i Select Sereis 3+ Area: Output and Reporting Original Author: Terry Foster, Bentley Technical Support Group Overview This article describes the process by which a user can export their model to an i-model file. i-model publishing is included starting with the V8i SELECTseries 3 release of the hydraulics and hydrology products. When downloading the products, the i-model publishing engine shows as a dependency on the download page. What is an i-model? An i-model is an immutable container for rich multi-discipline information published form known sources in a known state at a known time. It is portable. It is read-only. It can be viewed by users that do not have the hydraulics and hydrology product the i-model was created from. The topology, as well as the attributes and results (for a particular time-step) can be viewed in MicroStation, ProjectWise, Navigator and Bentley View. Since Bentley View is free, i-models provide a way for anyone to easily view data and results for a WaterCAD/GEMS or HAMMER model file. Here is a link to Bentley View http://www.bentley.com/en-US/Products/Bentley+View/ . The file name for an i-model is filename.i.dgn If you wanted to view the model on Bentley Map Mobile, you can generate a Map Mobile i-model as well. The file name for this will be filename.imodel. i-model exports could potentially used for BIM workflows Downloading The i-model publishing engine must be downloaded and installed separately and can be found in the Fulfillment Center under the product's download area. See: Downloading Haestad / Hydraulics and Hydrology Software Note: only designated as "32-bit", but they will work with both versions (for i-model export). Why does i-model show as a prerequisite for hydraulics and hydrology products? Although it is not required to be installed, the i-model publishing engine shows as a prerequisite on the download page for hydraulics and hydrology products so as to be visible to those who may want to use it. It is only necessary if you intend to publish i-models. If you have no need to publish i-models you do not need to download and install this optional component. It will not have any effect on the product functionality aside from i-model export. How to Publish an i-model First, you will want to select the desired scenario and time-step. Once you have, go to File > Export > Publish i-model. This will generate a file that can be viewed on Bentley View or Bentley Map. If you want to create a file you can use with Bentley Map Mobile (which can be used on mobile devices), you would go to File > Export > Publish Bentley Map Mobile i-model. With either option, a dialog similar to the one below will open, with the defaults set so that all elements and properties are included in the i-model. The top left pane is a summary of the element types to be included in the i-model. If a box by the element type is checked, that element type is included. The Table/Properties column reflects the selections on the right side of the dialog in terms of which elements and properties are to be included. The bottom left portion of the dialog box is used to identify which elements are to be included in the i-model. If the "Publish a subset of elements based on the Flex Table filters" box is checked, only those elements that are in the filtered flex table will be included in the i-model. If the "Exclude topologically inactive elements" box is checked, only active elements (Is Active? = True) are included in the i-model. The user will usually not need to include all element properties in the i-model. The right side of the dialog is to identify which properties of the elements are going to be included in the i-model. The default is "All Properties". If the user wants to only include a subset of properties, the user should create a flex table with only those properties and select that flex table from the drop down list.
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Wiki Page: How do Taps and Laterals work in the storm and sewer products?
Product(s): StormCAD, SewerCAD, SewerGEMS, CivilStorm Version(s): 08.11.05.xx and higher Area: Modeling Problem How do Taps and Laterals work in the storm and sewer products? Solution A Tap is a type of node that connects the lateral to the conduit or channel. It enables the user to add inflows along a conduit or channel without the need to break the link element into multiple elements. There could be a number of lateral connections to a single trunk conduit or channel. The flow comes from the upstream catch basin, down the lateral, and to the tap. The flow from the tap is then contributed to the conduit or channel it's connected to. The flows from each lateral a re assumed to enter the network at the upstream end of the connected conduit in the GVF-Rational and GVF-Convex solvers, and at the Tap node in the Explicit (SWMM) solver. They are not supported in the Implicit (DW) solver. Although it can be used with manholes in a sewer model, the primary use of the Tap and Lateral element are road and site design engineers and OpenRoads users (see above) because this level of detail is more significant when working with a physical model. For example, an OpenRoads user (starting with the SS4 release as mentioned above) might need to use the Subsurface Utilities Engineering (SUE) clash detection tool, in which case the exact location of the lateral and tap is important. Since this is the primary intent of the tap and lateral feature, it is not recommended to use this in very large models, where Modelbuilder would be required to import a large number of taps and laterals. Starting with the CONNECT Edition, a new Property Connection element was introduced, where a single node representing a property can be associated directly with a node on the trunk main. Note: Taps and laterals are not supported in the Implicit dynamic solver. With the Explicit (SWMM) solver, laterals are treated as "dummy" conduits. The SewerCAD (GVF-Convex) solver does not do any hydraulic calculations in the lateral pipe. Note on licensing : In version 10.00.00.40, lateral link elements count toward your total number of pipes/links, which is checked against the number of available pipes in your license . In future versions above 10.00.00.40, laterals should NOT count toward your license limit. www.youtube.com/watch See Also Using LoadBuilder to assign Property Connections to the nearest element while creating taps and/or laterals How to toggle tap node dashed line display Modeling Storm/Sewer Property Connections
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Wiki Page: Modeling Property Connections in the Storm-Sewer products
Product(s): SewerGEMS, CivilStorm, SewerCAD, StormCAD Version(s): 10.00.00.40 and later Area: Layout and Data Input Introduction The Property connection element was introduced in the CONNECT Edition (10.00.00.40) and is used to load sewer models based on data at the level of individual properties. This is useful when you have loading data provided for all customers/properties based on metering, number of occupants/fixture units, or simply flow per property, and you would like to see it in your hydraulic model (rather than lumping all loads into manholes). This can also enable a closer 1:1 match between the hydraulic model and a GIS. Layout and Connections A Property Connection can be placed manually in a model by selecting Layout, then either Property Connection or Lateral. Property connections can be connected to a downstream gravity network using lateral links. Laterals connect to tap elements and most gravity nodes such as manholes, transitions, and catch basins. Taps can connect to conduits, channels and manholes. Property connections cannot be connected to pressure elements. Laterals can only make a single connection to a tap or other hydraulic element. Taps cannot connect to a conduit that is designated as a diversion link . There cannot be any hydraulic elements on the upstream side of a Property Connection. However, a Property Connection can be the Outflow Element for a catchment. The flows from each lateral are assumed to enter the network at the upstream end of the connected conduit in the GVF-Rational and GVF-Convex solvers, and at the Tap node in the Explicit (SWMM) solver. They are not supported in the Implicit (DW) solver. Create Property Connection elements and assign loads Option 1: A Property Connection can be placed manually in a model by selecting Layout, then either Property Connection or Lateral. The load data for each Property Connection can then be entered in the properties grid or FlexTable. Option 2: Create Property Connection elements via ModelBuilder, with the loading data attached to the data source. Then use LoadBuilder to assign the property connection flows to the nearest element. Assigning Property Connections to the Nearest Link LoadBuilder can be used to assign isolated Property Connection elements to the nearest element by creating a tap and lateral connection. Isolated Property Connections are those elements that are not connected to any lateral element. Laterals are automatically placed between the source element and the hydraulic network when using LoadBuilder and selecting Property Connection Load Data as the Available LoadBuilder Method. When this data source is used, it is assumed that that load data is already available in the Property Connection. For steps detailing this process, see the following article: Using LoadBuilder to assign Property Connections to the nearest element while creating taps and/or laterals Licensing In version 10.00.00.40, lateral link elements count toward your total number of pipes/links, which is checked against the number of available pipes in your license . In future versions above 10.00.00.40, laterals should NOT count toward your license limit. Calculations Elevation of the ground and the lateral invert can be placed in the attributes of the Property Connection element but are not used in the hydraulic calculations. It is not possible to construct a profile through a lateral link and up to a Property Connection. Property connections are used for loading in the Explicit and GVF Convex solvers, but not the Implicit solver. Property connections support hydrograph inflows, pattern loads, or directly accept runoff as the outlet of a catchment. For the GVF Rational Solver, flow through a Property Connection must come from a Catchment. (Property Connection designated as the Outflow Element.) Query The query "Property Connections not connected to Nearest Link" is included in the Network Review Predefined Queries (version 10.00.00.40 and later). This is useful to locate property connections whose loads did not get assigned or are assigned to a pipe that is not closest. To locate completely disconnected property connections, use the query "Orphaned nodes". www.youtube.com/watch See Also Using LoadBuilder to assign Property Connections to the nearest element and create taps and laterals Introducing individual Property Connections to your model [VID] How to toggle tap node dashed line display Help Article "Property Connections"
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Wiki Page: Using LoadBuilder to assign Property Connections to the nearest element while creating taps and/or laterals
Product(s): SewerGEMS, CivilStorm, SewerCAD Version(s): 10.00.00.40 and later Area: Modeling Introduction LoadBuilder can be used to assign isolated Property Connection elements to the nearest element by creating a tap and lateral connection. Isolated Property Connections are those that are not connected to any lateral element (they are "orphaned"). Laterals are automatically placed between the source element and the hydraulic network when using LoadBuilder and selecting Property Connection Load Data as the Available LoadBuilder Method. When this method is used, it is assumed that that load data is already available in the Property Connection. Note: once property connections are attached to conduits via laterals and taps, t he flows from each lateral a re assumed to enter the network at the upstream end of the connected conduit in the GVF-Rational and GVF-Convex solvers, and at the Tap node in the Explicit (SWMM) solver. They are not supported in the Implicit (DW) solver. Steps 1. Run the LoadBuilder tool from the Tools tab. 2. Click the New icon 3. Select Property Connection Load Data as the Available LoadBuilder Method and click Next. 4. Optional: Create a selection set containing the links elements (ie. Channel or conduit) that can have taps associated with them. 5. Optional: Create a selection set containing the Property Connection elements that are to be assigned with Loadbuilder. 6. Enter all fields on the Property Connection Nearest Link page and then click Next. Link Layer In standalone, when the […] button for Link Layer is clicked, the following dialog displays to select all elements of a particular type or a selection set containing conduits and/or channels. In ArcMap, when the […] button for Link Layer is selected, the following dialog displays and allows you to select the available Feature Class layer. Link ID Field Specify the source database field that contains the identifying label data. In standalone, MicroStation and AutoCAD platforms, this field is always “ElementID”. In ArcMap, multiple choice are given based on the columns available in the selected FeatureClass Layer. Property Connection Layer In standalone, when the […] button for Property Connection Layer is clicked, the following dialog displays to select all Property Connection Elements or available selection sets of Property Connection type. In ArcMap, when the […] button for Property Connection Layer is selected, the following dialog displays and allows you to select the available Feature Class layer. Property Connection ID Field Specify the source database field that contains the identifying label data. In standalone, MicroStation and AutoCAD platforms, this field is always “ElementID”. In ArcMap, multiple choice are given based on the columns available in the selected FeatureClass Layer. If Next is pressed without entering one of these fields, then one of the following errors will display. Link layer not provided Link ID Field not provided Property Connection Layer not provided Property Connection ID Field not provided If the selected Property Connection Layer doesn't contain any isolated Property Connection elements, then the following message will display. "There are no results available for the given input parameters. Please verify your data and try again." 7. The Results Preview page contains a list of the nearest elements for each Property Connection. A lateral will be created to connect elements listed in the Property Connection column with the corresponding assigned elements in the Nearest Element column. Based on the geometric location of a Property Connection, the Nearest Element that it is assigned to could be a link (conduit/channel) or node (catch basin, manhole, transition, cross section or headwall) element type. 8. On the last page of the LoadBuilder wizard, enter a name for the LoadBuilder run and click Finish. 9. Review and close the summary dialog. Close the Loadbuilder Manager. 10. Model Synchronization After a successful Property Connection nearest link run, one or more lateral and/or tap elements will be created. Therefore, a drawing needs to be synchronized to display them. Once the Summary Report and Load Manager are closed, the following dialog will display asking if you want to synchronize the drawing: If you click Yes, a drawing will be synchronized and new elements will be display. Otherwise, the drawing will remain out-of-sync. Active Topology An element's active topology state is considered when using LoadBuilder with Property Connection load data. LoadBuilder will not assign a property connection to an inactive element. A Property Connection will only be assigned to a link if both of its nodes are active. Properties of newly created Lateral and Tap elements Newly created Lateral and tap elements will have a default values from the active lateral and tap prototypes respectively. If a tap element is created, it will have a reference link (dashed line) connecting it to the nearest pipe. The dashed line can be turned off by setting the tap property "Show Associated Link Decorations" to False in Element Symbology. Property Connection Assignment The nearest element the Property Connection is assigned to will vary for different use cases. When is a tap node created on the nearest link element? If the Property Connection element is perpendicular to the nearest link, and the perpendicular intersection is not within 10ft of a valid node. If the Property Connection makes a perpendicular intersection with the nearest link within 10 feet of, or beyond the node, but the nearest node is invalid (eg. outfall). When is the nearest node used? If the Property Connection element is not perpendicular to the nearest link and the nearest node is valid (eg. manhole). If the Property Connection element is perpendicular to the nearest link, and the perpendicular intersection is not within 10ft of a valid node. A Property Connection element will be assigned to the nearest node if one of the following are true: The Property Connection element is close to (within 10ft) the valid node element (ie. manhole, catch basin, transition, cross section, headwall). This 10ft is a fixed distance and can’t be modified. If the Property Connection element is closer to an applicable node (ie. Manhole, catch basin, transition) then the lateral will be created from the property connection element to the node. See Also Wiki: Property Connections Wiki: How to toggle tap node dashed line display WIki: How do Taps and Laterals work in the storm and sewer products? Blog [VID]: Introducing individual Property Connections to your model
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Forum Post: RE: Property connection base flow not accounted for in some conduits
Joao, when I compute the scenario in the model you sent, I am not sure that I am seeing the flow being constant as you describe. Here is a screenshot of the conduit in question and one of the connecting laterals as an example. It appears to be following the general pattern of the "Consumo" pattern you used for the property connection loads, and the flow seems to add up. Are you seeing something different? Note that this was tested in version 10.01.01.04, which you appear to also be using. I also tested it in 10.01.00.70 and saw the same results. I saw you uploaded both a "Diamantino_4" and "Diamantino_5" model, and I see the same result in both.
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Forum Post: RE: pump optimization
Tewelde, generally speaking the smaller the timestep, the more accurate the results. Are you saying that you are seeing this difference in cost when changing the timestep from 1 hr to something else? In some situations the timestep may not have a large impact, but in cases where a pump cycles quickly, a small timestep may be necessary to capture all of the cycles. I would take a look at the pump flow over time for some of your pumps, when using the 1 hr timestep, then change it to something smaller if you see the cycles happening quickly, and see how that impacts the pump results. A change in the pump results would impact the energy cost results. WaterGEMS and WaterCAD will insert intermediate timesteps in cases where a pump is triggered to turn on or off between the major timesteps, but that can only be done at 1/10 of the hydraulic timestep. So, you can still see a change in results (and thus energy cost) between timesteps. If this does not help, please provide a copy of the model along with the steps to observe this change in cost that you refer to. Sharing Hydraulic Model Files on the Haestad Forum
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Forum Post: RE: Not seeing Bing Map feature
Michael, here is a related article from our Wiki, which explains the version that the Bing Maps feature was introduced in, and how to use it: How to add background aerial and road map images to your model Here is the release announcement for the CONNECT Edition version that added Bing Maps: What's New with WaterGEMS and WaterCAD CONNECT Edition Update 1 Here is an article with information on how to download/upgrade: Downloading Haestad / Hydraulics and Hydrology Software
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Forum Post: RE: Bing Map Background Not Working.
Please note that a subsequent reply to this thread has been split off into a new discussion here: Not seeing Bing Map feature
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Forum Post: RE: Which pipes do watergems consider as duplicate?
Junaid, as you can see, the answer to your question depends on the context of what you mean by "duplicate". If you are referring to the "duplicate Pipes" query, then as my colleague Rob mentioned, this refers to pipes that have the same start and stop node. Such pipes will often overlap and the modeler may not realize that there are two pipes instead of one, hence the query will help clean up instances of this. You can find more information about this query and others in the article that my colleague Yashodhan posted: Using Network Navigator . If however you are referring to "duplicate" pipe issues for example when importing a submodel, then this refers to elements with the same label. If for example you have two models of separate systems and both of them happen to have a pipe labeled "P-1", then if you try to import one model into the other using the Submodel feature, you will run into problems with connectivity. This is explained in more detail here: Pipes connecting to the wrong element after submodel import
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Forum Post: RE: FCV, pressure below the lowest physically possible pressure in system
To elaborate a bit more on the calculation of the FCV initial relative closure of 70%: In summary, the calculated "relative closure" of 70% is determined based on the headloss during the initial conditions relative to the fully open conditions ("minor loss coefficient") 1) The initial conditions solver determines the headloss (through the FCV) necessary to cause the energy balance to settle on a reduced flow equal to the desired flow setting. In this case, in order to achieve a flow of 1500 m^3/hr, the headloss needs to be 63.91 m, as seen in the Results section of the FCV properties. This is explained more here: Why do I see such a large headloss through my FCV, PSV or PRV? To elaborate even more - the difference in hydraulic grade between the upstream and downstream reservoir is 104 m. With a flow of 1500 m^3/ hr in the pipes between them, those pipes (at their given diameter and roughness) only induce a headloss of about 40 m. So, in order to meet that desired flow while also having those two reservoir HGLs be true, there needs to be an additional 64 m of headloss, which is what you see in the FCV. Essentially this is how far closed the FCV would need to be in order to achieve this flow. 2) The initial conditions solver determines the Discharge Coefficient (Cv) corresponding to this headloss, which you can see in the Results section of the FCV properties. 3) The "minor loss coefficient" of 0.46 that you entered represents the fully open conditions of this valve - this is converted into a discharge coefficient and compared to the actual discharge coefficient from the throttling of this valve to achieve your desired flow (step 2), to determine the "relative discharge coefficient" (the percentage of the fully open discharge coefficient) 4) The relative discharge coefficient is looked up on a rating table of relative closure vs. relative discharge coefficient, based on the Valve Type that you have selected. In this case you have Butterfly selected. There is a built-in curve for the butterfly (and other default) types, which you can read about here: Modeling Reference - Valves - this determines the "Relative closure" for the particular Relative discharge coefficient, which is then reported as the calculated relative closure seen in the results section of the FCV properties. If you would like to use a transient pattern to close this valve during the transient simulation, you would then set the initial relative closure in the operating rule to match this 70% value.
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