Product(s): SewerCAD Version(s): 08.11.02.XX Area: Installation Problem When opening SewerCAD for AutoCAD 2010 or 2011, all of the docking managers (such as the properties grid) are blank and the following error may occur: "_SWRCCompute Unknown command "SWRCCOMPUTE". AutoCAD integration not working correctly after installing SewerCAD SELECTseries 2 Problem ID#: 46962 Solution This may occur if you have SewerGEMS 08.11.01.21 installed, then SewerCAD SELECTseries 2 (08.11.02.XX) is installed, to resolve this issue, either: 1) Uninstall SewerGEMS, Uninstall SewerCAD, then reinstall SewerCAD 2) Save the attached SWRCreregister.bat to the SewerCAD installation folder (C:\Program Files\Bentley\SewerCAD8\ by default) and run it. Note that if you're using Windows Vista or Windows 7, you'll need to open the file in a text editor and modify the file paths to point to the correct locations. SWRCreregister.bat See Also Blank managers in AutoCAD mode for SewerGEMS and WaterGEMS Properties, user notifications, or other tool managers not showing up in Integrated version of AutoCAD
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Wiki Page: When opening SewerCAD for AutoCAD 2010 or 2011, all of the docking managers are blank
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Wiki Page: Change in results before turbine load rejection occurs
Product(s): Hammer Version(s): 08.11.XX.XX, 10.XX.XX.XX Area: Modeling Problem When modeling a turbine under the load rejection operating case, why do I see a change in the transient results before the operating rule is set to close the wicket gate? Solution For the Load Rejection operating case, an electrical torque vs. time curve is supplied in the turbine properties. If the hydraulic torque from the initial conditions multiplied by the turbine efficiency does not equal the electrical torque at time zero from this electrical torque curve, the turbine will either speed up or down, causing results to not be steady, even before the wicket gate moves. To fix this and stop the initial surge at the beginning of the transient simulation, you will need to adjust the electrical torque value at the beginning of the electrical torque curve, so that it is equal to the hydraulic torque multiplied by the efficiency. For more on how to do this, see the link below. See Also Calculating initial electrical torque for use with the Load Rejection turbine Operating Case Using Turbines in Bentley HAMMER Turbine Efficiency
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Forum Post: RE: Geometry in Flex tables / Query Builder / User Data Extension.
Hey Videet, It seems the geometrical collection for pipes are not available directly from flextables. You can avail the geometrical co-ordinates of the start and stop nodes for all your pipes by using the flextable for junctions. Do you need to know the exact cooridnates of all the bends you are utilising in the pipeline as well? In that case I guess you will have to model the bends as junctions and assign the relevant minor loss to the adjacent pipes. Then you can create a selection set and avail the geometrical co-ordinates of the junctions from flextables.
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Forum Post: Profile Creation in SewerGEMS
While viewing longitudinal engineering profile in sewergems, is it possible to add a new profile line other than ground level profile and invert level profile?
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Forum Post: RE: Geometry in Flex tables / Query Builder / User Data Extension.
Hello Videet, I see that you had posted similar query for finding out number of bends in a pipe based on geometry count 6 months back, in that thread workaround of using GIS program for this purpose was suggested by our colleague Mal Sharkey. Total number of bends in WaterGEMS / WaterCAD Workaround: As you have seen, we don't have a quick way to do this in WaterGEMS. You can do it using GIS software though. So, 1. Open a Pipe FlexTable in WaterGEMS 2. Click Export to File and export the pipe data to a Shapefile 3. Open that shapefile in your GIS software, add a new field then count up the vertices. See here for instructions for ArcGIS: https://support.esri.com/en/technical-article/000011230 or here for QGIS: http://www.qgistutorials.com/en/docs/counting_vertices.html 4. Optionally import that back into WaterGEMS as a User Data Extension field using the ModelBuilder tool. NOTE : That workaround you can follow at the moment, however I also do understand if there is column added of geometry count in e.g. flex table that would be easy for you to work. So, I am logging an enhancement for this to consider this in the future release of the product, reference number is #933973.
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Wiki Page: What is the FlexTable field "Geometry Modified Counter" for?
Product(s): WaterGEMS, WaterCAD, SewerCAD, SewerGEMS, StormCAD, CivilStorm, Hammer, PondPack Version(s): 08.11.XX.XX, 10.XX.XX.XX Area: General Problem There is a field that can be added to the FlexTable called "Geometry modified counter". What does this field relate to? Problem ID#: 90211 Solution The geometry modified counter is used internally by the program to speed up the execution of drawing synchronization. The geometry of the drawing file (stored in the .dwh in the standalone version of the program) is recreated from the geometries stored in the database file. The operation is expensive performance-wise, i.e., takes a long time to compute. Thus, we maintain a counter on each geometry when it is modified, matching a counter we keep on the database file. When the drawing file goes out-of-sync, we only synchronize those geometries where the counters between the drawing file and the database are different. This helps significantly on large models if what went out-of-sync were just a few= geometry changes and keeps the computation time down.
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Forum Post: RE: Profile Creation in SewerGEMS
Hello Ankit, Could you please explain what kind of data you are looking for to be added in the profile apart from ground and invert level? You can also view hydraulic grade line and energy grade line in profile in addition to ground and invert level. If you are using engineering profile, you can annotate it with different result fields like slope, flow etc. How can I see the existing ground profile in the Engineering Profile View?
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Forum Post: Civil Storm connect Edition outfall results
Hi, I am using Civil Storm Connect Edition. Could not understand Why outfall results doesn't show System Catchment Area and System Intensity in SWMM explicit solver? Please explain
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Forum Post: RE: Profile Creation in SewerGEMS
That is OK like, I am aware that we can see ground profile, pipe crown, pipe invert, EGL & HGL. Suppose I am doing storm drain design located in the center of the Service Road and Main Carriageway for a particular Highway. Now, along with the drain inverts, I want to see the Service Road Profile and Main Carriageway Profile. Is it possible to view all 3 of them in Engineering Profile View in SewerGEMS? BWT thank you for your prompt reply. . .!
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Forum Post: RE: Geometry in Flex tables / Query Builder / User Data Extension.
Hey Videet and Sushma, If you dont mind, I would like to point out that as per the picture that has been attached, the pipe mentioned is a DI pipe. While laying DI pipes with socket and spigot ends, the pipe can be turned to a deflection angle of at max 5 degree without utilising bends. If you look at the picture that Videet has attached, it doesnt seem that all the points in the pipe that is being counted in the 'geometry collection' field by the software may not actually be a bend. By looking at the pipe selected it seems the pipe will have a maximum of 6 bends (from the plan view) rather than 10. Hence is using the 'gemoetry collection field' for deducing the number of bends the ideal way to count the number of bends?
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Wiki Page: What is the conduit System Intensity?
Product(s): StormCAD, CivilStorm, SewerGEMS Version(s): V8i, CONNECT Edition Area: Modeling Problem In the conduit properties, what is System Intensity and why is it different for different conduits? Problem ID#: 65053 Solution System Intensity in the conduits is the calculated rainfall intensity at that conduit based on contributing rational flows and the IDF curve. The reason that it can be different for different conduits is that the intensity is related to the travel time in the conduit. For longer travel times, the intensity will be lower. More information on this can be found in the Theory section of StormCAD Help and in the articles below. See Also How is flow balanced at junctions with the GVF Rational Solver (StormCAD)? Flow Attenuation - Why does flow or velocity sometimes decrease when moving downstream? Why is the system time at one of my nodes much larger than the upstream nodes Tc or system time?
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Wiki Page: Why is the system time at one of my nodes much larger than the upstream nodes Tc or system time?
Product(s): StormCAD, SewerGEMS, CivilStorm Version(s): 10.00.xx.xx, 08.11.XX.XX Area: Calculations Problem Why is the system time at one of my nodes (catch basin, transition) much larger than the upstream nodes time of concentrations or system time? or How is flow calculated for the GVF-Rational Solver (StormCAD) How is flow balanced at junctions with the GVF Rational Solver (StormCAD)? Problem ID#: 64653 Solution Most likely the reason why this is happening is the following: The time of concentration is added to the pipe travel time a.k.a (Time (Pipe Flow)) under the Results (Hydraulic Summary) for pipes, which determines the system time. As stated in the Help documentation, when combining rational loads, the controlling time (aka system time) is the greatest of the individual loads' system times. Therefore the system time at a given transition X with one upstream node and a pipe connecting to it would be computed as follows: Catch Basin Y has a time of concentration of 5.00 minutes + the Time (Pipe Flow) for conduit Z which would be 71.193 min = a system travel time of at transition X of 76.193 min. Similar to a time of concentration, a system time (or controlling time) is the amount of time it takes for all contributing parts of the storm sewer to reach a given location. This includes a catchment's time of concentration, and pipe travel times. When combining rational loads, the controlling time is the greatest of the individual loads' system times. This system time is used as the duration of the storm when determining peak intensity, and therefore peak flow. To avoid unreasonably low storm durations and unreasonably high rainfall intensities, many regulatory agencies impose minimum storm durations, typically 5 or 10 minutes. StormCAD allows you to specify a minimum storm duration and uses this as the controlling time when the computed time is too low. In these cases, StormCAD carries the computed system time throughout the system, but continues to calculate intensity based on the minimum allowed time (until the system time rises above the minimum). For example, consider a catchment at I-1 with a time of concentration of 4 minutes, and a minimum allowable duration of 5 minutes: I-1 Catchment time of concentration: 4.0 minutes StormCAD computes flow based on: 5.0 minutes P-1 Pipe travel time: 0.5 minutes J-1 System time (4.0 + 0.5): 4.5 minutes StormCAD computes flow based on: 5.0 minutes P-2 Pipe travel time: 1.0 minutes O-1 System time (4.5 + 1.0): 5.5 minutes StormCAD computes flow based on: 5.5 minutes This 5.5 minutes is used as the duration in the intensity vs. duration equation used to calculate in determining the flow using: Q = i (CA) See Also How is flow balanced at junctions with the GVF Rational Solver (StormCAD)?
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Forum Post: RE: Civil Storm connect Edition outfall results
Hello Ajaykumar, The fields of "System CA" and "System Intensity" are properties of the GVF-Rational Solver. System Intensity and CA are fields which are properties which are computed in storm flow analysis using the Rational Method. Here is a relevant article which can help you in understanding the different solvers and how to use them; Differences between solvers: GVF-Convex vs. GVF-Rational vs. Implicit vs. Explicit (SWMM) Hope this helps.
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Forum Post: Calculation with tidal effect
Hello, I created a model and included tidal conditions. But from my point of view, the result is not plausible. The calculation starts with the maximum water level (elevation: 4,98 m) based on a Time-Elevation-Curve Boundary Conditon Typ: Tidal Tidal Gate: False The correct water-level is shown during the calculation time-steps (?). By using the Hydraulic Reviewer to check the Overflow Volume it gives me a total amount of about 10 m3. That is not plausible. Can someone assume where my mistake is?
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Forum Post: RE: Calculation with tidal effect
Hello Michael, Could you please also upload model files for our review? Sharing model files
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Forum Post: RE: Calculation with tidal effect
And here are the files communities.bentley.com/.../0407.Strang_5F00_1-ohne-lateral-20180817.stsw.zip communities.bentley.com/.../7128.Strang_5F00_1-ohne-lateral-20180817.zip communities.bentley.com/.../2018_2D00_08_2D00_19_5F00_Pegelrohdaten-St_5F00_Pauli.zip
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Forum Post: RE: Negative pressure at the Surge tower and Hydropneumatic Tank
Hello Doan, Thank you for uploading the model files, I believe for comparison purpose with placement of surge protection devices, you should create different scenarios. One for no protection and other with different surge protection devices. In case you haven’t gone through it, here is technote about scenarios and alternatives management for your reference. Scenarios and Alternatives As per user notification it can be seen that large hydropneumatic tank is required in your case as calculated gas volume exceeds capacity of the tank or you may need to review your data inputs of the tank. To understand and visualize the transient effects and how surge protection is working, you should setup multiple profiles in your case since there are multiple pumps in parallel and multiple surge protection devices. Here is information about using Transients results viewer in Hammer, for your reference. Transients results viewer If I am creating profile from R-TD3 to J-2 which will cover pump P-TD3, with shut down event of 5 seconds, I see that there is negative pressure at pump due to check valve slam. This situation is seen when hydropneumatic tank is there at downstream of the check valve. I am still looking at your model will add further comments.
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Forum Post: RE: Como se representa un pozo subterraneo como fuente de abastecimiento en watergem
ello, The link provided in the forum post above has some information on this. Based on your information, it appears that you have a well on the upstream side of the pump and a tank on the downstream side. Is this correct? If so, at a minimum, you would have a have a reservoir, pump, and tank. If there are other nodes, these will be included as well. As for developing the pump curve, you would need to develop this. You have flow data, but head data would be needed as well. This may take a some trial and error, but you can also use the System Head Curve function in WaterCAD to help develop this. Translated via Google Translate: Hola, El enlace proporcionado en la publicación del foro anterior contiene información sobre esto. Según su información, parece que tiene un pozo en el lado aguas arriba de la bomba y un tanque en el lado aguas abajo. ¿Es esto correcto? Si es así, como mínimo, tendría un depósito, una bomba y un tanque. Si hay otros nodos, estos se incluirán también. En cuanto al desarrollo de la curva de la bomba, necesitarías desarrollar esto. Tiene datos de flujo, pero también se necesitarían datos de cabecera. Esto puede llevar un poco de prueba y error, pero también puede usar la función de Curva de cabeza del sistema en WaterCAD para ayudar a desarrollar esto. Regards, Scott
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Forum Post: RE: Profile Creation in SewerGEMS
Hello Ankit, If you mean that you want to view all three profiles in the same screen, that is not possible at this time. There is an enhancement requested to add this to the custom report feature. The reference for that is 470401. If you want to see two branches in the same profile, that is not possible. You would need to create more than one profile for this. Regards, Scott
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Forum Post: RE: Profile Creation in SewerGEMS
Thanks for the information. . .By what means I would come to know about any update on the same?
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