OpenFlows | Hydraulics and Hydrology
OpenFlows | Hydraulics and Hydrology Wiki
Fire flow analysis at the time of minimum pressure (EPS Fire Flow Analysis Tool)
OpenFlows | Hydraulics and Hydrology Wiki
Bentley OpenFlows FLOOD
Calculations - Bentley WaterGEMS
Conversion - Bentley WaterGEMS
Error message opening program: “This implementation is not part of the Windows Platform FIPS validated cryptographic algorithms.”
Export - Bentley WaterGEMS
General - BENTLEY WATERGEMS
Help and Documentation - Bentley WaterGEMS
Image background file causes application to crash without an error message
Installation - Bentley WaterGEMS
Integration - Bentley WaterGEMS
Interchange - Bentley WaterGEMS
Layout and Data Input - Bentley WaterGEMS
Libraries/Catalogs - Bentley WaterGEMS
Licensing - Bentley WaterGEMS
Modeling - Bentley WaterGEMS
"Cannot solve network hydraulic equations" or other failure when using parallel variable speed pumps or VSPB
"Initialize Connection Error: Unsupported geometry type for sync-out operations found in table "xx" " when syncing out using modelbuilder
Account for elevation difference in scaled pipe lengths
Accounting for well drawdown
After exporting a model to DXF, text appears shifted in the resulting DXF file.
Annotation or Color Coding not updating when scrolling through Time Browser or Changing Scenarios
Application crash with non-English characters (Hebrew, Arabic, etc) in background image file or folder name
Applying PDD only to a portion of a node's demand, or to specific demand patterns
Are inactive elements included in criticality analysis?
Associating multiple customer meters to one element using the global edit function
Automatically assign the Zone property based on calculated pressure zones
Background layer linework does not appear correct, is badly aligned, or jumps around when zooming and/or panning.
Benefits of using variable speed pump batteries (VSPB) element and how it works
Calculating available flow at a hydrant
Calculating headloss through a hydrant lateral
Calculating Net Positive Suction Head (NPSH)
Calibrating a model based on hydrant flow tests
Can a node be a constituent source?
Can I use Darwin Designer for the EPS analysis?
Can multiple background layers be imported at the same time?
Can WaterCAD or WaterGEMS perform a transient analysis?
Can you have reverse flow through the inflow pipe on a top-fill tank?
Changing drawing style for better viewing of element symbols and annotations
Changing symbol size, text height, or line width for elements in a model
Changing the order of Flushing Events or Flushing Areas
Citect is not available when running as 64-bit
Compacting data causes element display issues
Computing Darwin Calibrator run returns the user notification "Must have at least one adjustment group…"
Constant Power pump definitions with Variable speed pumps
Constituent concentration sensitivity to pipe roughness
Contours considering elements not included in the contour selection set
Controls disappear after being input
Controls for alternating or cycling between multiple pumps
Creating a new model inside the ArcMap integrated platform
Creating Custom Reports
Critical Valves Analysis
Customer Meter Elements and the External Customer Meter Data Manager
Darwin Calibrator error "An error occurred when trying to calculate or validate the model..."
Darwin Calibrator error: "Tank level or hydraulic grade must fall within operating range"
Darwin Calibrator Performance Improvement Tips for Large Models
Darwin Designer Error "Tank elevations are invalid"
Darwin Designer manual design run solution diameters don't match the manual selection from the Design Groups tab
Deleted elements still show in FlexTable and/or drawing pane
Demand inversing in SCADAConnect Simulator
Determining which pipe/node contributes to outage or system demand outfall in criticality analysis
Difference between Initial and base water quality constituent concentration types
Dimensionless vs. Unitized Benefit Type in Darwin Designer
Does the friction method affect local minor loss in pipes?
Enter an EPS snapshot time from start of simulation instead of time of day
EPANET time-based controls are ignored when importing an INP file into WaterGEMS or WaterCAD
Error computing Flushing analysis: "Object reference not set to an instance of an object."
Error computing in SCADAConnect Simulator: Object reference not set to an instance of an object
Error connecting to a database source in SCADAConnect Simulator, "WaterGEMS Problem" - "The data source is specified but is not available"
Error filtering on Control Set: Object reference not set to an instance of an object
Error importing old model file: "Object reference not set to an instance of an object"
Error message generated when loading background file
Error message generating report: Could not find file "C:\Program Files (x86)\Bentley\WaterCAD\x64\QuadrantCurvesPredefined.txt"
Error message when trying to select more than one element
Error opening model: "1: no such column: IdahoPipeResults_PipeUnifiedLength"
Error opening model: Invalid character in the given encoding
Error running Darwin Designer - Value does not fall within the expected range
Error validating model or running a fire flow analysis: "Object reference not set to an instance of an object"
Error validating or computing model: "Pipe references deleted or inactive node"
Error when computing: Reference to a deleted or inactive downstream pipe
Error when opening model files: The specified path, file name, or both are too long.
Error when running a criticality analysis: Object reference not set to an instance of an object.
Error when running Flushing analysis: Reference to a deleted or inactive element of interest
Extending service area polygons to fill flow boundary layer
External Customer Meter table blank
Filtering a Flextable on Zone = "None"
Filtering controls on element not working with composite condition or action
Fire flow analysis at the time of minimum pressure (EPS Fire Flow Analysis Tool)
Fire flow analysis of multiple hydrants at the same time
Flushing error message - Flushing event order duplicates at least one other flushing event
Flushing in WaterGEMS/CAD V8i SELECTSeries 4 and 5
Flushing in WaterGEMS/WaterCAD CONNECT Edition or V8i SELECTSeries 6
General Pump Selection Process
Genetic algorithm parameters in Darwin Designer and Darwin Calibrator
Getting data and setting up for a Constituent Analysis in WaterGEMS and WaterCAD
Global edit "Specify Local Flows", "Emitter Coefficient", and "Flow" columns in flushing events
How are flow results reported for a pipe when using taps and laterals on a customer meter element?
How are pumps handled in each OpenFlows product?
How can I display Post Calculation Processor results for different scenarios?
How can I global edit the pipe material and have the roughness update?
How can I make a PRV, PSV or FCV active after closing it with controls?
How can I model a backflow preventer?
How can the quality of SCADA data be accounted for with SCADA signals in WaterGEMS?
How can we work on different phases without having a person edit a completed phase?
How can you change the background and foreground colors in the drawing pane?
How can you move an element when working with a model in the ArcGIS environment?
How do each of the LoadBuilder methods work?
How do i delete orphan nodes?
How do I model a PRV with a bypass?
How do you consider only a selection set of elements with LoadBuilder?
How do you find or change the friction method used in WaterGEMS and WaterCAD
How does the Pipe Renewal Planner tool decide which criticality segment a pipe belongs to?
How does the Pressure Reducing Valve (PRV) work in WaterGEMS and WaterCAD?
How does the Pressure Sustaining Valve (PSV) work in WaterGEMS and WaterCAD?
How does WaterGEMS and WaterCAD calculate the water age in a looped system?
How to "save as" or copy a project in the ArcMap environment
How to access legacy SCADAConnect tools
How to Batch Morph nodes from one type to another
How to convert TCV GPV or PBV to Isolation Valve using Skelebrator
How to define real-time custom queries in SCADAConnect
How to globally edit pattern format (continuous vs stepwise) in patterns manager?
How to import and export controls between models in WaterCAD and WaterGEMS
How to manually generate a system head curve
How to model a Combination Pressure Reducing Valve (PRV) and Pressure Sustaining Valve (PSV)
How to protect elements which are part of control sets from skelebrator process?
How to use the "Hydrant Status" property in WaterGEMS and WaterCAD
I have a section of pipe that is made of two materials. Can I just average the pipe roughness to come up with a composite roughness?
Importing controls for a valve with ModelBuilder returns validation message: "Element for the action is not recognized"
In what alternative can I change the starting status or Status(Initial) of a pipe?
Increasing headloss for all pipes or a set of pipes
Intermediate Time Steps
Internal Error in AutoCAD: eNotOpenForWrite
Is it possible to make a child scenario/alternative into a base scenario/alternative?
Is it possible to reproject a model to a different coordinate system?
Is it possible to see different results between WaterGEMS and WaterCAD?
Is there a way to model a rectangular pipe in WaterCAD or WaterGEMS?
Junction vs. Hydrant
Junctions are created on top of one another after using ModelBuilder with the GIS-ID property
Legend missing in exported DXF (Solution 500000069668)
LoadBuilder applying demands or loads to inactive elements
LoadBuilder demand allocation for customer meters with taps and laterals
LoadBuilder Error: A very high number of Usage Types were found
Memory error when using Terrain Extractor
Mixing Chlorine and Chloramines
ModelBuilder "Unable to assign attribute 'Status (Initial)' for element because enumeration value 'open' is not valid"
Modelbuilder "Unable to update Pipe <Label> geometry; one object in the data-source" message
Modeling a Connection to an Existing System
Modeling a Constant Headloss
Modeling a control condition based on the sum of flow in multiple pipes
Modeling a Tank with an Overflow
Modeling devices and components that are not explicitly available as an element
Modeling District Metered Areas (DMAs)
Modeling Fixed Inflow from a Marginal Source
Modeling intermittent water supply
Modeling minor losses at a valve or a tee
Modeling multiple VSPs where only one turns on at a time
Modeling other fluids or fluid temperatures
Modeling private customer pump stations
Modeling PRV / PSV controlled by pressure at remote location in the model
Modeling Surge Relief Valves (SRV) in WaterGEMS or WaterCAD
Modeling top fill tanks and throttling inlet valves
My results are different after having applied a demand to a model using Loadbuilder and then merging some of the junctions
New demands or customer meter assignments not showing up after running LoadBuilder
New Flextable features in 08.11.06.58+ (Water products) and 08.11.05.113+ (Storm/Sewer products)
No constituents available in the constituent alternative
Nodes missing from or listed multiple times in the Demand Control Center
Opening a Hydraulic Model in the ArcMap (ArcGIS) platform for the first time
Opening a new or existing model in an existing MXD
Pipe fill or drain time in WaterGEMS and WaterCAD
Pipes not merging when using Skelebrator with series pipe merging
Positive volume vs negative volume in Totalizing Flow Meter
Preparing for and Responding to Water System Emergencies
Program hangs when opening Prototypes dialog settings
Pump curve linear interpolation
Pump selection for a closed system
Pump Station and Pump Combination Curves
Query based selection sets not updating in various tools such as color coding and annotations
Rapid flow oscillation between hydraulically close tanks
Roughness value changing to the default value after splitting the pipe
Select end nodes of pipes in a selection set
Selecting multiple elements for a selection set
Shapefile attributes are not applied to the model's properties with ModelBuilder
Shapefile backgrounds not displaying correctly
Simulate bypass flow through a pump that is turned off
Simulating a Fire Response in SCADAConnect Simulator or WaterOPS
Skelebrator Skeletonizer branch collapsing only updates customer meter associated element fields for the active scenario
Start and stop nodes are not exported in "Sync Out" using ArcGIS Geodatabase features with ModelBuilder
System.ArgumentException: Font '<Font Name>' does not support style 'Regular'
Tips for improving performance of all-pipe models linked to a GIS
Tips for Water Loss Management and Leak Detection
Tracking cumulative length (stationing) for a branched water network
Troubleshooting and Understanding LoadBuilder
Troubleshooting Controls in WaterCAD and WaterGEMS
Troubleshooting negative pressures at pumps, junctions, & other node elements
Troubleshooting Pressure Dependent Demands with a network unbalanced user notification
Understanding System Head Curves in WaterGEMS, WaterCAD, and SewerCAD
Understanding the "Fire Flow (Needed)" and "Fire Flow (Upper Limit)" Fields for a Fire Flow Analysis
User Notification when computing model: "Variable Speed Pump Battery speed unable to be computed"
User notification: "One or more patterns has a time step that does not coincide with the calculation hydraulic time step."
User notification: Constant flow VSPs (or VSPBs) and fixed head VSPs (or VSPBs) are not both allowed in the same scenario
Using "Clock Time" and "Time From Start" Controls
Using LoadBuilder to assign Customer Meters to the nearest pipe using taps and laterals
Using Multi-Species Extension (MSX) for advanced water quality modeling
Using multiple peak demand charges
Using pump flow test data to create a pump curve
Using Pump Performance Studies to analyze pump performance and efficiency
Using SCADAConnect Simulator
Using Spot Elevations
Using the LIKE and IN Operators with queries to filter on text fields such as label
Using the Pressure Zone Manager
Using the zero diameter option in Darwin Designer
Using Water Quality Batch run for multi-point trace and multiple constituents
Valve Type field assumptions and use with a TCV
Viewing and global editing a list of Demands
Viewing hydraulic element properties in the ArcMap platform
VSP or VSPB not properly maintaining target hydraulic grade
Water Age analysis results look incorrect for hydropneumatic tank
Water Model Calibration Tips
What file types are supported for background layers in the standalone platform?
What happens when a tank becomes empty or full? (altitude valve)
What is the asterisk "*" column mean in relation to alternatives?
What is the difference between Darcy-Weisbach roughness coefficients e and f, and Bed Roughness Ks?
What is the process to use query-based selection sets in Pressure Dependent Demands?
What is the purpose of the "DMA Status" property in WaterGEMS and WaterCAD?
While moving parts of my network or vertexes of pipes, the vertexes/nodes suddenly jump far from the main drawing with the adjacent pipe stretching far out. (Solution 500000058975)
Why are more than the required isolation valves selected when you use the find tool in criticality to locate the correct valves to close?
Why can’t I specify both head and flow at a pump?
Why do I see such a large headloss through my FCV, PSV or PRV?
Why is there an energy cost associated with a tank?
Will Darwin Scheduler calculate the peak energy demand charge when the lowest cost energy option is selected for optimizing pumps?
Will SCADA Results Publishing work with only OPC sources?
[Achive] SCADAConnect Simulator in WaterCAD and WaterGEMS V8i SELECTseries 5
Modeling scenarios with different demand conditions
N/A - Bentley WaterGEMS
Other - Bentley WaterGEMS
Output and Reporting - Bentley WaterGEMS
Output/Results Presentation - Bentley WaterGEMS
SCADAConnect Simulator adding a "#" symbol to SQL query
Unexpected, automatic updating of model when working on the MicroStation integrated platform for OpenFlows Products
What does node elevation represent in WaterCAD, WaterGEMS and HAMMER?
What's New in WaterGEMS and WaterCAD CONNECT Edition Update 2
What's New in WaterGEMS and WaterCAD CONNECT Edition Update 2 - build 10.02.01.06
What's New with WaterGEMS and WaterCAD CONNECT Edition Update 1
Consuming ContextCapture production files within your hydraulic model
Convergence NOT achieved Message when computing StormCAD or SewerCAD model
Converting Junctions or Hydrants to Isolation Valves
Displaying Shapefile Labels (Text) As a Background
Error 32768 when opening model while integrated with ProjectWise
Error installing patch set: "Cannot create output file: ..."
Error when opening PondPack: "Object reference not set to an instance of an object" or "Application has generated an exception that could not be handled."
Error when saving or validating: System.AccessViolationException: Attempted to read or write protected memory.
File Open Dialog does not appear
Flextable Report of Multiple Element Types
Get to know OpenFlows CONNECT Edition
Get to know WaterGEMS, WaterCAD and HAMMER CONNECT Edition
Help and Documentation
How do I import/export multiple point pump curve pump definitions into a model using ModelBuilder?
How do you save backup files, so they save at different times and multiple levels?
How does the intermediate geodatabase (.mdb) file function in WaterGEMS for ArcMap?
How to Delete Engineering Libraries
How to Find Total Pipe Water Volume
How to receive alerts on new version availability?
How to register DAO360.dll or a dll file?
How to search using wild cards on a sqlite type of database
How to See Hebrew or Arabic text in a .DXF file that was exported from WaterGEMS/WaterCAD
Hydraulic grade discontinuity at steep pipes or across nodes (frontwater analysis)
I get a red user notification that says, "Inlet guttter mannings n should be greater than 0".
Importing .HLB library files from old product versions into format used in the V8 product versions
Importing External Data in Geographic Coordinate Systems
Importing storm data and other library information from older versions
In the AutoCAD platform, is there a way to change the shape of an element?
Internal Software Error when trying to print network
Layout and Data Input
Licensing / Activation
Locating OpenFlows product error log file
Locating OpenFlows Product Version Number and License Information
Model backward / forward compatibility
Model can be opened and used by multiple users
Modelbuilder for WaterGEMs for ArcMap only creates one pipe
Modeling a closed loop system
Modeling a flow split (diversion) with the SewerCAD or StormCAD numerical solver
Modeling turbine load acceptance plus load rejection
Multiple CN numbers for a catchment and multiple catchments with a single outlet node
Multiplying inflow loads by a certain factor
Network Navigator Trace Upstream/Downstream does not return any elements
No Pressure Pipe Flextable in CivilStorm
Not seeing changes to demands or status after exporting Darwin Designer run
OpenFlows Product TechNotes And FAQs
OpenFlows SewerOPS TechNotes and FAQs
OpenFlows software numerical solver theory
OpenFlows WaterOPS TechNotes and FAQs
Output and Reporting
Percent Connected Impervious Areas and Percent Unconnected Impervious Areas
Performing a hydrosanitary design in WaterGEMS or WaterCAD
PondPack user notification: "The composite outlet structure is either not selected or deleted."
PondPack: How to perform a critical duration analysis?
Presentation of elements in right-click-menu reports
Pressure pipe vs. conduit between pump and wetwell
Print Preview > Fit to Page shows blank page
Properties not working when using MicroStation integration with ProjectWise
Properties, Flextables, user notifications, or other dialog is missing or will not open in standalone
Properties, user notifications, or other tool managers not showing up in Integrated version of AutoCAD
Receiving error message when trying to save project
Reusing Pump Definitions (Import / Export)
Reversing orientation of Pipes and Conduits in Bulk
Saving a hydraulic model when using the AutoCAD platform (i.e. integrated)
Setting the invert elevation for multiple conduits coming into one manhole
Simple Controls vs. Logical Controls
Sorting and relabeling a flextable based on upstream-downstream order
Source of the default Specific Speed for pumps and turbines
Step by step procedure for finding the curb length needed to capture 100% of gutter flow in a curb inlet with a continuously depressed gutter with no clogging
System.Reflection.TargetInvocationException crash when trying to open the application
Test Wiki Page - A1
Text, cells/blocks and line styles do not display correctly in a DXF background layer
The flow annotation (label) in my WaterGEMS for ArcMap isn't reflecting the value displayed in my Geotable or Flextable
The total area in the CN/Area Collection does not equal the total catchment area
Time tolerance setting in SCADAConnect Simulator
Troubleshooting ArcMap / ArcGIS Integration (menus or toolbars not showing)
Understanding Flow (Additional Subsurface) and Flow (Additional Carryover)
Unit of pressure measure "bar" for German language settings
Upcoming training and release dates for OpenFlows products
User notification "Downstream TW out of range..."
User notification "Pump exceeds the maximum operating point specified for the pump curve"
User Notification - The captured surface flow at this node does not connect a valid subsurface network. The flow is lost from the system.
User Notification: "There is an error in the data for this pipe. The associated data is incorrect"
User Notification: Cross section maximum elevation is above the maximum headwater elevation
User notifications about missing or inactive downstream pipes generated, but they are present and active in the model
User Notifications: "Pump On elevation is not in the range of upstream ...." and "Off elevation of pump is lower than ..."
Using batch pipe split to fix nodes that overlay a pipe instead of connecting to it
Using PondMaker with different tailwater for each return event
Valve "Status (Initial)" Definitions
Velocity Calculations and the Average Velocity Methods in SewerCAD and StormCAD
Viewing graph data for multiple scenarios
Water age results in a pipe are different from the age in the downstream junction
Water Loss Management
Water quality Analysis during transient events
What are the limitations of importing/exporting EPANET files?
What is the dotted line that is associated with the isolation valves? Can I turn them off?
What's new in WaterCAD, WaterGEMS and HAMMER V8i SELECTseries 6 with CONNECT Integration?
What's New in WaterOPS CONNECT Edition 2.3 (Build 10.02.03.06)
When I do a copy/paste of zones they do not show up in the flex table.
When the user changes the fluid, why doesn't the calculated pump head change?
Working From Home With Your OpenFlows Software
Fire flow analysis at the time of minimum pressure (EPS Fire Flow Analysis Tool)
Tue, Oct 29 2019 4:08 PM
Wed, Oct 9 2019 3:24 PM
Tue, Oct 8 2019 3:49 PM
Tue, Oct 8 2019 10:30 AM
Wed, Jan 23 2019 10:30 AM
Wed, Jan 23 2019 10:26 AM
Thu, Dec 28 2017 11:58 AM
Wed, Dec 27 2017 1:53 PM
Tue, Dec 12 2017 11:42 AM
Mon, Oct 9 2017 1:14 PM
Mon, Oct 9 2017 12:57 PM
View current version
Secure File Upload
Support and Services
Subscription Services Portal
Training and Learning
About Bentley Institute
My Learning History
© 2020 Bentley Systems, Incorporated