OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Wiki
Improving performance of transient simulations (recommended reporting calculation options)
OpenFlows | Water infrastructure Wiki
"Calculation cancelled by user" when attempting to compute transient simulation in HAMMER
Calculations - Bentley HAMMER
"Initial flow is zero, which would result in a discharge coefficient equal to 0, which is not allowed."
"Reverse initial flow through pump or turbine. Change the flows in the pipes leading to this pump or turbine."
"Specify initial conditions" calculation option and "Transient (Initial)" element properties
"The transient results file doesn’t contain any time history data ..."
Are pipe bends (vertexes) used in the force calculations?
Changing transient solver accuracy and max trials
Convergence problems with turbine transient simulation
Crash when attempting to open Transient Results Viewer - "The given key was not present in the dictionary"
Crash when running analysis or other operations: Not enough quota is available to process this command
Dipping tube hydropneumatic tank results display sudden jump or appear unstable
Equation used in Wave Speed Calculator tool
Error computing HAMMER model: "The Darcy-Weisbach friction coefficient xxx is too large.
Flow is seemingly lost when moving downstream due to Line Packing in a transient simulation
Gradual closure not occurring when using valve operating rule
How are demands treated during the transient simulation in HAMMER?
How does HAMMER calculate the surge from air pocket collapse?
How does pump inertia effect the pump calculations during a transient simulation?
Improving performance of transient simulations (recommended reporting calculation options)
Method of Characteristics vs. Wave Plan Method
Numerical method used for transient simulations in HAMMER
Positive air outflow occurs when air valve pressure is negative during transient simulation
Problem with calculated pump flow vs nominal flow
Pump efficiency impact on transient results
Pump speed not constant before emergency pump shutdown transient event
Transient pressure wave not dampening or unexpected lack of headloss
Transient simulation fails with "Initial inflow to pump (turbine) not same as outflow..."
Troubleshooting an unexpected Initial Surge during a transient simulation
User notification: "Tank elevation is different than the tank base elevation..." and Modeling Vertical Pipes in HAMMER
What can cause a transient wave to dampen?
What standard method does HAMMER use to simulate vapor pockets? (column separation / Cavitation)
Combine, save and export profiles and graphs from the HAMMER transient results viewer
How much do VSP's/VFD's help to reduce the number or size of hydropneumatic tanks in a system?
Initial surge or transient event after adding a surge tank to a model.
Installation - BENTLEY HAMMER
Layout and Data Input - Bentley HAMMER
Modeling - Bentley HAMMER
Modeling a pump shut down transient event
Output and Reporting - Bentley HAMMER
User Notification: "Invalid results. Please check the input data for the connected elements."
What is the Transient Thematic Viewer in HAMMER?
What's New in HAMMER CONNECT Edition Update 2 - build 10.02.01.06
What's New in HAMMER CONNECT Edition Update 3 (build 10.03.00.69)
What's New in HAMMER CONNECT Edition Update 3 (version 10.03.05.XX)
What's New in HAMMER CONNECT Edition Update 3 - Build 10.03.01.08
What's New in HAMMER CONNECT Edition Update 3.4 (version 10.03.04.05)
What's New with Bentley HAMMER V8i SELECTseries 5
What's New with HAMMER CONNECT Edition Update 1
What's New with HAMMER CONNECT Edition Update 2
Help and Documentation
Licensing / Activation
Layout and Data Input
Output and Reporting
OpenFlows Product TechNotes And FAQs
Check boxes do not appear in tables such as Control Sets dialog
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
Enhancing OpenFlows multi-user workflows with ProjectWise Share
Error 32768 when opening model while integrated with ProjectWise
Errors installing patch set
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
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 or .GDB) file function with ArcMap and ArcGIS Pro integration?
How to Delete Engineering Libraries if you get a message about a Read-only database
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
Changing element symbols in the AutoCAD platform
Locating OpenFlows product error log file
Locating OpenFlows Product Version Number and License Information
Model backward / forward compatibility
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
Network Navigator Trace Upstream/Downstream does not return any elements
OpenFlows software numerical solver theory
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?
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 or appears to freeze the program in standalone
Properties, user notifications, or other tool managers not showing up in Integrated version of AutoCAD
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)
Important License Update for OpenFlows Users
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
Understanding Flow (Additional Subsurface) and Flow (Additional Carryover)
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: "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 the user changes the fluid, why doesn't the calculated pump head change?
Working From Home With Your OpenFlows Software
"An error occurred when trying to calibrate the model"
"COM Error Not Documented" when opening OpenFlows product
"Default license feature configuration not found. Product features may be limited. Please run the License Administrator."
"The Depth-Flow, Depth-Flow (Simulated Variable Speed) and Volume-Flow pump definition types are unsupported"
"Unable to assign attribute ... for element because enumeration value ... is not valid."
Add custom data to profile with User Data Extensions
After computing a model with the SWMM solver, what does the following warning mean: "Maximum depth increased for node CB-XX"?
After computing the model, the pump efficiency results are listed as N/A
After running loadbuilder I get a message that says "The layer <Layer_Name> could not be opened."
At what point does OpenFlows product license usage start when integrated with MicroStation?
Background image quality poor on some computers or Crash when opening models with background layers
Blocky stepwise pattern is displayed instead of a continous smooth pattern that was entered when using the SWMM engine
Can User Data Extensions be shared between elements in a model?
Catch basins imported as manholes from LandXML
Change in results before turbine load rejection occurs
Conduit "Size" attribute does not appear correctly in annotations or reports
Custom quadrant curve not being recognized
Date-time based query not working
Default license configuration not retaining setting
Do inactive elements count against the license count?
Does HAMMER support initially negative pressures?
Does the friction method affect local minor loss in pipes?
Does WaterGEMS and WaterCAD report pressures as gauge pressure or absolute pressure?
Efficiency Curve vs. Wire-to-Water Efficiency Curve
Error importing a LandXML file from StormCAD into Civil 3D "A pipe or conduit had an unsupported geometry"
Error message when validating model: "Elevation (Relative) values within the Irregular shape definition must be non-negative."
Error message: "Unrecognized database format ..." when trying to open model
Error Saving: "Custom results path is invalid"
Find if pump operates off of the pump curve during an automated fire flow scenario
Flow arrows are not included in an exported DGN file when using the Save Symbology option in the MicroStation platform
Flow from pump is delayed after pump startup
GeoPak - StormCAD errors - GEOPAK runtime environment not found / Error writing GEOPAK/PowerCivil node
HEC-22 2nd edition energy loss calculations with the Implicit solver
How are "pipe sets" and "nodes of interest" used in a flushing analysis to get auxiliary results at other elements?
How can I see the amount of inflow or outflow occuring for a particular surge tank during the transient simulation in HAMMER?
How do I filter a column in my flextable using a custom query that retrieves all records with a <None> attribute?
How do I know if and when my pond is overtopping and how to quantify it?
How do I save my model files when working in the ArcMap or ArcGIS Pro platform?
How do the channel slopes and velocity effect the headloss formulas in SewerCAD and StormCAD?
How does StormCAD handle gutter flow from an active catch basin to an inactive catch basin?
How does the diameter of an isolation valve effect the calculated results?
How to add comments on custom pump and turbine quadrant curves
How to find volume of water coming from a trace element?
How to open a .PRNX report file created on exporting custom report in OpenFlows product
Hydropneumatic tank atmospheric pressure not changing results
Hydropneumatic tank profile animation and time history shows zero gas volume
Initial surge when using turbine load acceptance operating case
Initial turbine HGL the same as the final HGL after load acceptance
Irregular Weir Flow Calculations in a Composite Outlet Structure
Is it possible to create old PondPack style text reports?
Is it possible to have a storm event start at a different time than the model simulation?
Is it possible to use point cloud information to populate elevations in Terrain Extractor (TRex)?
Is there a recommended level of Skelebration for different modeling conditions?
Junctions are created on top of one another after using ModelBuilder with the GIS-ID property
Learning Resource Guide for WaterSight
License usage in the ArcMap and ArcGIS Pro platform
LoadBuilder applying demands or loads to inactive elements
LoadBuilder importing zero flow loads
Log4net issues appear in security scans for OpenFlows products
Long time to load background layers
Manage Pump Speed Series
Manage Pump Time Series
Managing large number of scenarios
Missing Young's Modulus and Poisson's Ratio values in the material library
Modeling Arch section shapes in SewerGEMS
Modeling closed or pressurized pipes in PondPack
Modeling treatment for pollutants at nodes or ponds in SewerGEMS and CivilStorm
MrSid files are not available as a background layer type or an error is generated when loading MrSid files
OpenFlows Academic Books
Pipe Renewal Planner Vs OpenFlows WaterCAP
Pipes connecting to the wrong element after submodel import
Pipes not merging when using Skelebrator with series pipe merging
PondPack error: Unable to open user roster
Problems opening GEOPAK Drainage file exported from StormCAD
Purpose of the Virtual Flow Depth Calculation Option
Query, alert or formula UDX not working correctly with "=" (equals)
SCADAConnect in SewerGEMS
SCADAConnect Simulator in WaterCAD and WaterGEMS V8i SELECTseries 5
Series Pipe Merging in Skelebrator not working for pipes with zero diameter
Small difference in gutter worksheet result between US and SI units
The concentration at the stop node directly after a constituent source in a tank is decreasing rapidly
The control symbol, check valve symbol, and dashed lines connecting customer meters, isolation valves, and SCADA elements are not visible in the ArcMap or ArcGIS Pro platforms
The headloss in a pipe downstream of a parallel VSP is higher than expected
The result field "Depth (Flooding)" is listed as N/A after computing a model with the SWMM engine. Is there a way to see the depth of flooding for a node?
Translated version still showing as English
Troubleshooting making a SCADA connection to Oracle database
Troubleshooting ModelBuilder issues and errors connecting to an Oracle database
Unexpected small flow in pipes that should have zero flow
User Data Extension not appearing in the Post-Calculation Processor's "Output Property" field
User Data Extensions in the Fireflow report
User Notification "More than one VSPB cannot control the same control node"
User notification when computing: IDF data is not supported by SWMM. Storm event is excluded from export.
User notification: "Conduit has a Stop control structure, but this is not supported next to the connected outfall element."
User notification: "Transition from CONCENTRATED to EXTENDED"
Using Imperial and Metric Hydro International Vortex Valves
Using US Survey feet
Warning about outlet hydrograph not cresting
WaterGEMS and WaterCAD Data Import FAQ
WaterSight - Pump Overview
Wetwell flooded warning in steady state with GVF Convex (SewerCAD) solver
What can I do to speed it up a file I need to extract elevations from is taking a long time to process in TRex?
What does Entrance Control mean?
What is the best way to model an orifice plate inside a catchbasin with surface storage above the catchbasin rim?
What is the difference between a stand pipe and an inlet box?
What is the purpose the Rainfall File, Runoff File, and RDII File in the Calculations Options?
What is the workflow for setting up pre and postdeveloped conditions for multiple return events?
What kind of demands should be used as the initial conditions of a transient simulation?
What's new in HAMMER V8i SELECTseries 6?
When running a query, why is it not picking up the elements that it should?
Why are there 2 entries for the same alternative in the dropdown menu in the properties of a scenario? One with an "i" and one without it.
Why are there so many extra element types listed for WaterGEMS and WaterCAD, such as surge tank, rupture disk, Periodic head-flow?
Why do I get a warning message about the rational method being used for the modified rational method?
Will SCADA Results Publishing work with only OPC sources?
Improving performance of transient simulations (recommended reporting calculation options)
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