InfoWater’s fire flow tool has been updated to simplify the use of the tool and the results. Fire flow can be evaluated two ways using a standard fire flow run or a design fire flow run. A standard fire flow run maintains the residual pressure at the hydrant and the design fire flow run maintains the residual pressure at the hydrant and at the selected critical nodes. The first update made to the tool was simplifying between these two runs.
The standard fire flow run uses the residual pressure option and calculates the available flow at the hydrant only maintaining the residual pressure at the hydrant. During a standard fire flow run, the user can select the time of day, the duration of the fire flow, the maximum velocity for selected pipes, and generate hydraulic reports for any elements in the system. The options are shown below in the blue highlighted area.
Many modelers make use of the “Join all Layer Tables” feature within InfoWater as it quickly joins all of the input and output data tables for each of the six InfoWater element data types to their associated ArcGIS Layer. This workflow instructs the user in how to complete the joining or removing of layer data with a single mouse click instead of four separate mouse clicks that are necessary when using the InfoWater menu path for these commands.
Due to limitations in ArcGIS, joined tables may not always update especially if the columns associated with the output data joined are changed from when the original join occurred. Typically this may occur if you join the tables and run a Standard analysis and the rerun the analysis using the Fire flow simulator. Because the output reports for these two analyses are different and have different fields, it is not possible to directly update the data due to ArcGIS joining methodology without first removing the join and then joining the data over again. Recent InfoWater changes will now automatically remove the joined tables when certain commands are completed that would run into this type of conflict such as different output data requires new output fields. This was changed to avoid user confusion when ArcGIS limitations were found to cause the joined table data to not properly update under certain conditions.
Because joining tables using the menu tools can take four separate mouse clicks, any change that automatically breaks the table joins can lead to modeler frustration as the user would have to continually rejoin the data to make full use of this feature. This post documents how a user can simplify the join procedure down to a simple click using a custom toolbar. This workflow procedure shown below can greatly speed up the table joining ( or removing tabular joins) especially if tables may need to be joined repeatedly due to this change in the software programming. Continue reading
It can be useful to be able to the select objects of an InfoNet collection network whilst in a modelling environment, namely InfoWorks ICM. With an InfoNet collection network loaded as a background network onto a model GeoPlan it is possible to select using the select tool as well as SQL. From the selection of the assets a model can be built. The one problem is that the tracing tools, trace and select link downstream and trace and select link upstream do not work on the background model.
Asset Network in a Model (Tracing Tools)
The workaround to this is to open the InfoNet Collection Network as well as having it open in the InfoWorks ICM GeoPlan. The trace can be carried out in the InfoNet GeoPlan, the objects are then selected in the model. The model can now be built from this selection.
Trace in InfoNet, Select in ICM
Why do you need Advanced Valve Control?
Pressure Reducing Valve (PRV) and Pressure Sustaining Valve (PSV) are widely used in the water models to separate pressure zones and avoid extremely high and low pressures within a water distribution network. As hydraulic conditions in the water distribution network are highly dynamics, many control valves are designed to be able to automatically adjust their opening based on the system demand or the pressure at a remote location. Therefore, InfoWater provides two advanced modeling options for PRV/PSV to meet the above modeling needs. One is to control PRV/PSV based on a curve that describes how the pressure setting changes with flow; the other is to control PRV/PSV based on a remote junction. The following uses PRV as an example and shows how to implement both control options within InfoWater.
Usually the flow through a PRV does not affect or control the PRV’s pressure setting. In Figure 1, we can see that the PRV’s downstream pressure remains at 50 psi (i.e., PRV pressure setting) through time.
Want to show direction of pipe dictated by upstream to downstream manhole? Try the following.
1. Right click on the GeoPlan and choose ‘Properties & Themes’.
2. Identify the Pipe Layer and click on the Theme button, see image below.
GeoPlan Properties & Themes Dialog Box. Pipe Layer, Theme Button.
3. In the Pipe: Base Theme Dialog box edit the Base Theme, by first of all ticking the ‘Arrows’ check box and then selecting the value one in the combo-box from the newly displayed Arrows theme column. See image below.
Quick one… Let’s say I want to add to my notes field and start a new paragraph. How do I do this?
Well I would need to familiarise myself with be the use of NL() function, which returns a new-line character.
For example, to set up a three line note field:
SET notes = ‘Set’ + NL() + ‘new’ + NL() + ‘line’
Writing to Notes, Including a Return Carriage Character
Results in Notes Field
And so to add to existing notes try the following:
SET notes = notes + NL() + ‘Set’ + NL() + ‘new’ + NL() +’line’
SQL to add to existing Notes field
Often we wish to see the difference between two sets of results displayed in the GeoPlan. This can easily be done in InfoWorks ICM and InfoWorks WS by using a SQL Theme.
In the example below I will be using a 2D mesh but it could be pressure at a node, or flow in a conduit.
Step 1: With a set of results already open Right Click on the second set of simulation results and Open As
Step 2: Select As Alternate Results For Comparison
Note that the header bar shows that both simulations are open in the same GeoPlan view. Also note that for this particular theme the mesh needs to be the same in each simulation.
InfoMaster is a NASSCO Certified Asset Management software for PACP/MACP/LACP data (in addition, the MSCC, EN 13508-2, WSA-05, and New Zealand standards are supported). As such, InfoMaster handles all required fields from a given survey. However, perhaps there are only a few fields that matter to you the most when reviewing or analyzing your CCTV data in InfoMaster. Our interactive data table lets you customize which fields are visible, group fields together, and expand/collapse these groups to simplify your tabular view and enhance the overall viewing capabilities of CCTV data in InfoMaster in tandem with the 3-D internal view.
Simply click the “Edit Fields” button on the Inspections tab…
And you can go from this:
A case study has been written by one of our clients that shows how their modellers have used InfoWorks ICM functionality to represent the interaction of groundwater flow with their integrated InfoWorks ICM model network. The paper was originally presented at CIWEM’s ‘Surface Water Management’ 2014 conference and the British Hydrological Society’s ‘Groundwater Extremes and Surface Water Impacts’ conference. The paper is available on the Innovyze website at the following link:-
The case study describes a novel approach to linking groundwater representation with an integrated sewer model in chalk-dominated region for a study for Southern Water and West Sussex County Council. This formed the basis for simulating design storms with appropriate antecedent conditions.
Our thanks to the case study authors, Adam Cambridge, Senior Consultant, and William Rust, Assistant Hydrologists both from Atkins, UK for sharing this case study with us. If you have a case study or an interesting project which utilises Innovyze software, such as InfoWorks ICM, which you would like to share with others users, please let us know.
Bridges in ICM are dealt with differently to the empirical Arch Bridge (HR Wallingford, 1988) and US BPR Bridge (US Federal Highway Administration, 1978) approaches in Infoworks RS. The approach in ICM has much more in common with the approach used in HECRAS (USACE, 2008) and also described in the Afflux Estimation System (DEFRA/Environment Agency, 2007). The approach is considered to be much more physically meaningful than the empirical approaches derived from limited experimental data. This blogs provides a description of the types of losses that can be represented within Infoworks ICM.
There are a number of different losses which can be represented in ICM bridge links. These are:-
Posted in InfoWorks ICM, InfoWorks RS
Tagged Arch Bridge, Bridges, Contraction, Culvert, Expansion, HECRAS, IWRS, Overtopping, Piers, US BPR Bridge