DAA/ Bentley WaterGEMS V8i User’s Guide Technical Information Resources Glossary Bentley WaterGEMS V8i User’s Guide 1-i WaterGEMS. distribution network model created in Bentley WaterGEMS and performing a hydraulic transient entered manually to complete the layout. You may need to. WaterGEMS® is a hydraulic and water quality modeling solution for water distribution systems potential manual-input mistakes. BENTLEY WATERGEMS.

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Skip to main content. Assigning metered demands to nodes is a point-to-point demand allocation technique, meaning that known point demands customer meters are assigned to bfntley demand points demand nodes.

Meter assignment is the simplest technique in terms of required data because you don’t need to apply service polygons figure 1.

Remember me on this computer. If the data relates satergems projected values, you can use it for demand projections. The lump-sum area in this case is a polygon feature class that represents meter route areas. The demands associated with the meters within each of the service area polygons is assigned to the respective demand node points.

This strategy requires the definition of lump-sum area or population polygons in the GIS, service polygons in the model and their related demand nodes.

Productivity Corner: Using Bentley WaterGEMS with GIS Data for Water Demand Allocation

Service polygons define the service area for each of the demand nodes. Actify SpinFire Professional v8.

This conversion entails translating the data contained within your data source to flow, which you then can apply using LoadBuilder. You can use various data types with this technique, including future land use, projected population or demand density in polygon form with the polygons based upon traffic analysis zones, census tracts, planning districts or other classifications. Sometimes you must use the flow distribution technique to assign unaccounted-for water to nodes and when any method that uses manua, metering data as opposed to system metering data is implemented.


Infonet only can import xml files from Wincan V8. There is one flow rate per polygon, and you cannot overlap open space between the polygons.

Bentley WaterGEMS V8i (SELECTseries 5)

You can determine a projected demand for each of the service areas and assign the demand nodes associated with each service polygon. In her easy-to-follow, friendly style, long-time Cadalyst contributing editor Lynn Allen guides you through a new feature or time-saving trick in every episode of her popular AutoCAD Video Tips.

Follow Lynn on Twitter. Point Demand Assignment A point demand assignment technique is used to assign a demand directly to a demand node. Meter assignment can prove less accurate than the more complex allocation strategies because the nearest node is determined by straight-line proximity between the demand node and the consumption meter.

This strategy primarily is a manual operation and is used to assign large generally industrial or commercial water users to the demand node that serves the consumer in question. The consumption of water is the driving force behind the hydraulic dynamics occurring in water distribution systems.

Bentley WaterGEMS V8i (SELECTseries 5)

You can base the water-use data for these lump-sum areas on system meter data from pump stations, treatment plants or flow watergemss valves, meter routes, pressure zones and TAZ traffic analysis zones. Discover the exceptional performance of DxO Optics Pro. It is easy because of the many awesome features such as auto complete, code inspector.


The equal flow distribution option simply divides the known flow evenly between the demand nodes. These are some keyword suggestions for the term “Watercad”. Many of these data types do not include demand information, so further data conversion is required to translate the information contained in the future condition polygons into projected demand values. Distribution This strategy involves distributing lump-sum area water-use data among a number of service polygons service areas and, by extension, their associated demand nodes.

In addition, you may not know the actual location of the service meter. Do you use social media — such as Facebook or Twitter updates, YouTube videos, or discussion forums — for work-related purposes?

After an appropriate conversion method is in place, the service feature class containing the service areas and demand nodes is overlaid with the future condition polygon feature class. An example of meter assignment.

Manual Watercad V8 | Rahim Hashim –

When using the nearest pipe meter assignment strategy, the demands at a meter are assigned to the nearest pipe. The known flow within the lump-sum area generally is divided among the service polygons within the area using one of two techniques — equal distribution or proportional distribution: Assigning metered demands to pipes also is a point-to-point assignment technique, because you still must assign demands to node elements, but an additional step is involved.

Spatial allocation of demands is the most common approach to loading a water distribution model.