From the pipe, the demand then is distributed to the nodes at the ends of the pipe by using a distribution strategy. You may need to translate the data contained within the source - such as population, land area, etc. Do you use social media - such manuap Facebook or Twitter updates, YouTube videos, or discussion forums - for work-related purposes? The total flow is then equally divided among the demand nodes within each of the meter route polygons. Click here to sign up.įor each of these meter route polygons, the total flow is known. Due to the need for service polygons, the initial setup for this approach is more involved than the meter assignment strategy - the trade-off is greater control over the assignment of meters to demand nodes. Bentley WaterGEMS V8i (SELECTseries 5)Įach service polygon has an associated demand node, watergrms the flow that is calculated for each service polygon is assigned to this demand node.
The equal flow distribution option simply divides the known flow evenly between the demand nodes. The greater the percentage of the lump-sum area or population that a service polygon contains, the greater the percentage of total flow assigned to that service polygon. When simulating these dynamics in your water distribution model, an accurate representation of system demands is as critical as a precise model of the physical components of the model. LoadBuilder facilitates the tasks of demand allocation and projection.
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To realize watedgems full potential of the model as a master planning and decision support tool, you must accurately allocate demands while anticipating future demands. The conversion required will depend on the source data used. The known flow watregems the lump-sum area generally is divided among the service polygons within the area using one of two techniques - equal distribution or proportional distribution: On Saturday When creating a schematic drawing, pipe lengths are entered manually. 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. This conversion entails translating the data contained within your data source to flow, which you then can apply using LoadBuilder. Ideally, you should place these meter points at the location of the tap, but you may only know the centroid of the building or land parcel for a customer account. Check out our Forum Guide for the instructions all forum members agree to abide. This technique is unnecessary if all demands are accounted for using one of the other allocation strategies.Įstimation of Demands Using Land Use and Population Data Automated techniques also can assist in the estimation of demands using land use and population density data.
Automated construction of the service polygons may not produce the desired results, so you may need to adjust the polygon boundaries manually, especially at the edges of the drawing.ĭue to the difficulties associated with manually loading the model, you can use automated techniques developed to assist with this task.
It is easy because of the many awesome features such as auto complete, code inspector. You can base the water-use data for these lump-sum areas on system meter data from pump stations, treatment plants or flow control valves, meter routes, pressure zones and TAZ traffic analysis zones. WaterGEMS® is a hydraulic and water quality modeling solution for water distribution systems potential manual-input mistakes. distribution network model created in Bentley WaterGEMS and performing a hydraulic transient entered manually to complete the layout. DAA/ Bentley WaterGEMS V8i User’s Guide Technical Information Resources Glossary Bentley WaterGEMS V8i User’s Guide 1-i WaterGEMS.