Introducing Automatic Calibration

Any referenced datasets can be downloaded from "Module downloads" in the module overview.

Video quiz

Which of the following networks would be ideal for using the Auto Calibration function in InfoWorks WS Pro?

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InfoWorks WS Pro provides an automatic calibration facility.

A presentation slide on Automatic Calibration describes how it speeds up work on models where friction factors have a predominant role, and that it is well-suited for all-mains models, but is not for use on networks with pressure controls.

There are some elements that are not accounted for in Auto-Calibration, including partially closed valves, inefficient pumps, and incorrect PRV or PSV settings.

A presentation slide listing the elements that are not accounted for in auto-calibration, including partially closed valves, inefficient pumps, and incorrect PRV or PSV settings.

Prerequisites for network model calibration include pressure verdicts listed as Fair and Good since auto-calibration should not be used if an accurate flow balance is not achieved:

A presentation slide displays the prerequisites for network model calibration, and it shows a part of a grid report where pressure verdicts are listed as Fair and Good since auto-calibration should not be used if an accurate flow balance is not achieved.

Auto-calibration offers certain benefits:

A presentation slide about the usefulness of the Auto Calibration Utility in data loggers, telemetry systems, and SCADA.

The auto-calibration method is based on a repetitive user-defined snapshot analysis that includes pressure observation points:

A presentation slide listing the information the snapshot analysis includes, such as a peak demand time step and adjusted friction factors.

The algorithm used is based on common engineering practice:

A presentation slide listing the factors of the algorithm used during the auto calibration, where friction coefficients are the predominant factor.

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