Sensitivity Analysis With InfoWorks WS Pro

By Luca Serena

How critical is the telemetry initialization of your hydraulic model when assessing the impact of an incident?

There is not a unique answer to that question, variations on boundary conditions will have different impacts depending on several variables, such as the amount of storage is available within the network, burst size and duration, incident location, etc.

We could assume that running a model with a small size burst and plenty of storage available won’t cause much difference in results whether you have successfully updated all of your boundary conditions from telemetry or if you have 1 or 2 missing values, with the software that is therefore prompted to use the default setting for that specific parameter.

In this article, we are going to see how we can leverage the InfoWorks WS Pro Generalised Multi Run functionality to perform sensitivity analysis for having or not having a fully updated model. In this sense, we’ll be considering the initial depth value missing for a single reservoir object at a time.