Calculating head & headloss
Just a heads-up—this section is still a work in progress! I’ll be revising and expanding it soon to make sure it’s as useful as possible. Curious about what’s already done or currently in the works? Check the changelog for updates.
Now that you have a grasp of what head is, let's get into the nuts and bolts of how we calculate it and, just as importantly, how we account for the energy that water loses as it travels through the distribution network.
This section revisits one of the cornerstone principles of fluid mechanics: Bernoulli’s equation. We’ll break it down into its understandable components — elevation head, pressure head, and velocity head — and focus on that crucial fourth term: the energy losses, primarily due to friction. Understanding and accurately quantifying these losses is absolutely key to predicting pressures and flows correctly in your model.
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