What’s on the Pipe Head Losses poster
The rule, 3 worked examples, and the mistake everyone makes.
- Head is lost along a pipe by wall friction, and at every fitting by local turbulence.
- hf = f (L/D) v²/2g · hm = K v²/2g
- Double the velocity = Losses rise 4 times
- Halve the diameter = Loss rises about 32×
- A 90° bend = K around 0.3 to 1.0
- Common mistake: Counting friction loss only → Add bends, valves and entries
Educational reference. Friction factor depends on Reynolds number and roughness. Use Moody or Colebrook, not a guess.
Questions about the Pipe Head Losses poster
- What’s on the Pipe Head Losses poster?
- The rule, 3 worked examples, and the mistake everyone makes. Head is lost along a pipe by wall friction, and at every fitting by local turbulence.; hf = f (L/D) v²/2g · hm = K v²/2g; Double the velocity = Losses rise 4 times; Halve the diameter = Loss rises about 32×; A 90° bend = K around 0.3 to 1.0; Common mistake: Counting friction loss only → Add bends, valves and entries. Educational reference. Friction factor depends on Reynolds number and roughness. Use Moody or Colebrook, not a guess.
- Who is the Pipe Head Losses poster for?
- Pipe Head Losses belongs to the Civil Engineering section rather than to a school year, because engineering is not something one grade owns. Anyone learning water resources can pin it up — a beginner, a student mid-course, or someone revising years later.
- When should you use the Pipe Head Losses poster?
- Sizing a rising main, or working out why a pump will not deliver. A wall chart earns its place by being glanceable from where the work is happening, so Pipe Head Losses belongs on the wall where that engineering work actually happens, within glancing distance, rather than filed away.
- What other posters go with Pipe Head Losses?
- Culvert Design, Continuity & Energy and Groundwater & Wells sit alongside Pipe Head Losses in the Civil Engineering section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Culvert DesignContinuity & EnergyGroundwater & Wells
- Is the Pipe Head Losses poster free to download and print?
- Yes. Pipe Head Losses downloads as a free PDF with no account, no email and no watermark, like everything else in the Civil Engineering section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
- What size does the Pipe Head Losses poster print at?
- Pipe Head Losses is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Pipe Head Losses loses nothing.Printing guide
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