head loss

See also: headloss

English

Noun

head loss (countable and uncountable, plural head losses)

  1. The pressure lost in a hydraulic system as fluid moves through a pipeline.
    • 1995, Barbara Hauser, Practical Hydraulics Handbook, Second Edition, →ISBN, page 71:
      Determination of minor head loss is simple and straightforward, and a standared nomograph in common use is included at the end of the chapter.
    • 2000, Frank R. Spellman, The Science of Water, →ISBN, page 74:
      The total head loss is the sum of the head losses of all of the component pipes.
    • 2001, American Water Works Association, Butterfly Valves - Torque, Head Loss, and Cavitation, →ISBN, page 55:
      A butterfly valve, like any restriction in a pipeline, is a source of head loss.
  2. (informal, sports) A loss of self-control leading to poor conduct.
    • 2023 March 20, Mitchell Wilks, “Aleksandar Mitrovic charged with ‘violent and improper conduct’ by FA over Man Utd incident as Marco Silva and Fulham also penalised”, in Goal.com[1]:
      Fulham will have time to assess their head loss and learn from it over the international break.

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