Firefighter Nozzle Reaction

  title={Firefighter Nozzle Reaction},
  author={S. K. Chin and Grunde Jomaas and Peter B. Sunderland},
  journal={Fire Technology},
Nozzle reaction and hose tension are analyzed using conservation of fluid momentum and assuming steady, inviscid flow and a flexible hose in frictionless contact with the ground. An expression that is independent of the bend angle is derived for the hose tension. If this tension is exceeded owing to anchor forces, the hose becomes straight. The nozzle reaction is found to equal the jet momentum flow rate, and it does not change when an elbow connects the hose to the nozzle. A forward force must… 
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