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University of North Carolina, Chapel Hill, Formas de encontrar el factor de fricción, MATH 123A.

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Formas de encontrar el factor de fricción, University of North Carolina, Chapel Hill, MATH 123A

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Factor de fricción, pérdidas de carga y pérdidas de presión
DATOS:
e Rugosidad de la tubería 0.0003 m
D Diámetro interno de la tubería = tamaño nominal de la tubería - 2 * schedule de la tubería. 5m
L Longitud de la tubería 184 m
V Velocidad promedio del fluido – la velocidad media del flujo en la sección transversal. 5.857 m/s
u Viscosidad dinámica – la viscosidad dinámica del líquido de trabajo. 0.001002 Kg/(m.s)
ρ Densidad – la densidad del líquido de trabajo a la temperatura de referencia. 1000 Kg/m3

RESULTADOS:
Re Número de Reynolds – determina el tipo de flujo en la tubería. 𝑅 _𝑒= (𝜌∗ 𝐷∗ 𝑉)/𝜇 29226546.91 -
Laminar: Retubería < 2300
Transitorio: 2300 ≤ Retubería ≤ 4000
Turbulento: Retubería > 4000 Tipo de flujo en la tubería: Turbulento -



1. Solución por proceso de iteración

- Ecuación de Colebrook y White: 0.9999752968 -


¡Solo para flujos turbulentos!
f Factor de fricción ¡Solo para flujos turbulentos! 0.0109932892 -
¡Solo para flujos turbulentos!



2. Ecuaciones de Wood (1966)

0.0105808144




Christos Samaras 10 + 1 Ways To Find The Friction Factor In Pipes Page 1 of 16

, 1.221431799




0.4403391321




f Factor de fricción 0.0112108937




1) SI


Limitaciones:
Limitaciones:
2) SI




3. Ecuaciones de Swamee - Jain (1976)


f Factor de fricción - -




1) NO -
Limitaciones:

2) SI -




Christos Samaras 10 + 1 Ways To Find The Friction Factor In Pipes Page 2 of 16

, 4. Ecuaciones de Churchill (1977)


7.689589E+22 -




5.465337E-47 -




f Factor de fricción 0.0110243273 -


¡Válido para todos los números de Reynolds (Re)¡



5. Ecuación de Chen (1979)


f Factor de fricción 0.0109971405 -


¡Válido para todos los números de Reynolds (Re)¡



6. Ecuación de Round (1980)
6. Ecuación de Round (1980)
f Factor de fricción ¡Solo para flujos turbulentos! 0.0119611567 -




Christos Samaras 10 + 1 Ways To Find The Friction Factor In Pipes Page 3 of 16

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