2017
DOI: 10.1080/09715010.2017.1333926
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Prediction of the friction factor in pipes using model tree

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Cited by 29 publications
(11 citation statements)
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“…11 is assumed as a function that is always continuous and differentiable, the derivative of the function can be obtained in respect to F. The Eq. 11 has the capability for rapid convergence, especially if there is an adequate estimation of the initial value of the friction factor (Augusto et al, 2016) (Najafzadeh et al, 2018).…”
Section: ( )mentioning
confidence: 99%
“…11 is assumed as a function that is always continuous and differentiable, the derivative of the function can be obtained in respect to F. The Eq. 11 has the capability for rapid convergence, especially if there is an adequate estimation of the initial value of the friction factor (Augusto et al, 2016) (Najafzadeh et al, 2018).…”
Section: ( )mentioning
confidence: 99%
“…La ecuación (25) tiene capacidad de rápida convergencia, particularmente si hay una estimación adecuada del valor inicial del factor de fricción Najafzadeh et al, 2018). En este trabajo la ecuación (1) se resolvió utilizando el método de Newton (Koçak, 2011).…”
Section: Conunclassified
“…Ramos et al [ 13 ] proposed the friction coefficient for the turbulent flow in Newtonian fluids based on the phenomenon of momentum exchange in the region set by the geometric mean of viscosity and length. Najafzadeh et al [ 14 ] developed a model tree with parameters, such as diameter, mean velocity, and inner roughness, in order to accurately predict friction coefficients and improve existing models that require Reynolds number and relative roughness. Mishra et al [ 15 ] estimated the efficiency and applicability of the existing friction factor formulas.…”
Section: Introductionmentioning
confidence: 99%