Publication
Optimal estimation of the roughness coefficient and friction factor of a pipeline
Journal Article (2021)
Journal
Journal of Fluids Engineering
Volume
143
Number
5
Doc link
https://doi.org/10.1115/1.4049674
File
Authors
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Santos-Ruiz, Ildeberto
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Lopez Estrada, Francisco Ronay
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Puig Cayuela, Vicenç
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Torres, Lizeth A
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Valencia-Palomo, Guillermo
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Gomez Penate, Samuel
Abstract
This work addresses the estimation of two interrelated parameters of the fluid flow in pipes. First, a numerical and experimental evaluation of some proposed methods to com-pute the friction factor in turbulent regime is presented. Special attention is given to an explicit solution obtained through the Lambert W-function. Subsequently, a method to estimate the roughness coefficient using nonlinear optimization techniques is proposed, which then allows determining the friction factor from it. Numerical tests were performed for a wide range of operating points of a pipeline. In order to validate the proposed approach, experimental analysis was carried out on a pipeline pilot-plant. The results show the applicability and effectiveness of the proposed method.
Categories
control theory.
Scientific reference
I. Santos-Ruiz, F.R. Lopez, V. Puig, L.A. Torres, G. Valencia-Palomo and S. Gomez. Optimal estimation of the roughness coefficient and friction factor of a pipeline. Journal of Fluids Engineering, 143(5), 2021.
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