Tests of a proposed friction-factor equation have shown it to be accurate for calculating pressure loss in turbulent flow for a pipeline transporting a non-Newtonian fluid, such as most crude oils and petroleum products. The accuracy of the proposed equation was checked statistically and by measured and field-calculated data. Turbulent pressure loss due to friction in any pipeline can be calculated only if the friction factor is first determined. Determining this factor poses a significant problem for a pipeline engineer designing for non-Newtonian fluids because of the large number of friction-factor equations available in literature. The present research work set out to compare among the different friction-factor equations and propose an accurate one. The results led to proposal of a regression equation for calculating the friction factor based on the available measured data.


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    Title :

    New equation calculates friction factor for turbulent flow of non-Newtonian fluids


    Additional title:

    Eine neue Gleichung zur Berechnung des Reibungsfaktor für turbulente Strömung einer nicht-Newtonschen Flüssigkeit


    Contributors:
    El-Emam, N. (author) / Kamel, A.H. (author) / El-Shafei, M. (author) / El-Batrawy, A. (author)

    Published in:

    Oil and Gas Journal ; 101 , 36 ; 74-83


    Publication date :

    2003


    Size :

    8 Seiten, 7 Bilder, 2 Tabellen, 15 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English