Predicting the friction factor in straight pipes in the case of Bingham plastic and the power-law fluids by means of measurements and CFD simulation

Authors

  • Péter Csizmadia
    Affiliation
    Department of Hydrodynamic Systems, Budapest University of Technology and Economics
  • Csaba Hős
    Affiliation
    Department of Hydrodynamic Systems, Budapest University of Technology and Economics
https://doi.org/10.3311/PPch.2174

Abstract

In the petroleum, food and energy industry, non-Newtonian fluids are widely used and their transport in pipelines can be highly expensive. When designing such systems, predicting the pressure drop for a given flow rate is of primary importance. In this paper, the friction factor in straight pipelines is studied experimentally and by means of Computational Fluid Dynamics (CFD) techniques in the case of power-law and the Bingham plastic fluids. First, the accuracy of the CFD technique is demonstrated in the case of water. Then, a power-law fluid (Carbopol 971 solution) is examined experimentally and numerically and it is confirmed that by introducing the modified Reynolds number given in [1], the classic friction factor formulae can be used. In the case of the Bingham plastic fluids, CFD simulations were performed and friction factor curves for several Hedström numbers are reported which were found to be consistent with the corresponding literature.

Keywords:

Bingham plastic fluid, Carbopol 971 solution, CFD simulation, friction factor, power-law fluid

Citation data from Crossref and Scopus

Published Online

2013-06-26

How to Cite

Csizmadia, P., Hős, C. “Predicting the friction factor in straight pipes in the case of Bingham plastic and the power-law fluids by means of measurements and CFD simulation”, Periodica Polytechnica Chemical Engineering, 57(1-2), pp. 79–83, 2013. https://doi.org/10.3311/PPch.2174

Issue

Section

Articles