WSEAS Transactions on Fluid Mechanics


Print ISSN: 1790-5087
E-ISSN: 2224-347X

Volume 12, 2017

Notice: As of 2014 and for the forthcoming years, the publication frequency/periodicity of WSEAS Journals is adapted to the 'continuously updated' model. What this means is that instead of being separated into issues, new papers will be added on a continuous basis, allowing a more regular flow and shorter publication times. The papers will appear in reverse order, therefore the most recent one will be on top.

Volume 12, 2017


Numerical Analysis of Two Phase Flow Patterns in Vertical and Horizontal Pipes

AUTHORS: Mohammed A. Abdulwahid, Hasanain J. Kareem, Mujtaba A. Almudhaffar

Download as PDF

ABSTRACT: This paper is provided a numerical simulation of flow patterns (bubble, slug/ Taylor bubble, churn/ stratified wave flow, annular) of air-water two phase flow. ANSYS FLUENT program with VOF homogenous model through unsteady state turbulent flow employed to study the effect of holdup, void fraction and liquid film thickness on the pressure drop through the vertical and horizontal pipes with the 90º elbow. K-ɛ (Realizable) model has been used in order to solve the turbulent flow with bubble and slug flow patterns; whereas (RNG) model with churn and annular flow patterns by depending on the values of viscosity and density of the flow mixture.

KEYWORDS: flow patterns, VOF, two phase, holdup, void fraction, numerical analysis

REFERENCES:

[1] P. Loilier, 'Numerical simulation of twophase gas-liquid flows in inclined and vertical pipelines,' Cranfield University, 2006.

[2] S. Wongwises and M. Pipathattakul, 'Flow pattern, pressure drop and void fraction of two-phase gas–liquid flow in an inclined narrow annular channel,' Experimental Thermal in journal of Fluid Science, vol. 30, pp. 345-354, 2006.

[3] P. Spedding and E. Bénard, 'Gas–liquid two phase flow through a vertical 90 elbow bend,' Experimental Thermal in journal of fluid science, vol. 31, pp. 761-769, 2007.

[4] E. Da Riva and D. Del Col, 'Numerical simulation of churn flow in a vertical pipe,' Journal of Chemical Engineering Science, vol. 64, pp. 3753-3765, 2009.

[5] M. Abdulkadir, 'Experimental and computational fluid dynamics (CFD) studies of gas-liquid flow in bends,' University of Nottingham, 2011.

[6] Q. H. Mazumder, 'CFD Analysis of the effect of elbow radius on pressure drop in multiphase flow,' Modelling and Simulation in Journal of fluid science, vol. 2012, p. 37, 2012.

[7] N. Aung and T. Yuwono, 'Computational Fluid Dynamics Simulations of Gas-Liquid Two-Phase Flow Characteristics through a Vertical to Horizontal Right Angled Elbow,' ASEAN Journal on Science and Technology for Development, vol. 30, pp. 1- 16, 2013.

[8] M. S. Yadav, S. Kim, K. Tien, and S. M. Bajorek, 'Experiments on geometric effects of 90-degree vertical-upward elbow in air water two-phase flow,' International Journal of Multiphase Flow, vol. 65, pp. 98- 107, 2014.

[9] F. Saidj, R. Kibboua, A. Azzi, N. Ababou, and B. J. Azzopardi, 'Experimental investigation of air–water two-phase flow through vertical 90° bend,' Experimental Thermal in journal of Fluid Science, vol. 57, pp. 226-234, 2014.

[10] R. E. Vieira, N. R. Kesana, C. F. Torres, B. S. McLaury, S. A. Shirazi, E. Schleicher, et al., 'Experimental investigation of horizontal gas–liquid stratified and annular flow using wire-mesh sensor,' Journal of Fluids Engineering, vol. 136, p. 121301, 2014

[11] A. FLUENT, '15-Theory Guide, ANSYS,' Inc., Canonsburg, PA, 2013.

WSEAS Transactions on Fluid Mechanics, ISSN / E-ISSN: 1790-5087 / 2224-347X, Volume 12, 2017, Art. #15, pp. 131-140


Copyright © 2017 Author(s) retain the copyright of this article. This article is published under the terms of the Creative Commons Attribution License 4.0

Bulletin Board

Currently:

The editorial board is accepting papers.


WSEAS Main Site