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research-article

An Experimental Study on the Performance of Drag-Reducing Polymers in Single and Multiphase Horizontal Flow Using Particle Image Velocimetry (PIV)

[+] Author and Article Information
Ihab Alsurakji

An-Najah National University, Department of Mechanical Engineering, Nablus 7, Palestine
isurakji@najah.edu

Abdelsalam Al-sarkhi

King Fahd University of Petroleum and Minerals, Department of Mechanical Engineering Dhahran 31261, Saudi Arabia
alsarkhi@kfupm.edu.sa

Mohamed A. Habib

King Fahd University of Petroleum and Minerals, Department of Mechanical Engineering Dhahran 31261, Saudi Arabia
mahabib@kfupm.edu.sa

Hassan Badr

King Fahd University of Petroleum and Minerals, Department of Mechanical Engineering Dhahran 31261, Saudi Arabia
badrhm@kfupm.edu.sa

1Corresponding author.

ASME doi:10.1115/1.4038847 History: Received August 04, 2017; Revised December 02, 2017

Abstract

This paper presents experimental investigations conducted to understand the influence of water-soluble drag-reducing polymers (DRP) in single and two-phase (stratified-wavy) flows on flow field characteristics. These experiments have been presented for water and air-water flowing in a horizontal PVC 22.5-mm I.D., 8.33-m long pipe. The effects of liquid flow rates and DRP concentrations on streamlines, and the instantaneous velocity were investigated by using Particle Image Velocimetry (PIV) technique. A comparison of the PIV results was performed by comparing them with the computational results obtained by FLUENT software. One of the comparisons has been done between the PIV results, where a turbulent flow with DRP was examined, and the Laminar-CFD prediction. An agreement was found in the region near the pipe wall in some cases. The results showed the powerfulness of using the PIV techniques in understanding the mechanism of DRP in single and two-phase flows especially at the regions near the pipe wall and near the phases interface. The results of this study indicates that an increase in DRP concentrations results in an increase in drag reduction up to 45% in single-phase water flow and up to 42% in air-water stratified flow.

Copyright (c) 2017 by ASME
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