Near wall turbulence characteristics of a drag reducing polymer fluid flow in concentric annulus using CFD

Azizur Rahaman, Fabio Ernesto Rodriguez Corredor, Majid Bizhani, Ergun Kuru

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A CFD simulation was conducted to analyze the near wall turbulence characteristics of a drag reducing (DR) polymer fluid (0.12% V/V) flow through concentric annulus. The continuity and momentum equations were solved by using a commercial CFD package (CFX 14) with the Shear-Stress-Transport (SST) model option. The simulation results were compared to the experimental data obtained by using high resolution Particle Image Velocimetry (PIV) analyses of drag reducing polymer fluid flow in a horizontal concentric annulus. A fully developed turbulent flow of water through a horizontal flow loop (ID = 9.5 cm) with concentric annular geometry (inner to outer pipe radius ratio = 0.4) was used for comparison purpose. The flow rates ranged from 3.92 to 5.95 kg/s. Drag reducing PHPA solutions behaved as a power law fluid with the rheological model (μ = Kγn-1) for the shear rate of 1/s to 600/s. Bulk and near wall velocity profile obtained from simulation showed good agreements with the experimental data. Drag reducing polymer reduce the Reynolds stresses level due to weaker and fewer turbulent eddies formation near the wall. Results of the simulation study also showed that if the flow rates of power law fluid increased from 3.92 to 5.95 kg/s, the drag reduction in the annuli is increased from 10% to 20% compared to water case indicating the strong damping to turbulent kinetic energy in the flow. The CFD analyses using SST model is computationally inexpensive and, therefore, can be conveniently used for investigating the flow characteristics of drag reducing polymer fluids in concentric annulus.

Original languageEnglish
Title of host publicationFluids Engineering Systems and Technologies
PublisherAmerican Society of Mechanical Engineers (ASME)
Volume7 B
ISBN (Print)9780791856321
DOIs
Publication statusPublished - 2013
Externally publishedYes
EventASME 2013 International Mechanical Engineering Congress and Exposition, IMECE 2013 - San Diego, CA, United States
Duration: 15 Nov 201321 Nov 2013

Other

OtherASME 2013 International Mechanical Engineering Congress and Exposition, IMECE 2013
CountryUnited States
CitySan Diego, CA
Period15/11/1321/11/13

Fingerprint

Drag
Flow of fluids
Computational fluid dynamics
Turbulence
Polymers
Fluids
Shear stress
Flow rate
Flow of water
Drag reduction
Kinetic energy
Velocity measurement
Shear deformation
Turbulent flow
Momentum
Damping
Pipe
Geometry
Water

Keywords

  • Annuli
  • CFD
  • Power law fluid
  • Reynolds stress
  • SST model
  • Turbulent

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Rahaman, A., Corredor, F. E. R., Bizhani, M., & Kuru, E. (2013). Near wall turbulence characteristics of a drag reducing polymer fluid flow in concentric annulus using CFD. In Fluids Engineering Systems and Technologies (Vol. 7 B). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE2013-65268

Near wall turbulence characteristics of a drag reducing polymer fluid flow in concentric annulus using CFD. / Rahaman, Azizur; Corredor, Fabio Ernesto Rodriguez; Bizhani, Majid; Kuru, Ergun.

Fluids Engineering Systems and Technologies. Vol. 7 B American Society of Mechanical Engineers (ASME), 2013.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Rahaman, A, Corredor, FER, Bizhani, M & Kuru, E 2013, Near wall turbulence characteristics of a drag reducing polymer fluid flow in concentric annulus using CFD. in Fluids Engineering Systems and Technologies. vol. 7 B, American Society of Mechanical Engineers (ASME), ASME 2013 International Mechanical Engineering Congress and Exposition, IMECE 2013, San Diego, CA, United States, 15/11/13. https://doi.org/10.1115/IMECE2013-65268
Rahaman A, Corredor FER, Bizhani M, Kuru E. Near wall turbulence characteristics of a drag reducing polymer fluid flow in concentric annulus using CFD. In Fluids Engineering Systems and Technologies. Vol. 7 B. American Society of Mechanical Engineers (ASME). 2013 https://doi.org/10.1115/IMECE2013-65268
Rahaman, Azizur ; Corredor, Fabio Ernesto Rodriguez ; Bizhani, Majid ; Kuru, Ergun. / Near wall turbulence characteristics of a drag reducing polymer fluid flow in concentric annulus using CFD. Fluids Engineering Systems and Technologies. Vol. 7 B American Society of Mechanical Engineers (ASME), 2013.
@inproceedings{18b4e01634e24bff95dcd81b7b9566d3,
title = "Near wall turbulence characteristics of a drag reducing polymer fluid flow in concentric annulus using CFD",
abstract = "A CFD simulation was conducted to analyze the near wall turbulence characteristics of a drag reducing (DR) polymer fluid (0.12{\%} V/V) flow through concentric annulus. The continuity and momentum equations were solved by using a commercial CFD package (CFX 14) with the Shear-Stress-Transport (SST) model option. The simulation results were compared to the experimental data obtained by using high resolution Particle Image Velocimetry (PIV) analyses of drag reducing polymer fluid flow in a horizontal concentric annulus. A fully developed turbulent flow of water through a horizontal flow loop (ID = 9.5 cm) with concentric annular geometry (inner to outer pipe radius ratio = 0.4) was used for comparison purpose. The flow rates ranged from 3.92 to 5.95 kg/s. Drag reducing PHPA solutions behaved as a power law fluid with the rheological model (μ = Kγn-1) for the shear rate of 1/s to 600/s. Bulk and near wall velocity profile obtained from simulation showed good agreements with the experimental data. Drag reducing polymer reduce the Reynolds stresses level due to weaker and fewer turbulent eddies formation near the wall. Results of the simulation study also showed that if the flow rates of power law fluid increased from 3.92 to 5.95 kg/s, the drag reduction in the annuli is increased from 10{\%} to 20{\%} compared to water case indicating the strong damping to turbulent kinetic energy in the flow. The CFD analyses using SST model is computationally inexpensive and, therefore, can be conveniently used for investigating the flow characteristics of drag reducing polymer fluids in concentric annulus.",
keywords = "Annuli, CFD, Power law fluid, Reynolds stress, SST model, Turbulent",
author = "Azizur Rahaman and Corredor, {Fabio Ernesto Rodriguez} and Majid Bizhani and Ergun Kuru",
year = "2013",
doi = "10.1115/IMECE2013-65268",
language = "English",
isbn = "9780791856321",
volume = "7 B",
booktitle = "Fluids Engineering Systems and Technologies",
publisher = "American Society of Mechanical Engineers (ASME)",

}

TY - GEN

T1 - Near wall turbulence characteristics of a drag reducing polymer fluid flow in concentric annulus using CFD

AU - Rahaman, Azizur

AU - Corredor, Fabio Ernesto Rodriguez

AU - Bizhani, Majid

AU - Kuru, Ergun

PY - 2013

Y1 - 2013

N2 - A CFD simulation was conducted to analyze the near wall turbulence characteristics of a drag reducing (DR) polymer fluid (0.12% V/V) flow through concentric annulus. The continuity and momentum equations were solved by using a commercial CFD package (CFX 14) with the Shear-Stress-Transport (SST) model option. The simulation results were compared to the experimental data obtained by using high resolution Particle Image Velocimetry (PIV) analyses of drag reducing polymer fluid flow in a horizontal concentric annulus. A fully developed turbulent flow of water through a horizontal flow loop (ID = 9.5 cm) with concentric annular geometry (inner to outer pipe radius ratio = 0.4) was used for comparison purpose. The flow rates ranged from 3.92 to 5.95 kg/s. Drag reducing PHPA solutions behaved as a power law fluid with the rheological model (μ = Kγn-1) for the shear rate of 1/s to 600/s. Bulk and near wall velocity profile obtained from simulation showed good agreements with the experimental data. Drag reducing polymer reduce the Reynolds stresses level due to weaker and fewer turbulent eddies formation near the wall. Results of the simulation study also showed that if the flow rates of power law fluid increased from 3.92 to 5.95 kg/s, the drag reduction in the annuli is increased from 10% to 20% compared to water case indicating the strong damping to turbulent kinetic energy in the flow. The CFD analyses using SST model is computationally inexpensive and, therefore, can be conveniently used for investigating the flow characteristics of drag reducing polymer fluids in concentric annulus.

AB - A CFD simulation was conducted to analyze the near wall turbulence characteristics of a drag reducing (DR) polymer fluid (0.12% V/V) flow through concentric annulus. The continuity and momentum equations were solved by using a commercial CFD package (CFX 14) with the Shear-Stress-Transport (SST) model option. The simulation results were compared to the experimental data obtained by using high resolution Particle Image Velocimetry (PIV) analyses of drag reducing polymer fluid flow in a horizontal concentric annulus. A fully developed turbulent flow of water through a horizontal flow loop (ID = 9.5 cm) with concentric annular geometry (inner to outer pipe radius ratio = 0.4) was used for comparison purpose. The flow rates ranged from 3.92 to 5.95 kg/s. Drag reducing PHPA solutions behaved as a power law fluid with the rheological model (μ = Kγn-1) for the shear rate of 1/s to 600/s. Bulk and near wall velocity profile obtained from simulation showed good agreements with the experimental data. Drag reducing polymer reduce the Reynolds stresses level due to weaker and fewer turbulent eddies formation near the wall. Results of the simulation study also showed that if the flow rates of power law fluid increased from 3.92 to 5.95 kg/s, the drag reduction in the annuli is increased from 10% to 20% compared to water case indicating the strong damping to turbulent kinetic energy in the flow. The CFD analyses using SST model is computationally inexpensive and, therefore, can be conveniently used for investigating the flow characteristics of drag reducing polymer fluids in concentric annulus.

KW - Annuli

KW - CFD

KW - Power law fluid

KW - Reynolds stress

KW - SST model

KW - Turbulent

UR - http://www.scopus.com/inward/record.url?scp=84903447839&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84903447839&partnerID=8YFLogxK

U2 - 10.1115/IMECE2013-65268

DO - 10.1115/IMECE2013-65268

M3 - Conference contribution

AN - SCOPUS:84903447839

SN - 9780791856321

VL - 7 B

BT - Fluids Engineering Systems and Technologies

PB - American Society of Mechanical Engineers (ASME)

ER -