A comparative study of manhole hydraulics using stereoscopic PIV and different RANS models

Md Nazmul Azim Beg, Rita F. Carvalho, Simon Tait, Wernher Brevis, Matteo Rubinato, Alma Schellart, Jorge Leandro

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Flows in manholes are complex and may include swirling and recirculation flow with significant turbulence and vorticity. However, how these complex 3D flow patterns could generate different energy losses and so affect flow quantity in the wider sewer network is unknown. In this work, 2D3C stereo Particle Image Velocimetry measurements are made in a surcharged scaled circular manhole. A computational fluid dynamics (CFD) model in OpenFOAM® with four different Reynolds Averaged Navier Stokes (RANS) turbulence model is constructed using a volume of fluid model, to represent flows in this manhole. Velocity profiles and pressure distributions from the models are compared with the experimental data in view of finding the best modelling approach. It was found among four different RANS models that the re-normalisation group (RNG) k-ε and k-ω shear stress transport (SST) gave a better approximation for velocity and pressure.
Original languageEnglish
Pages (from-to)87-98
Number of pages12
JournalWater Science and Technology
Volume2017
Issue number1
Early online date28 Feb 2018
DOIs
Publication statusPublished - 26 Apr 2018
Externally publishedYes

Fingerprint

comparative study
Hydraulics
hydraulics
Sewers
Velocity distribution
Vorticity
Turbulence models
Pressure distribution
Velocity measurement
Flow patterns
turbulence
Shear stress
Dynamic models
Energy dissipation
Computational fluid dynamics
sewer network
Turbulence
velocity profile
computational fluid dynamics
Fluids

Keywords

  • Manhole
  • OpenFOAM(r)
  • RANS model
  • Stereoscopic Particle Image Velocimetry (PIV)
  • Volume Of Fluid (VOF)

Cite this

A comparative study of manhole hydraulics using stereoscopic PIV and different RANS models. / Beg, Md Nazmul Azim; Carvalho, Rita F.; Tait, Simon; Brevis, Wernher; Rubinato, Matteo; Schellart, Alma; Leandro, Jorge.

In: Water Science and Technology, Vol. 2017, No. 1, 26.04.2018, p. 87-98.

Research output: Contribution to journalArticle

Beg, Md Nazmul Azim ; Carvalho, Rita F. ; Tait, Simon ; Brevis, Wernher ; Rubinato, Matteo ; Schellart, Alma ; Leandro, Jorge. / A comparative study of manhole hydraulics using stereoscopic PIV and different RANS models. In: Water Science and Technology. 2018 ; Vol. 2017, No. 1. pp. 87-98.
@article{fda00d17606e4f12afbe6287037dd4c2,
title = "A comparative study of manhole hydraulics using stereoscopic PIV and different RANS models",
abstract = "Flows in manholes are complex and may include swirling and recirculation flow with significant turbulence and vorticity. However, how these complex 3D flow patterns could generate different energy losses and so affect flow quantity in the wider sewer network is unknown. In this work, 2D3C stereo Particle Image Velocimetry measurements are made in a surcharged scaled circular manhole. A computational fluid dynamics (CFD) model in OpenFOAM{\circledR} with four different Reynolds Averaged Navier Stokes (RANS) turbulence model is constructed using a volume of fluid model, to represent flows in this manhole. Velocity profiles and pressure distributions from the models are compared with the experimental data in view of finding the best modelling approach. It was found among four different RANS models that the re-normalisation group (RNG) k-ε and k-ω shear stress transport (SST) gave a better approximation for velocity and pressure.",
keywords = "Manhole, OpenFOAM(r), RANS model, Stereoscopic Particle Image Velocimetry (PIV), Volume Of Fluid (VOF)",
author = "Beg, {Md Nazmul Azim} and Carvalho, {Rita F.} and Simon Tait and Wernher Brevis and Matteo Rubinato and Alma Schellart and Jorge Leandro",
year = "2018",
month = "4",
day = "26",
doi = "10.2166/wst.2018.089",
language = "English",
volume = "2017",
pages = "87--98",
journal = "Water Science and Technology",
issn = "0273-1223",
publisher = "IWA Publishing",
number = "1",

}

TY - JOUR

T1 - A comparative study of manhole hydraulics using stereoscopic PIV and different RANS models

AU - Beg, Md Nazmul Azim

AU - Carvalho, Rita F.

AU - Tait, Simon

AU - Brevis, Wernher

AU - Rubinato, Matteo

AU - Schellart, Alma

AU - Leandro, Jorge

PY - 2018/4/26

Y1 - 2018/4/26

N2 - Flows in manholes are complex and may include swirling and recirculation flow with significant turbulence and vorticity. However, how these complex 3D flow patterns could generate different energy losses and so affect flow quantity in the wider sewer network is unknown. In this work, 2D3C stereo Particle Image Velocimetry measurements are made in a surcharged scaled circular manhole. A computational fluid dynamics (CFD) model in OpenFOAM® with four different Reynolds Averaged Navier Stokes (RANS) turbulence model is constructed using a volume of fluid model, to represent flows in this manhole. Velocity profiles and pressure distributions from the models are compared with the experimental data in view of finding the best modelling approach. It was found among four different RANS models that the re-normalisation group (RNG) k-ε and k-ω shear stress transport (SST) gave a better approximation for velocity and pressure.

AB - Flows in manholes are complex and may include swirling and recirculation flow with significant turbulence and vorticity. However, how these complex 3D flow patterns could generate different energy losses and so affect flow quantity in the wider sewer network is unknown. In this work, 2D3C stereo Particle Image Velocimetry measurements are made in a surcharged scaled circular manhole. A computational fluid dynamics (CFD) model in OpenFOAM® with four different Reynolds Averaged Navier Stokes (RANS) turbulence model is constructed using a volume of fluid model, to represent flows in this manhole. Velocity profiles and pressure distributions from the models are compared with the experimental data in view of finding the best modelling approach. It was found among four different RANS models that the re-normalisation group (RNG) k-ε and k-ω shear stress transport (SST) gave a better approximation for velocity and pressure.

KW - Manhole

KW - OpenFOAM(r)

KW - RANS model

KW - Stereoscopic Particle Image Velocimetry (PIV)

KW - Volume Of Fluid (VOF)

UR - http://www.mendeley.com/research/comparative-study-manhole-hydraulics-using-stereoscopic-piv-different-rans-models

U2 - 10.2166/wst.2018.089

DO - 10.2166/wst.2018.089

M3 - Article

VL - 2017

SP - 87

EP - 98

JO - Water Science and Technology

JF - Water Science and Technology

SN - 0273-1223

IS - 1

ER -