Flow through catalytic converters - laser Doppler anemometry versus computational fluid dynamics

N.S. Girgis, Stephen F. Benjamin, T.S. Jasper, D.H. Cuttler, M.J. Davies

Research output: Chapter in Book/Report/Conference proceedingChapter

41 Downloads (Pure)

Abstract

Using laser Doppler anemometry (LDA) techniques, the flow velocities have been measured for a sudden pipe expansion into a square duct containing a catalyst situated downstream of the expansion. This geometry has been modelled using the computational fluid dynamics (CFD) code FLOW3D from Harwell. The results of the LDA data have been compared to those predicted by the CFD code. The CFD simulations are close to the experimental data though the CFD results predict more mal-distribution than observed with the LDA technique. Changing the turbulence modelling from the k-epsilon model to the Algebraic Reynolds Stress model improved the predictions significantly, with the magnitude of the recirculation matching the experimental data more closely. It was also found that the solution was not wholly grid independent, though variations were small.
Original languageEnglish
Title of host publicationProceedings of the Ninth International Conference on Systems Engineering
PublisherUniversity of Nevada, Las Vegas
Publication statusPublished - 1993

Fingerprint

Catalytic converters
Computational fluid dynamics
Lasers
Flow velocity
Ducts
Turbulence
Pipe
Catalysts
Geometry
Computer simulation

Bibliographical note

Paper presented at the Ninth International Conference on Systems Engineering (ICSEng 93), University of Nevada, Las Vegas, 14-16 July 1993.

Keywords

  • catalytic converters
  • computational fluid dynamics
  • laser Doppler anemometry

Cite this

Girgis, N. S., Benjamin, S. F., Jasper, T. S., Cuttler, D. H., & Davies, M. J. (1993). Flow through catalytic converters - laser Doppler anemometry versus computational fluid dynamics. In Proceedings of the Ninth International Conference on Systems Engineering University of Nevada, Las Vegas.

Flow through catalytic converters - laser Doppler anemometry versus computational fluid dynamics. / Girgis, N.S.; Benjamin, Stephen F.; Jasper, T.S.; Cuttler, D.H.; Davies, M.J.

Proceedings of the Ninth International Conference on Systems Engineering. University of Nevada, Las Vegas, 1993.

Research output: Chapter in Book/Report/Conference proceedingChapter

Girgis, NS, Benjamin, SF, Jasper, TS, Cuttler, DH & Davies, MJ 1993, Flow through catalytic converters - laser Doppler anemometry versus computational fluid dynamics. in Proceedings of the Ninth International Conference on Systems Engineering. University of Nevada, Las Vegas.
Girgis NS, Benjamin SF, Jasper TS, Cuttler DH, Davies MJ. Flow through catalytic converters - laser Doppler anemometry versus computational fluid dynamics. In Proceedings of the Ninth International Conference on Systems Engineering. University of Nevada, Las Vegas. 1993
Girgis, N.S. ; Benjamin, Stephen F. ; Jasper, T.S. ; Cuttler, D.H. ; Davies, M.J. / Flow through catalytic converters - laser Doppler anemometry versus computational fluid dynamics. Proceedings of the Ninth International Conference on Systems Engineering. University of Nevada, Las Vegas, 1993.
@inbook{96aaa314e7fd458db0069451a3bba9f8,
title = "Flow through catalytic converters - laser Doppler anemometry versus computational fluid dynamics",
abstract = "Using laser Doppler anemometry (LDA) techniques, the flow velocities have been measured for a sudden pipe expansion into a square duct containing a catalyst situated downstream of the expansion. This geometry has been modelled using the computational fluid dynamics (CFD) code FLOW3D from Harwell. The results of the LDA data have been compared to those predicted by the CFD code. The CFD simulations are close to the experimental data though the CFD results predict more mal-distribution than observed with the LDA technique. Changing the turbulence modelling from the k-epsilon model to the Algebraic Reynolds Stress model improved the predictions significantly, with the magnitude of the recirculation matching the experimental data more closely. It was also found that the solution was not wholly grid independent, though variations were small.",
keywords = "catalytic converters, computational fluid dynamics, laser Doppler anemometry",
author = "N.S. Girgis and Benjamin, {Stephen F.} and T.S. Jasper and D.H. Cuttler and M.J. Davies",
note = "Paper presented at the Ninth International Conference on Systems Engineering (ICSEng 93), University of Nevada, Las Vegas, 14-16 July 1993.",
year = "1993",
language = "English",
booktitle = "Proceedings of the Ninth International Conference on Systems Engineering",
publisher = "University of Nevada, Las Vegas",

}

TY - CHAP

T1 - Flow through catalytic converters - laser Doppler anemometry versus computational fluid dynamics

AU - Girgis, N.S.

AU - Benjamin, Stephen F.

AU - Jasper, T.S.

AU - Cuttler, D.H.

AU - Davies, M.J.

N1 - Paper presented at the Ninth International Conference on Systems Engineering (ICSEng 93), University of Nevada, Las Vegas, 14-16 July 1993.

PY - 1993

Y1 - 1993

N2 - Using laser Doppler anemometry (LDA) techniques, the flow velocities have been measured for a sudden pipe expansion into a square duct containing a catalyst situated downstream of the expansion. This geometry has been modelled using the computational fluid dynamics (CFD) code FLOW3D from Harwell. The results of the LDA data have been compared to those predicted by the CFD code. The CFD simulations are close to the experimental data though the CFD results predict more mal-distribution than observed with the LDA technique. Changing the turbulence modelling from the k-epsilon model to the Algebraic Reynolds Stress model improved the predictions significantly, with the magnitude of the recirculation matching the experimental data more closely. It was also found that the solution was not wholly grid independent, though variations were small.

AB - Using laser Doppler anemometry (LDA) techniques, the flow velocities have been measured for a sudden pipe expansion into a square duct containing a catalyst situated downstream of the expansion. This geometry has been modelled using the computational fluid dynamics (CFD) code FLOW3D from Harwell. The results of the LDA data have been compared to those predicted by the CFD code. The CFD simulations are close to the experimental data though the CFD results predict more mal-distribution than observed with the LDA technique. Changing the turbulence modelling from the k-epsilon model to the Algebraic Reynolds Stress model improved the predictions significantly, with the magnitude of the recirculation matching the experimental data more closely. It was also found that the solution was not wholly grid independent, though variations were small.

KW - catalytic converters

KW - computational fluid dynamics

KW - laser Doppler anemometry

M3 - Chapter

BT - Proceedings of the Ninth International Conference on Systems Engineering

PB - University of Nevada, Las Vegas

ER -