Abstract
Original language | English |
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Title of host publication | Proceedings of the Ninth International Conference on Systems Engineering |
Publisher | University of Nevada, Las Vegas |
Publication status | Published - 1993 |
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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
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 proceeding › Chapter
}
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 -