Publication detail
Computational Analysis of Swirling Pipe Flow
DOHNAL, M. HÁJEK, J.
English title
Computational Analysis of Swirling Pipe Flow
Type
conference paper
Language
en
Original abstract
Swirling pipe flow was investigated using advanced scale-k-w SST SAS). The analysis of turbulent swirling fluid motion in pipe focuses mainly on the model prediction capabilities. For validation purposes were used experimental data from (Pashtrapanska et al., 2006). Global instability was produces by a contraction ring placed downstream of swirl generator. Predicted data were sampled at several distances from the swirl generator to compare them with experiment. Repeated simulations were performed on several computational grids involving unstructured and structured meshes. Grid tests revealed strong influence of computational grid on fluid flow behaviour predicted by the model. Most distinguishing feature of the predictions is asymmetry of mean velocity profiles, which is contrary to results obtained from experiment.
English abstract
Swirling pipe flow was investigated using advanced scale-k-w SST SAS). The analysis of turbulent swirling fluid motion in pipe focuses mainly on the model prediction capabilities. For validation purposes were used experimental data from (Pashtrapanska et al., 2006). Global instability was produces by a contraction ring placed downstream of swirl generator. Predicted data were sampled at several distances from the swirl generator to compare them with experiment. Repeated simulations were performed on several computational grids involving unstructured and structured meshes. Grid tests revealed strong influence of computational grid on fluid flow behaviour predicted by the model. Most distinguishing feature of the predictions is asymmetry of mean velocity profiles, which is contrary to results obtained from experiment.
Keywords in English
fired heater; tubular furnace; radiative heat transfer; sensitivity analysis
Released
01.10.2016
Publisher
Aidic Servizi, S.r.l.
Location
Milano, Italy
ISBN
978-88-95608-42-6
ISSN
2283-9216
Book
CHEMICAL ENGINEERING TRANSACTIONS
Volume
52
Pages from–to
757–762
Pages count
6
BIBTEX
@inproceedings{BUT131433,
author="Miloslav {Dohnal} and Jiří {Hájek},
title="Computational Analysis of Swirling Pipe Flow",
booktitle="CHEMICAL ENGINEERING TRANSACTIONS",
year="2016",
volume="52",
month="October",
pages="757--762",
publisher="Aidic Servizi, S.r.l.",
address="Milano, Italy",
isbn="978-88-95608-42-6",
issn="2283-9216"
}