Computational fluid dynamics based on Reynolds averaged Navier–Stokes equations is used to model a turbulent planar buoyant adiabatic wall plume. The plume is generated by directing a helium/air source upwards at the base of the wall. Far from the source, the resulting plume becomes self-similar to a good approximation. Several turbulence models based predominantly on the modeling technique, including algebraic stress modeling, are examined and evaluated against experimental data for the mean mixture fraction, the mixture fraction fluctuations, the mean velocity, and the Reynolds shear stress. Several versions of the model are identified that can predict important flow quantities with reasonable accuracy. Some new results are presented for the variation in a mixing function for the mixture normal to the wall. Finally, the predicted (velocity) lateral spread is as expected smaller for wall flows in comparison to the free flows, but quite importantly, it depends on the wall boundary conditions in agreement with experiments, i.e., it is larger for adiabatic than for hot wall plumes.
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June 2010
Research Papers
Application of the Turbulence Model to Buoyant Adiabatic Wall Plumes
Michael A. Delichatsios,
Michael A. Delichatsios
FireSERT,
University of Ulster
, Shore Road, Bt37 0QB, Northern Ireland
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C. P. Brescianini,
C. P. Brescianini
Fire Science and Technology Laboratory
, Construction and Engineering, CSIRO Building, P.O. Box 310, North Ryde, NSW 1670, Sydney, Australia
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D. Paterson,
D. Paterson
Fire Science and Technology Laboratory
, Construction and Engineering, CSIRO Building, P.O. Box 310, North Ryde, NSW 1670, Sydney, Australia
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H. Y. Wang,
H. Y. Wang
Laboratoire de Combustion et de Détonique, UPR 9028 au CNRS
, ENSMA, Téléport 2, BP 40109, F-86961 Futuroscope Chasseneuil Cedex, France
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J. M. Most
J. M. Most
Laboratoire de Combustion et de Détonique, UPR 9028 au CNRS
, ENSMA, Téléport 2, BP 40109, F-86961 Futuroscope Chasseneuil Cedex, France
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Michael A. Delichatsios
FireSERT,
University of Ulster
, Shore Road, Bt37 0QB, Northern Ireland
C. P. Brescianini
Fire Science and Technology Laboratory
, Construction and Engineering, CSIRO Building, P.O. Box 310, North Ryde, NSW 1670, Sydney, Australia
D. Paterson
Fire Science and Technology Laboratory
, Construction and Engineering, CSIRO Building, P.O. Box 310, North Ryde, NSW 1670, Sydney, Australia
H. Y. Wang
Laboratoire de Combustion et de Détonique, UPR 9028 au CNRS
, ENSMA, Téléport 2, BP 40109, F-86961 Futuroscope Chasseneuil Cedex, France
J. M. Most
Laboratoire de Combustion et de Détonique, UPR 9028 au CNRS
, ENSMA, Téléport 2, BP 40109, F-86961 Futuroscope Chasseneuil Cedex, FranceJ. Fluids Eng. Jun 2010, 132(6): 061202 (5 pages)
Published Online: May 19, 2010
Article history
Received:
July 18, 2009
Revised:
April 20, 2010
Online:
May 19, 2010
Published:
May 19, 2010
Citation
Delichatsios, M. A., Brescianini, C. P., Paterson, D., Wang, H. Y., and Most, J. M. (May 19, 2010). "Application of the Turbulence Model to Buoyant Adiabatic Wall Plumes." ASME. J. Fluids Eng. June 2010; 132(6): 061202. https://doi.org/10.1115/1.4001642
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