The paper presents a three-dimensional numerical simulation of a circular turbulent jet issuing transversely into a uniform air stream. In the first part an air-helium jet is considered and the three-dimensional structure of the flow field is discussed. Then, a comparison between the numerical results of four turbulence closure models (three first-order models and a second-order one) are presented and compared with the experimental data given by Crabb et al. [7] and Andreopoulos et al. [9]. Although the different models render identical results in the upstream and far downstream regions of the jet, only the second order model is shown to give good results in the exit region and in the trailing zone of the jet. Based on this last model, the dynamic and scalar fields of a fume turbulent jet issuing transversely with velocity into a uniform air flow with velocity are then examined as functions of the ratio in order to simulate pollutant dispersion from industrial chimneys.
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Three-Dimensional Numerical Calculations of a Jet in an External Cross Flow: Application to Pollutant Dispersion
Nejla Mahjoub Said,
e-mail: Nejla.Mahjoub@fsm.rnu.tn
Nejla Mahjoub Said
Laboratoire de Me´canique des fluides et thermique, Ecole Nationale d’Inge´nieurs de Monastir, route de Ouardanine 5020, Monastir, Tunisie
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Hatem Mhiri,
Hatem Mhiri
Laboratoire de Me´canique des fluides et thermique, Ecole Nationale d’Inge´nieurs de Monastir, route de Ouardanine 5020, Monastir, Tunisie
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Salem El Golli,
Salem El Golli
Laboratoire de Me´canique des fluides et thermique, Ecole Nationale d’Inge´nieurs de Monastir, route de Ouardanine 5020, Monastir, Tunisie
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Georges Le Palec,
e-mail: Lepalec@unimeca.univ-mrs.fr
Georges Le Palec
Unimeca, 60 rue Joliot-Curie, Technopo^le de Cha^teau-Gombert, 13453 Marseille Cedex 13, France
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Philippe Bournot
Philippe Bournot
Unimeca, 60 rue Joliot-Curie, Technopo^le de Cha^teau-Gombert, 13453 Marseille Cedex 13, France
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Nejla Mahjoub Said
Laboratoire de Me´canique des fluides et thermique, Ecole Nationale d’Inge´nieurs de Monastir, route de Ouardanine 5020, Monastir, Tunisie
e-mail: Nejla.Mahjoub@fsm.rnu.tn
Hatem Mhiri
Laboratoire de Me´canique des fluides et thermique, Ecole Nationale d’Inge´nieurs de Monastir, route de Ouardanine 5020, Monastir, Tunisie
Salem El Golli
Laboratoire de Me´canique des fluides et thermique, Ecole Nationale d’Inge´nieurs de Monastir, route de Ouardanine 5020, Monastir, Tunisie
Georges Le Palec
Unimeca, 60 rue Joliot-Curie, Technopo^le de Cha^teau-Gombert, 13453 Marseille Cedex 13, France
e-mail: Lepalec@unimeca.univ-mrs.fr
Philippe Bournot
Unimeca, 60 rue Joliot-Curie, Technopo^le de Cha^teau-Gombert, 13453 Marseille Cedex 13, France
Contributed by the Heat Transfer Division for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received by the Heat Transfer Division April 24, 2002; revision received November 6, 2002. Associate Editor: A. F. Emery.
J. Heat Transfer. Jun 2003, 125(3): 510-522 (13 pages)
Published Online: May 20, 2003
Article history
Received:
April 24, 2002
Revised:
November 6, 2002
Online:
May 20, 2003
Citation
Mahjoub Said, N., Mhiri , H., El Golli, S., Le Palec, G., and Bournot, P. (May 20, 2003). "Three-Dimensional Numerical Calculations of a Jet in an External Cross Flow: Application to Pollutant Dispersion ." ASME. J. Heat Transfer. June 2003; 125(3): 510–522. https://doi.org/10.1115/1.1560158
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