Name: Jamel Chahed

 

Title: Professor of Fluid Mechanics and Hydraulics at the National Engineering School of Tunis (ENIT), Adjunct Professor at Tunisia Polytechnic School, Adjunct Professor at Paul Sabatier University, Toulouse, France (UPS), Adjunct professor at Applied Science Institute of Toulouse, France (INSAT)

 

Address: National Engineering School of Tunis, B.P. 37, Le Belvedere 1002, Tunis, Tunisia

Office Telephone: (+216) 71 874 700 Ext. 487

 

Fax: (+216) 71 872 729

 

Email: jamel.chahed@enit.rnu.tn

 

Education: Doc. es. Sciences, Hydraulic Engineering, National Engineering School of Tunis, Tunisia, 1999, Tunisia, 1989; Master of Science, Water and environment, Faculty of Sciences of Tunis, 1986; Bachelor of Science, Hydraulic Engineering, National Engineering School of Tunis, Tunisia, 1981.

Research Interests: Fluid Mechanics, Multiphase flows, Turbulence modeling, hydrodynamic and mass transfer in gas-liquid flows, flotation.


Research Publications:

 

Articles published in international journals

 

  1. Chahed J., Masbernat L, 1998, "Forces interfaciales et turbulence dans les écoulements à bulles", C. R. Acad. Sci., t. 326 Série II b, pp. 635-642

 

  1. Chahed J., Masbernat L. 1998, "Modèle de transport des tensions de Reynolds en écoulements homogènes à bulles", Les Annales Maghrébines de l'Ingénieur Vol 12, pp. 471-477

 

  1. Chahed J., Colin C., Masbernat L., 2002,  "Turbulence and phase distribution in bubbly pipe flow under micro-gravity condition". J. of  Fluids Eng. Vol.124, Issue 4, pp 951-956

 

  1. Chahed J., Roig V., Masbernat L., 2002, "Eulerian -eulerian two-fluid model for turbulent gas-liquid bubbly flows". Int. J. of Multiphase flow. VoL 29/1 pp 23-49

 

  1. Chahed J., Masbernat L., 1998, "Effets des parois sur la distribution de taux de vide dans les écoulements à bulles", C. R. Acad. Sci., t. 326 Série II b, pp. 719-726

 

  1. Bellakhal G., Chahed J., Masbernat L., 2004, "Analysis of the turbulence structure in homogeneous shear bubbly flow using a turbulent viscosity model", Journal of Turbulence  (5) 2004 (036)

 

  1. Ayed H.., Roig V., Chahed J., 2005 (2005), "Analyse expérimentale du transfert de matière et du mélange dans un écoulement cisaillé diphasique à bulles", Récents Progrès en Génie des Procédés, Numéro 92 – 2005, ISBN 2-910239-66-7, Ed. Lavoisier, Paris, France

 

  1. J.Chahed, M.Besbes, A.Hamdene, 2007, "Stress hydrique et sécurité alimentaire, une vision intégrale des ressources en eau" ; La Houille Blanche N° 03-2007

 

  1. Rahmani M. A., Chahed J., Bellakhal Ghazi, Liné A. 2007, "Transfert interfacial et turbulence dans un panache àbulles", Récents Progrès en Génie des Procédés, Numéro 95 – 2007, ISBN 2-910239-69-1, Ed. SFGP, Paris, France

 

  1. Rahmani M. A., Chahed J., Bellakhal Ghazi, Liné A. 2007, "Modelling of gas dispersion in an air-lift reactor", Récents Progrès en Génie des Procédés – Numéro 96 – 2007, ISBN 2-910239-70-5,  Ed. SFGP, Paris, France

 

  1. Chahed J., Bellakhal G., "First and Second Order Turbulence Closure for Bubbly Flows" Int. Review of Mechanical Engineering, 1, 2007

 

  1. Chahed J., Hamdene A., Besbes M., 2007, "A comprehensive water balance of Tunisia: blue water, green water, virtual water"; Water International (under Press).

 

  1. Ayed H., Chahed J., Roig V., 2007, "Experimental analysis and numerical simulation of hydrodynamics and mass transfer in a turbulent buoyant bubbly shear layer" AIChE J. (Under press)

 

Papers presented at international conferences

 

  1. Chahed J., Masbernat L., Roig V., 1998, "Turbulence and void fraction prediction in bubbly wake", Proceeding of the Third Int. Conf. on Multiphase Flow, ICMF'98, Lyon, June 8-12.

 

  1. Chahed J., Masbernat L., 1999, "First and second order turbulence modeling applied to wall bounded bubbly flows" Proceedings of the ASME Pressure Vessels and piping Conference, Boston, August 1-5-1999. ASME technical volume PVP99-387.

 

  1. Chahed J., Masbernat L., Bellakhel G., 1999, "k-epsilon model for bubbly flows", Proceedings of the 2nd Symposium on Two-Phase Flow Modeling and experimentation, Pisa-Italy, 23-26 May, 1999. Vol.2, pp.1035-1041

 

  1. Chahed J., Masbernat L., 1999, "Prédétermination de la Turbulence et du taux de vide dans les écoulements a bulles en présence de paroi", Actes du 14ème Congrès Français de Mécanique, Toulouse, 30 Aout - 3 Septembre.

 

  1. Chahed J., Bellakhel G., 1999, "Fermetures au 1er et au 2ème ordre de la turbulence dans les écoulements diphasiques dispersés : cas des écoulements homogènes à bulles" Proceedings of the 7th Annual Conference of the CFD Society of Canada, Halifax, May 30 to June 1. pp. 7/9-7/14

 

  1. Chahed J., Masbernat L., 1999, "Wall effects on turbulence and interfacial forces in two-phase bubbly flows", Proceedings of the First Int. Symposium On Turbulence and Shear Flow Phenomena, Santa Barbara, September 12-15. S. Editors: S. Banerjee and J. K. Eaton, pp. 849-854

 

  1. Chahed J., Masbernat L., 2000, "Requirements for advanced Computational Fluid Dynamics (CFD) applied to gas-liquid reactors", Proceedings of the International Specialised Symposium on Fundamentals and Engineering Concepts for Ozone Reactor Design". INSA, Toulouse 1-3 Mars, pp. 307-310

 

  1. Chahed J., Masbernat L., 2001, "Prédétermination de la turbulence et du taux de vide dans les écoulements à bulles en présence de paroi", 10ème Journées Internationales de Thermique" La Marsa 17-20 Septembre 2001.

 

  1. Chahed J., Masbernat L., 2001, "Numerical simulations of vertical and horizontal wall bounded turbulent bubbly flows", Proceedings of Fourth Int. Conf. on Multiphase Flow, ICMF'2001, New Orleans, Louisiana, May 27 - June 1.

 

  1. Chahed J, Bellakhel G., Lemassi H. Masbernat L., 2003, "Improvements of pseudo-turbulence modelling in turbulent bubbly flows", The Fifth Euromech Fluid Mechanics Conference Toulouse, Sept., 2003

 

  1. Bellakhel G., Chahed J, Lemassi H. Masbernat L., 2003, "Transferts dans les couches de mélange et les sillages à bulles : rôle de la turbulence et de la pseudo-turbulence", 15ème Congrès Français de Mécanique, Nice, Août, 2003

 

  1. Lemaissi, Bellakhal, J. Chahed, L. Masbernat, 2003, "Mass transfer and turbulent transport in gas-liquid bubbly flows", Fourth Int. Symposium on Turbulence, Heat and Mass Transfer THMT-4, Antalya, Turkey, Oct. 2003

 

  1. Bellakhal G., Chahed J., 2004, "Fermeture au premier et au second ordre de la turbulence dans les écoulements à bulles", Colloque Franco-Tunisien sur les Méthodes Numériques Appliquées aux Ecoulements & aux Transferts, CFT 2004, 23-24 Avril, Monastir, Tunisie.

 

  1. Chahed J., Bellakhal G., Masbernat L., 2004, "Vers une approche diphasique dans la modélisation des systèmes gaz-liquide", Colloque Franco-Tunisien sur les Méthodes Numériques Appliquées aux Ecoulements & aux Transferts, CFT 2004, 23-24 Avril, Monastir, Tunisie

 

  1. Chahed J., Bellakhal G., Masbernat L., 2004, "Turbulence and pseudo-turbulence modeling in low and high void fraction bubbly flows", Fifth Int. Conf. on Multiphase Flow, ICMF'2004, Yokohama, Japan, May 31 - June 3, 2004

 

  1. Bellakhal G., Chahed J.,   Masbernat, L. 2004, "k-Omega turbulence model for bubbly flows", Fifth Int. Conf. on Multiphase Flow, ICMF'2004, Yokohama, Japan, May 31 - June 3, 2004.

 

  1. Ayed H., Roig V., Chahed J., 2005, "Experiments on mass transfer and mixing in a bubbly shear layer", Proceedings of 4st International Conference on Computational Heat and Mass Transfer, May 17–20, 2005, Paris-Cachan, FRANCE Paper number 399.

 

  1. Chahed J., M’Rabet K., 2005, "Gas-liquid mass transfer approach applied to the modeling of flotation in a bubble column", 5th International Symposium on Multiphase Flow, Heat Mass Transfer and Energy Conversion, Xi’an, China, 3-6 July 2005

 

  1. Chahed J., Hamdane A, Besbes M., (2005), "Une vision intégrale du bilan hydrique de la Tunisie : Eau Bleue, Eau Verte, Eau Virtuelle", 6ème Conférence Internationale, European Water Resources Association (EWRA-2005), 7 – 10 September 2005, Menton, France
  2. Jaballi S.,  Chahed J., 2005,   "Transfert de masse à l'interface gaz-liquide", Atelier de Modélisation des Ecosystèmes Marins. 27-28 september 2005, Tunis

 

  1. Megdiche F., Dhari M., Shayeb H., Chahed J., 2006, "Improvement of the energy use efficiency in biological wastewater treatment" SET2006 - 5th International Conference on Sustainable Energy Technologies. Vicenza, Italy, 30 August - 1 Sept. 2006

 

  1. Ayed H., Chahed J., Roig V., 2006, "First and second order modelling of turbulent scalar transport in homogeneous turbulence ", 5th International Symposium on Turbulence Heat and Mass Transfer THMT06, Dubrovnick, Coratie, 25-29 Sept. 2006

 

  1. Ayed H., , Chahed J., Roig V., 2006 “Turbulence and mass transfer in bubbly shear flow  at moderate void fraction”, Third International Conference on Advances in Mechanical Engineering and Mechanics, ICAMEM 06, Hammamet, 17,19 Dec. 2006

 

  1. Jaballi S., Chahed J., 2006, “Gas-liquid mass transfer at the air-water interface”, Third International Conference on Advances in Mechanical Engineering and Mechanics, ICAMEM 06, Hammamet, 17,19 Dec. 2006

 

  1. Besbes M., Chahed J., Hamdene A., 2007, "Bilan intégral des ressources en eau, sécurité hydrique et sécurité alimentaire". Avenir des Eaux Continentales, Académie d'Agriculture du 4-4-2007 Paris