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Alain LINE

Alain LINE
+33 (0)5 61 55 97 86
INSA de Toulouse
135 avenue de Rangueil
31077 Toulouse cedex 4 - FRANCE



Engineer degree, 1981, Hydraulics and Fluid Mechanics, INPT-ENSEEIHT
PhD, 1983, Fluid Mechanics, INPT- IMFT
INPT : National Polytechnic Institute of Toulouse
ENSEEIHT : Engineering School Electronic, Electrotechnic, Informatics and Hydraulics, Toulouse
IMFT : Fluid Mechanics Institute, Toulouse

1985-1989 CNRS Researcher, Multiphase Flow Group at IMFT, Toulouse
1989-1994 INPT Assistant-professor, Fluid Mechanics at ENSEEIHT, Toulouse
since 1994 INSA Professor, Fluid Mechanics in Chemical Engineering Dept
INSA : National Institute of Applied Sciences (Engineer School)
CNRS : National Center for Scientific Research

2002-2006 Director of the laboratory LIPE (Chemical Engineering Laboratory mainly applied to Water Production and Waste-Water Treatment) , Toulouse
2002-2006 Deputy-director of a federation FERMaT (federation of research laboratories in Chemical Engineering and Fluid Mechanics) , Toulouse
2007-2009 Deputy-director of the laboratory LISBP (Chemical and Biochemical Engineering Laboratory) , Toulouse



Multiphase flow in pipeline: stratified, slug, bubbly, annular flows, in collaboration with IFP (Institut Français du Pétrole) and TOTAL, since 1983
Gas-liquid reactor (airlift, bubble columns): experiments and modelling, mainly applied to water production, in collaboration with ONDEO (Suez-Environnement) Drinking Water Virtual PlantTM 1994-2004
Mixing: experiments (PIV) and modelling (URANS, LES), since 1994
Interaction between aeration and membrane fooling, mainly applied to water treatment, in collaboration with VEOLIA
Interaction between hydrodynamics and biofilms, flocs and microorganisms, applied to bioreactors



Transport phenomena, Momentum transfer and turbulence, Multiphase flows
Applied Mathematics, Computational Fluid Dynamics for Chemical Engineering
Co-author of a book on transport phenomena :
JP Couderc, C. Gourdon, A. Liné, Phénomènes de Transfert en Génie des Procédés, Ed Tec&Doc, Lavoisier, 2008 (820 pages).



Multiphase flow in pipeline

J. Fabre, A. Liné, Modeling Two-Phase Slug Flow, Annual Review of Fluid Mechanics, (24), pp 21-46, 1992.
F. Meknassi, R. Benkirane, A. Liné & L. Masbernat, Numerical modeling of wavy stratified two-phase flow in pipes, Chemical Engineering Sciences, 55, pp 4681-4697, 2000.
C. Conan, O. Masbernat, A. Liné & S. Décarre, Local hydrodynamics in dispersed stratified liquid-liquid pipe flow, AIChE Journal , 53(11), pp 2754-2768, 2007.
A. Pouplin, O. Masbernat, A. Liné, S. Décarre, Wall friction and effective viscosity of a homogeneous dispersed liquid-liquid flow in a horizontal pipe, accepted AIChE, 2011

Gas-liquid reactor

A. Cockx, A. Liné, M. Roustan, Z. Doquang et V. Lazarova, Numerical simulation and physical modeling of the hydrodynamics in an air-lift internal loop reactor, Chemical Engineering Sciences., 52(21-22), pp 3787-3793, 1997.
S. Talvy, A. Cockx & A. Liné, Modeling of hydrodynamics of gas-liquid airlift reactor, AIChE Journal, 53(2), pp 335-353, 2007.
S. Talvy, A. Cockx & A. Liné, Modeling of oxygen mass transfer in gas-liquid airlift reactor, AIChE Journal, 53(2), pp 316-326, 2007.
M.A. Rahmani, J. Chahed, G. Bellakhal & A. Liné, An analysis of gas dispersion in an air-lift reactor: the influence of the turbulent part of the added mass force, accepted AIChE, 2011


S. Bugay , R. Escudié & A. Liné , Experimental analysis of hydrodynamics in axially agitated tank using P.I.V. technique, AIChE Journal, 48(3), pp 463-475, 2002.
R. Escudié & A. Liné , Experimental analysis of hydrodynamics in radially agitated tank, AIChE Journal. 49(3) pp 585-603, 2003.
R. Escudié, D. Bouyer & A. Liné, Experimental analysis of trailing vortices in radially agitated tank, AIChE Journal, 50(1), pp 75-86, 2004.
J. Moreau & A. Liné, Proper Orthogonal Decomposition for the study of hydrodynamics in a mixing tank, R&D Note, AIChE Journal, 52(7), pp 2651-2655, 2006.
R. Escudié & A. Liné, A simplified procedure to identify trailing vortices generated by a Rushton turbine, R&D Note, AIChE Journal , 53(2), pp 523-526, 2007.


Interaction between hydrodynamics and biofilms, flocs and microorganisms

D. Bouyer, A. Liné & Z. DoQuang, Experimental analysis of floc size distribution under different hydrodynamics in a mixing tank, AIChE Journal, 50(9), pp 2064-2081 2004.
D. Bouyer, C. Coufort, A. Liné & Z. DoQuang, Experimental analysis of floc size distributionin a 1L jar under different hydrodynamics and physico-chemical conditions, J. Colloid Interface & Sciences, 292-2, pp 413-428, 2005.
J.C. Ochoa, C. Coufort, R. Escudié, E. Paul & A. Liné, Influence of non-uniform distribution of tangential shear stress on aerobic biofilms, Chemical Engineering Sciences, 62(14), 3672-3624, 2007.
S. Talvy, J. Ochoa, E. Paul, A. Liné, Influence of the nature of hydrodynamic constraints on aerobic biofilms, Int. J. Environment and Waste Management, 7(1-2), pp 4-23, 2011.