WALID BLEL

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Publications

Experimental and numerical study of wall phenomena of confined bubble flow in a square channel

Ilia Evdokimenko , Walid Blel , Caroline Gentric , Ivan Vozhakov , Maksim Alekseev et al.

Chemical Engineering Science, 2025, 301, pp.120681. ⟨10.1016/j.ces.2024.120681⟩

Article dans une revue hal-05372550v1

Error correction in correlative measurement methods

Ilia Evdokimenko , Pavel Lobanov , Alexander Chinak , K. Filippskii , E.-K. Si-Ahmed et al.

Journal of Flow Visualization and Image Processing, 2025, 32 (4), pp.51-61. ⟨10.1615/JFlowVisImageProc.2025057328⟩

Article dans une revue hal-05482702v1

Investigation of the Hydrodynamic Structure of a Detached Two-Phase Bubble Flow and the Heat Exchange in a Rectangular Channel with an Obstacle

I. Evdokimenko , P. Lobanov , A. Chinak , K. Filippskii , E.-K. Si-Ahmed et al.

Journal of Engineering Physics and Thermophysics, 2025, 98 (1), pp.173-182. ⟨10.1007/s10891-025-03087-1⟩

Article dans une revue hal-05483312v1
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Investigation of mixing and gas-liquid mass transfer in a thin-gap bubble column photobioreactor with Newtonian or non-Newtonian liquid phase

Abdallah Haydar , Caroline Gentric , Walid Blel

Chemical Engineering Research and Design, 2025, 223 (1), pp.788-796. ⟨10.1016/j.cherd.2025.10.045⟩

Article dans une revue (article de synthèse) hal-05391498v1
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CFD simulation of isolated bubbles rising in Newtonian or non-Newtonian fluids inside a thin-gap bubble column

Sikandar Almani , Walid Blel , Emilie Gadoin , Caroline Gentric

Chemical Engineering Research and Design, 2025, 214, pp.202-218. ⟨10.1016/j.cherd.2024.12.030⟩

Article dans une revue hal-04903897v1

Gas Holdup and Flow Regimes in a Thin‐Gap Bubble Column with Newtonian and Non‐Newtonian Liquid Phase

Abdallah Haydar , Walid Blel , Hélène Marec , Caroline Gentric

Chemical Engineering and Technology, 2023, 46 (6), pp.1218-1227. ⟨10.1002/ceat.202200561⟩

Article dans une revue hal-04701165v1

Global characterization of hydrodynamics and gas-liquid mass transfer in a thin-gap bubble column in presence of Newtonian or non-Newtonian liquid phase

Sikandar Almani , Walid Blel , Emilie Gadoin , Caroline Gentric

Chemical Engineering Science, 2023, 282, pp.119291. ⟨10.1016/j.ces.2023.119291⟩

Article dans une revue hal-04807428v1
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Anaerobic co-digestion of linen, sugar beet pulp, and wheat straw with cow manure: effects of mixing ratio and transient change of co-substrate

Mahmoud Elsayed , Yves Andres , Walid Blel

Biomass Conversion and Biorefinery, 2023, 13 (13), pp.11831 - 11840. ⟨10.1007/s13399-021-02229-8⟩

Article dans une revue hal-04223216v1
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Different types of bubbly flows in a confined channel with the aim of limiting microalgae biofilm development – Part II: study of the development and removal of microalgae biofilm

Charlène Thobie , Walid Blel , Catherine Dupré , Hélène Marec , Jérémy Pruvost et al.

Chemical Engineering and Processing: Process Intensification, 2022, 173 (4), pp.108844. ⟨10.1016/j.cep.2022.108899⟩

Article dans une revue hal-03973289v1

Modeling of sludge and flax anaerobic co-digestion based on combination of first order and modified Gompertz models: influence of C/N ratio and headspace gas volume

Mahmoud Elsayed , Yves Andres , Walid Blel

Desalination and Water Treatment, 2022, 250, pp.136-147. ⟨10.5004/dwt.2022.28153⟩

Article dans une revue hal-04222646v1

Different types of bubbly flows in a confined channel with the aim of limiting microalgae biofilm development - Part I: Hydrodynamic study

Charlène Thobie , Walid Blel , Jean-Luc Hauser , Jérémy Pruvost , Caroline Gentric

Chemical Engineering and Processing: Process Intensification, 2022, 173, pp.108844. ⟨10.1016/j.cep.2022.108844⟩

Article dans une revue hal-04752508v1
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Anaerobic co-digestion of dairy raw by-products and Ulva sp. macroalgae: effect of organic and inorganic additives

Selsabila Zara , Rachida Rihani , Walid Blel , Fatiha Bentahar

Comptes Rendus. Chimie, 2021, 24 (S1), pp.23 - 37. ⟨10.5802/crchim.74⟩

Article dans une revue hal-04229691v1
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Production of oil in water emulsions in microchannels at high throughput: Evaluation of emulsions in view of cosmetic, nutraceutical or pharmaceutical applications

Ralph Nehme , Walid Blel , Agnès Montillet , Jérôme Bellettre , Luc Marchal

Chemical Engineering and Processing: Process Intensification, 2021, 161, pp.108301. ⟨10.1016/j.cep.2021.108301⟩

Article dans une revue hal-03148346v1
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Investigation of single bubbles rising in Newtonian and non-Newtonian fluids inside a thin-gap bubble column intended for microalgae cultivation

Sikandar Almani , Walid Blel , Emilie Gadoin , Caroline Gentric

Chemical Engineering Research and Design, 2021, 167, pp.218-230. ⟨10.1016/j.cherd.2021.01.010⟩

Article dans une revue hal-04225123v1

Semi-continuous co-digestion of sludge, fallen leaves, and grass performance

Mahmoud Elsayed , Walid Blel , Mohamed Soliman , Yves Andres , Raouf Hassan

Energy, 2021, 221, pp.119888. ⟨10.1016/j.energy.2021.119888⟩

Article dans une revue hal-04223598v1

Effect of inoculum VS, organic loads and I/S on the biochemical methane potential of sludge, buckwheat husk and straw

Mahmoud Elsayed , Yves Andres , W. Blel , Raouf Hassan , Abdelkader Ahmed

Desalination and Water Treatment, 2019, 157, pp.69-78. ⟨10.5004/dwt.2019.24121⟩

Article dans une revue hal-02334174v1
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Global characterization of hydrodynamics and gas-liquid mass transfer in a thin-gap bubble column intended for microalgae cultivation

Charlène Thobie , Emilie Gadoin , W. Blel , Jeremy Pruvost , Caroline Gentric

Chemical Engineering and Processing: Process Intensification, 2017, 122, pp.76-89. ⟨10.1016/j.cep.2017.10.009⟩

Article dans une revue hal-01923361v1
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Study of the antimicrobial and antifouling properties of different oxide surfaces

W. Blel , L. Limousy , P. Dutournié , A. Ponche , A. Boucher et al.

Environmental Science and Pollution Research, 2017, 24 (11), pp.9847-9858. ⟨10.1007/s11356-016-7762-2⟩

Article dans une revue hal-01924248v1

Effect of VS organic loads and buckwheat husk on methane production by anaerobic co-digestion of primary sludge and wheat straw

Mahmoud Elsayed , Yves Andres , Walid Blel , Ali Gad , Abdelkader Ahmed

Energy Conversion and Management, 2016, 117, pp.538-547. ⟨10.1016/j.enconman.2016.03.064⟩

Article dans une revue istex hal-01345973v1
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Methane Production By Anaerobic Co-Digestion Of Sewage Sludge And Wheat Straw Under Mesophilic Conditions

M Elsayed , Yves Andres , W Blel , A Gad

International Journal of Scientific Research & Engineering Technology (IJSET), 2015, 4 (6)

Article dans une revue hal-01345980v1
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Regeneration of Lyes for Cleaning-In-Place (CIP) Processes in Dairies: Comparison of Recycled Potash and Soda Solutions Cleaning Properties

Marie Furic , Anne Elain , W. Blel , Olivier Sire

American Journal of Applied Sciences, 2015, 12 (5), pp.329 - 334. ⟨10.3844/ajassp.2015.329.334⟩

Article dans une revue hal-01924285v1

Stabilisation of the water permeability of mineral ultrafiltration membranes: An empirical modelling of surface and pore hydration

Jacques Bikai , Lionel Limousy , Patrick Dutournié , Ludovic Josien , W. Blel

Comptes Rendus. Chimie, 2015, 18 (1), pp.56 - 62. ⟨10.1016/j.crci.2014.09.004⟩

Article dans une revue hal-01924289v1

Effect of a new regeneration process by adsorption-coagulation and flocculation on the physicochemical properties and the detergent efficiency of regenerated cleaning solutions

W. Blel , Mehdi Dif , Olivier Sire

Journal of Environmental Management, 2015, 155, pp.1 - 10. ⟨10.1016/j.jenvman.2015.03.011⟩

Article dans une revue istex hal-01924287v1

Understanding of Ion Transport in a Na–Mordenite Membrane: Use of Numerical Modeling To Estimate Surface–Solute Interactions in the Pore

Patrick Dutournié , Lionel Limousy , W. Blel , Sébastien Déon , Patrick Fievet

Industrial and engineering chemistry research, 2014, 53 (19), pp.8221 - 8227. ⟨10.1021/ie5007933⟩

Article dans une revue hal-01924303v1

Role of mechanical vs. chemical action in the removal of adherent Bacillus spores during CIP procedures

C. Faille , T. Bénézech , W. Blel , A. Ronse , G. Ronse et al.

Food Microbiology, 2013, 33 (2), pp.149 - 157. ⟨10.1016/j.fm.2012.09.010⟩

Article dans une revue istex hal-01924315v1

Identification of transfer mechanisms involved in soiled CIP solutions regeneration at extreme pH and high temperature

Mehdi Dif , W. Blel , Gilles Tastayre , Thomas Lendormi , Olivier Sire

Journal of Food Engineering, 2013, 114 (4), pp.477 - 485. ⟨10.1016/j.jfoodeng.2012.08.036⟩

Article dans une revue istex hal-01924318v1

Cleanabilty study of a Scraped Surface Heat Exchanger

W. Blel , Patrick Legentilhomme , Thierry Bénézech , Francine Fayolle

Food and Bioproducts Processing, 2013, 91 (2), pp.95 - 102. ⟨10.1016/j.fbp.2012.10.002⟩

Article dans une revue istex hal-01924316v1
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New Physico-Chemical Regeneration Process of CIP Solutions

Mehdi Dif , W. Blel , Oliver Sire

Chemical Engineering Transactions, 2012, ⟨10.3303/CET1229139⟩

Article dans une revue hal-01924332v1

Cleanability study of complex geometries: Interaction between B. cereus spores and the different flow eddies scales

W. Blel , P. Legentilhomme , C. Le Gentil-Lelièvre , C. Faille , J. Legrand et al.

Biochemical Engineering Journal, 2010, 49 (1), pp.40 - 51. ⟨10.1016/j.bej.2009.11.009⟩

Article dans une revue istex hal-01924307v1

Cleanability study of complex geometries: interaction between B. cereus spores and the different flow eddies scales.

W. Blel , P. Legentilhomme , T. Bénézech , C. Faille , J. Legrand et al.

Biochemical Engineering Journal, 2010, 49, pp.40-51

Article dans une revue hal-00493889v1
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Application of turbulent pulsating flows to the bacterial removal during a cleaning in place procedure. Part 1: Experimental analysis of wall shear stress in a cylindrical pipe

Walid Blel , Caroline Le Gentil-Lelièvre , Thierry Bénézech , Jack Legrand , Patrick Legentilhomme

Journal of Food Engineering, 2009, 90 (4), pp.422-432. ⟨10.1016/j.jfoodeng.2008.07.008⟩

Article dans une revue hal-00400254v2

Numerical and experimental investigations of the flow structures through a gradual expansion pipe

Walid Blel , P. Legentilhomme , J. Legrand , D. Pierrat , C. Hermon et al.

Trends in Food Science and Technology, 2009, 20, pp.70-76

Article dans une revue hal-00401933v1

Numerical and experimental investigations of the flow structures through a gradual expansion pipe

W. Blel , D. Pierrat , C. Le Gentil , P. Legentilhomme , J. Legrand et al.

Trends in Food Science and Technology, 2009, 20, pp.S70 - S76. ⟨10.1016/j.tifs.2009.01.043⟩

Article dans une revue istex hal-01924311v1
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Application of turbulent pulsating flows to the bacterial removal during a cleaning in place procedure. Part 2 Effects on cleaning efficiency

Walid Blel , Patrick Legentilhomme , Thierry Bénézech , Jack Legrand , Caroline Le Gentil-Lelièvre

Journal of Food Engineering, 2009, 90 (4), pp.433-440. ⟨10.1016/j.jfoodeng.2008.07.019⟩

Article dans une revue hal-00400256v1

Influence des contraintes de cisaillement sur la nettoyabilité des équipements

W. Blel , Thierry Bénézech , P. Legentilhomme , J. Legrand , Caroline Le Gentil

Salles Propres, 2008, 53, pp.33-40

Article dans une revue hal-02653518v1

Hygienic design: effect of hydrodynamics on the cleanability of a food processing line

Walid Blel , P. Legentilhomme , T. Benezech , J. Legrand , C. Le Gentil-Lelièvre

AlChE J., 2008, 54, pp.2553-2566

Article dans une revue hal-00400250v1
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Hygienic Design: Effect of Hydrodynamics on the Cleanability of a Food Processing Line

Walid Blel , Patrick Legentilhomme , Jack Legrand , Thierry Bénézech , Caroline Le Gentil-Lelièvre

AIChE Journal, 2008, 54 (10), pp.2553-2566. ⟨10.1002/aic.11559⟩

Article dans une revue hal-01924298v1

Effect of flow arrangement on the removal of Bacillus spores from stainless steel equipment surfaces during a Cleaning In Place procedure

W. Blel , Thierry Bénézech , Patrick Legentilhomme , Jack Legrand , Caroline Le Gentil-Lelièvre

Chemical Engineering Science, 2007, 62 (14), pp.3798 - 3808. ⟨10.1016/j.ces.2007.04.011⟩

Article dans une revue istex hal-01924305v1

Effect of flow arrangement on the removal of Bacillus spores from stainless steel equipment surfaces during a Cleaning In Place procedure

Walid Blel , T. Bénézech , P. Legentilhomme , J. Legrand , C. Le Gentil-Lelièvre

Chemical Engineering Science, 2007, 62, pp.3798-3808

Article dans une revue hal-00400248v1
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Traitement des digestats de méthanisation pour recycler les nutriments par des microalgues

Pascale Gillon , W. Blel , Nour-Eddine Sabiri , Catherine Dupré , Elisabeth A. Cazier et al.

2ème Congrès Interdisciplinaire sur l’Economie Circulaire (CIEC 2025), Université de Picardie Jules Verne, Jun 2025, Amiens, France

Communication dans un congrès hal-05206999v1

Thin gap bubble column with a non-Newtonian liquid phase: study of the hydrodynamics and gas-liquid mass transfer

Sikandar Almani , Abdallah Haydar , W. Blel , Emilie Gadoin , Caroline Gentric

The 12th EUROPEAN CONGRESS OF CHEMICAL ENGINEERING, Sep 2019, Florence, Italy

Communication dans un congrès hal-02344626v1

Experimental and numerical study of the hydrodynamics of an isolated bubble in non-Newtonian liquid phase in a thin gap bubble column

Sikandar Almani , W. Blel , Emilie Gadoin , Caroline Gentric

17ème Congrès de la Société Française de Génie des Procédés SFGP 2019, Oct 2019, Nantes, France

Communication dans un congrès hal-02344637v1

PRIAM : Technologie de rupture pour une production contrôlée et intensifiée de microalgues. Etude de l'hydrodynamique en vue d'éviter le développement de biofilm dans de tels systèmes intensifiés

Charlène Thobie , Laure Peruchon , Cédric Brochier , Jeremy Pruvost , Caroline Gentric et al.

17ème Congrès de la Société Française de Génie des Procédés SFGP 2019, Oct 2019, NANTES, France

Communication dans un congrès hal-02344658v1

Optimization of the hydrodynamics in a high volumetric productivity photobioreactor

Charlène Thobie , W. Blel , Jeremy Pruvost , Caroline Gentric

oceanext, Jul 2019, Nantes, France

Communication dans un congrès hal-02344572v1

HVP-photobioreactor for intensified microalgal culture: influence of low culture thickness and high biomass concentration on hydrodynamics, gas-liquid mass transfer and biofilm development

Jeremy Pruvost , Charlène Thobie , Walid Blel , Caroline Gentric , Jack Legrand

Joint Agrospace – Melissa Workshop, ESA, May 2018, Rome, Italy

Communication dans un congrès hal-02552548v1
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Optimisation de l'hydrodynamique dans des photobioréacteurs a haute productivité volumique pour éviter le développement de biofilm

Charlène Thobie , W. Blel , Jeremy Pruvost , Caroline Gentric

16ème Congrès de la Société Française de Génie des Procédés SFGP 2017, Jul 2017, Nancy, France

Communication dans un congrès hal-02344578v1
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Study of the global hydrodynamics and gas- liquid transfer in a thin-gap bubble column

Charlène Thobie , W. Blel , Emilie Gadoin , Pattarmadathil Joseph , Jeremy Pruvost et al.

13th International Conference on Gas–Liquid and Gas–Liquid–Solid Reactor Engineering (GLS-13), Aug 2017, Bruxelles, Belgium

Communication dans un congrès hal-02344604v1

Simulation de l'hydrodynamique et du transfert (O2 et CO2) en photobioréacteur plan de type airlift

Thibaut Daniel , Mbalo Ndiaye , Emilie Gadoin , Caroline Gentric , W. Blel et al.

16ème Congrès de la Société Française de Génie des Procédés, Jul 2017, Nancy, France

Communication dans un congrès hal-02567405v1

Optimization of biogas and methane production by anaerobic co-digestion of sewage sludge and wheat straw under mesophilic condition : effect of C/N ratio and volatile solids organic loads

M Elsayed , Yves Andres , W. Blel , A. Gad , A T Ahmed

6th International Conference on Engineering for Waste and Biomass Valorisation, May 2016, Albi, France

Communication dans un congrès hal-02344527v1

Comparison of thermochemical and biochemical approaches to produce energy vectors from buckwheat

Mahmoud Elsayed , K.S. Goh , Audrey Villot , Claire Gerente , W Blel et al.

6th International Conference on Engineering for Waste and Biomass Valorisation (WasteEng16), May 2016, Albi, France

Communication dans un congrès hal-01379381v1

RECYCLED SOILED CIP SOLUTIONS FOR MEMBRANES CLEANING: APPLICATION TO UF OF WHEY PROTEINS

Marie Furic , Anne Elain , W. Blel , Olivier Sire

ECCE10 (10th European Congress of Chemical Engineering), Sep 2015, Nice, France

Communication dans un congrès hal-02344502v1

Caractérisation de la nettoyabilité des échangeurs de chaleur à la surface raclée

W. Blel , T. Bénézech , P. Legentilhomme , F. Fayolle

Congrès SFGP, Oct 2009, Marseille, France

Communication dans un congrès hal-00600492v1

Influence of hydrodynamics on bacterial transport and adhesion to inert surfaces in a food processing line

C. Le Gentil-Lelièvre , Walid Blel , J. Legrand , T. Bénézech , P. Legentilhomme

International Congress of Engineering and Food, Apr 2008, Vina del Mar, Chile

Communication dans un congrès hal-00401960v1

Cleaning in place procedures in food processing line: feasibility study of pulsed flow implementation

Walid Blel , P. Legentilhomme , J. Legrand , T. Bénézech , C. Le Gentil-Lelièvre

Food Factory, Jun 2008, Laval, France

Communication dans un congrès hal-00401965v1

Hygiene of complex food equipment – Biofilm resistance to cleaning in place conditions

T. Bénézech , F. Fayolle , Walid Blel , Y. Lequette , Y. Sylla et al.

Food Factory, Jun 2008, Laval, France

Communication dans un congrès hal-00401971v1

Rôle d'un écoulement pulsé dans l'augmentation des transferts de masse à la paroi : application au Nettoyage En Place d'une installation agroalimentaire

W. Blel , P. Legentilhomme , J. Legrand , T. Bénézech , C. Le Gentil-Lelièvre

Congrès SFGP Saint-Etienne, Oct 2007, Saint-Etienne, France

Communication dans un congrès hal-00497055v1

Rôle d'un écoulement pulsé dans l'augmentation des transferts de masse à la paroi : application au Nettoyage En Place d'une installation agroalimentaire

Walid Blel , P. Legentilhomme , J. Legrand , T. Bénézech , C. Le Gentil-Lelièvre

Congrès SFGP, Oct 2007, Saint Etienne, France

Communication dans un congrès hal-00400267v1

Influence of wall shear stress variations on microbial removal along different pipe arrangements during cleaning-in-place. Fouling, Cleaning & Disinfection in Food Processing

W. Blel , T. Bénézech , P. Legentilhomme , J. Legrand , C. Le Gentil-Lelièvre

Jesus College Cambridge, Mar 2006, United Kingdom

Communication dans un congrès hal-00496709v1

Food process equipment : Influence of microbial soils and flow conditions on cleanability

C. Le Gentil-Lelièvre , W. Blel , P. Legentilhomme , T. Bénézech

13th world congress of food science and technology FOOD IS LIFE, Sep 2006, Nantes, France

Communication dans un congrès hal-00496739v1

Hygienic design: effect of hydrodynamics on the cleanability of complex equipment in dairy industry

Walid Blel , Caroline Le Gentil-Lelièvre , Thierry Bénézech , Jack Legrand , Patrick Legentilhomme

Food Factory of the Future 3, Jun 2006, Gothenburg, Sweden

Communication dans un congrès hal-00496713v1

Rôle de la géométrie dans la contamination et le nettoyage d'un arrangement d'équipements en acier inoxydable

W. Blel , C. Le Gentil-Lelièvre , T. Bénézech , J. Legrand , P. Legentilhomme

Colloque PROSETIA, Mar 2006, Paris, France

Communication dans un congrès hal-00496701v1

Influence of wall shear stress variations on microbial removal along different pipe arrangements during cleaning-in-place

Walid Blel , T. Bénézech , P. Legentilhomme , J. Legrand , C. Le Gentil-Lelièvre

Fouling, Cleaning & Disinfection in Food Processing 2006, Mar 2006, Cambridge, United States

Communication dans un congrès hal-00401949v1

Influence de l'hydrodynamique sur l'arrachement bactérien : expérimentation et simulation numérique

C. Le Gentil-Lelièvre , Walid Blel , P. Legentilhomme , J. Legrand , T. Bénézech et al.

Colloque PROSETIA, Mar 2005, Villeneuve d'Ascq, France

Communication dans un congrès hal-00400264v1

Amélioration du transfert de chaleur dans les surgélateurs à air pulsé par implantation d'un système de fenêtres rectangulaires

Walid Blel , J.L. Lanoisellé

Congrès SFGP Toulouse, Sep 2005, Toulouse, France

Communication dans un congrès hal-00400262v1