Imperial College London
Portrait Picture

Professor Omar K. Matar, FREng

Faculty of Engineering, Department of Chemical Engineering

Head of Department of Chemical Engineering
 
 
 
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Contact

 

+44 (0)20 7594 9618o.matar Website

 
 
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Assistant

 

Mr Avery Kitchens +44 (0)20 7594 6263

 
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Location

 

305 ACEACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

349 results found

Matar OK, Lawrence CJ, 2006, The flow of a thin conducting film over a spinning disc in the presence of an electric field, CHEMICAL ENGINEERING SCIENCE, Vol: 61, Pages: 3838-3849, ISSN: 0009-2509

Journal article

Liu L, Matar OK, Lawrence CJ, Hewitt GFet al., 2006, Laser-induced fluorescence (LIF) studies of liquid-liquid flows. Part I: Flow structures and phase inversion, CHEMICAL ENGINEERING SCIENCE, Vol: 61, Pages: 4007-4021, ISSN: 0009-2509

Journal article

Liu L, Matar OK, Hewitt GF, 2006, Laser-induced fluorescence (LIF) studies of liquid-liquid flows. Part II: Flow pattern transitions at low liquid velocities in downwards flow, CHEMICAL ENGINEERING SCIENCE, Vol: 61, Pages: 4022-4026, ISSN: 0009-2509

Journal article

Zhang YL, Matar OK, Craster RV, 2006, Rupture analysis of the corneal mucus layer of the tear film, Yangtze Conference on Fluids and Interfaces, Publisher: TAYLOR & FRANCIS LTD, Pages: 167-172, ISSN: 0892-7022

Conference paper

Craster RV, Matar OK, 2006, On viscous beads flowing down a vertical fibre, JOURNAL OF FLUID MECHANICS, Vol: 553, Pages: 85-105, ISSN: 0022-1120

Journal article

Hu B, Angeli P, Matar OK, Lawrence CJ, Hewitt GFet al., 2006, Evaluation of drop size distribution from chord length measurements, AICHE JOURNAL, Vol: 52, Pages: 931-939, ISSN: 0001-1541

Journal article

Craster RV, Matar OK, 2006, Numerical simulations of fingering instabilities in surfactant-driven thin films, PHYSICS OF FLUIDS, Vol: 18, ISSN: 1070-6631

Journal article

Matar OK, Lawrence CJ, 2006, The effect of surfactant on the flow of a thin liquid film over a spinning disc, CHEMICAL ENGINEERING SCIENCE, Vol: 61, Pages: 1074-1091, ISSN: 0009-2509

Journal article

Edmonstone BD, Matar OK, Craster RV, 2006, A note on the coating of an inclined plane in the presence of soluble surfactant, JOURNAL OF COLLOID AND INTERFACE SCIENCE, Vol: 293, Pages: 222-229, ISSN: 0021-9797

Journal article

Hu B, Liu L, Matar OK, Angeli P, Hewitt GF, de Ortiz ESPet al., 2006, Investigation of phase inversion of liquid-liquid dispersions in agitated vessels, Tsinghua Science and Technology, Vol: 11, Pages: 202-206, ISSN: 1007-0214

In this paper we report results from on-going theoretical and experimental studies carried out jointly at Imperial College London and University College London. Laser-induced fluorescence (LIF) is used to investigate liquid-liquid phase inversion experimentally and to observe in detail phenomena that accompany the inversion process, such as secondary dispersions and drop coalescence and breakup. Theoretically, a two-region model together with a criterion based on a dynamic balance between drop coalescence and breakup is employed to predict phase inversion. The concept of a radial distribution function for hard spheres was also utilized in order to better model the interaction of drops at high dispersed phase holdup. The modeling work is capable of predicting the existence of ambivalent ranges which are in good agreement with experimental observations.

Journal article

Dussaud AD, Matar OK, Troian SM, 2005, Spreading characteristics of an insoluble surfactant film on a thin liquid layer: comparison between theory and experiment, JOURNAL OF FLUID MECHANICS, Vol: 544, Pages: 23-51, ISSN: 0022-1120

Journal article

Matar OK, Spelt PDM, 2005, Dynamics of thin free films with reaction-driven density and viscosity variations, PHYSICS OF FLUIDS, Vol: 17, ISSN: 1070-6631

Journal article

Edmonstone BD, Matar OK, Craster R, 2005, Surfactant-induced fingering phenomena in thin film flow down an inclined plane, Workshop on Nonlinear Dynamics of Thin Films and Fluid Interfaces, Publisher: ELSEVIER SCIENCE BV, Pages: 62-79, ISSN: 0167-2789

Conference paper

Kandaiah N, Matar OK, Lawrence CJ, Burmester S, Burns Iet al., 2005, Effects of geometry, flow index, and temperature on flow splitting, 2nd International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Publisher: TAYLOR & FRANCIS INC, Pages: 51-57, ISSN: 0145-7632

Conference paper

Edmonstone BD, Matar OK, Craster RV, 2005, Coating of an inclined plane in the presence of insoluble surfactant, JOURNAL OF COLLOID AND INTERFACE SCIENCE, Vol: 287, Pages: 261-272, ISSN: 0021-9797

Journal article

Hu B, Angeli P, Matar OK, Hewitt GFet al., 2005, Prediction of phase inversion in agitated vessels using a two-region model, CHEMICAL ENGINEERING SCIENCE, Vol: 60, Pages: 3487-3495, ISSN: 0009-2509

Journal article

Craster RV, Matar OK, Papageorgiou DT, 2005, On compound liquid threads with large viscosity contrasts, JOURNAL OF FLUID MECHANICS, Vol: 533, Pages: 95-124, ISSN: 0022-1120

Journal article

Matar OK, Gkanis V, Kumar S, 2005, Nonlinear evolution of thin liquid films dewetting near soft elastomeric layers, JOURNAL OF COLLOID AND INTERFACE SCIENCE, Vol: 286, Pages: 319-332, ISSN: 0021-9797

Journal article

Matar OK, Lawrence CJ, Sisoev GM, 2005, The flow of thin liquid films over spinning disks: Hydrodynamics and mass transfer, PHYSICS OF FLUIDS, Vol: 17, ISSN: 1070-6631

Journal article

Matar OK, Sisoev GM, Lawrence CJ, 2005, Evolution scales for wave regimes in liquid film flow over a spinning disk [Phys. Fluids 16, 1532 (2004)], PHYSICS OF FLUIDS, Vol: 17, ISSN: 1070-6631

Journal article

Sisoev GM, Matar OK, Lawrence CJ, 2005, Gas absorption into a wavy film flowing over a spinning disc, CHEMICAL ENGINEERING SCIENCE, Vol: 60, Pages: 2051-2060, ISSN: 0009-2509

Journal article

Valluri P, Matar OK, Hewitt GF, Mendes MAet al., 2005, Thin film flow over structured packings at moderate Reynolds numbers, CHEMICAL ENGINEERING SCIENCE, Vol: 60, Pages: 1965-1975, ISSN: 0009-2509

Journal article

Craster RV, Matar OK, 2005, Electrically induced pattern formation in thin leaky dielectric films, PHYSICS OF FLUIDS, Vol: 17, ISSN: 1070-6631

Journal article

Sisoev GA, Matar OK, Lawrence CJ, 2005, Absorption of gas into a wavy falling film, CHEMICAL ENGINEERING SCIENCE, Vol: 60, Pages: 827-838, ISSN: 0009-2509

Journal article

Liu L, Matar OK, de Ortiz ESP, Hewitt GFet al., 2005, Experimental investigation of phase inversion in a stirred vessel using LIF, CHEMICAL ENGINEERING SCIENCE, Vol: 60, Pages: 85-94, ISSN: 0009-2509

Journal article

Matar OK, Kumar S, Craster RV, 2004, Nonlinear parametrically excited surface waves in surfactant-covered thin liquid films, JOURNAL OF FLUID MECHANICS, Vol: 520, Pages: 243-265, ISSN: 0022-1120

Journal article

Edmonstone BD, Matar OK, Craster RV, 2004, Flow of surfactant-laden thin films down an inclined plane, JOURNAL OF ENGINEERING MATHEMATICS, Vol: 50, Pages: 141-156, ISSN: 0022-0833

Journal article

Afsar-Siddiqui AB, Luckham PF, Matar OK, 2004, Dewetting behavior of aqueous cationic surfactant solutions on liquid films, LANGMUIR, Vol: 20, Pages: 7575-7582, ISSN: 0743-7463

Journal article

Warner MRE, Craster RV, Matar OK, 2004, Fingering phenomena created by a soluble surfactant deposition on a thin liquid film, PHYSICS OF FLUIDS, Vol: 16, Pages: 2933-2951, ISSN: 1070-6631

Journal article

Kumar S, Matar OK, 2004, On the Faraday instability in a surfactant-covered liquid (vol 16, pg 39, 2004), PHYSICS OF FLUIDS, Vol: 16, Pages: 3239-3239, ISSN: 1070-6631

Journal article

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