Imperial College London
Prof Chris Lawrence

Prof Chris Lawrence

Faculty of Engineering, Department of Chemical Engineering

Visiting Professor
 
 
 
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Contact

 

+44 (0)20 7594 5622c.lawrence Website

 
 
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Assistant

 

Mrs Ann Sewell +44 (0)20 7594 5570

 
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Location

 

C401Roderic Hill BuildingSouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

89 results found

Grof Z, Cook J, Lawrence CJ, Stepanek Fet al., 2009, The interaction between small clusters of cohesive particles and laminar flow: Coupled DEM/CFD approach, JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING, Vol: 66, Pages: 24-32, ISSN: 0920-4105

Journal article

Matar OK, Sisoev GM, Lawrence CJ, 2008, Thin film flow over spinning discs: The effect of surface topography and flow rate modulation, CHEMICAL ENGINEERING SCIENCE, Vol: 63, Pages: 2225-2232, ISSN: 0009-2509

Journal article

Grof Z, Lawrence CJ, Stepanek F, 2008, The strength of liquid bridges in random granular materials, JOURNAL OF COLLOID AND INTERFACE SCIENCE, Vol: 319, Pages: 182-192, ISSN: 0021-9797

Journal article

Suraya AR, Luckham PF, Lawrence CJ, 2008, Shear thinning and frequency dependent behaviour of adsorbed polymer layers Part II.Three layer flow model, Pages: 65-72

A novel hydrodynamic model called the three-layer flow (TLF) model has been developed to enable the quantification of viscoelastic properties of adsorbed polymer layers obtained from nanorheological experiments. By comparing the qualitative experimental data to the TLF Model, four specific parameters could be quantified from the best fit curve; these are the apparent thickness of the adsorbed layer, the real and imaginary components of the layer viscosity, and the apparent solvent viscosity. It was found that the comparison between experimental data and the TLF Model showed excellent agreement for separation distances larger than the overlap region. Furthermore, by comparing the TLF Model with experimental data at different frequencies, an apparent link was found between the complex modulus cross-over point and the adsorbed layer thickness. For adsorbed hydroxypropyl guar (HPG) layers, the cross-over point occurred when the surface separation distance was approximately equal to the thickness of a single adsorbed layer, indicating a relatively viscous nature. Finally, a direct comparison between nanorheological data with standard rheometry measurements also provided some indication of the reliability of the model. (c) 2007 Elsevier B.V. All rights reserved.

Conference paper

Suraya AR, Luckham PF, Lawrence CJ, 2008, Shear thinning and frequency dependent behaviour of adsorbed polymer layers Part I. Experimental aspects and a first order analysis, Conference on Rheometry, Publisher: ELSEVIER SCIENCE BV, Pages: 57-64, ISSN: 0377-0257

Conference paper

Grof Z, Lawrence CJ, Stepanek F, 2008, Computer simulation of evolving capillary bridges in granular media, 5th World Congress on Particle Technology, Publisher: SPRINGER, Pages: 93-103, ISSN: 1434-5021

Conference paper

Valluri P, Spelt PDM, Lawrence CJ, Hewitt GFet al., 2008, Numerical simulation of the onset of slug initiation in laminar horizontal channel flow, International Journal of Multiphase Flow, Vol: 34, Pages: 206-225

Results are presented for the initiation of slug-type structures from stratified 2D, two-layer pressure-driven channel flow. Good agreement is obtained with an Orr–Sommerfeld-type stability analysis for the growth rate and wave speed of very small disturbances. The numerical results elucidate the non-linear evolution of the interface shape once small disturbances have grown substantially. It is shown that relatively short waves (which are the most unstable according to linear theory) saturate when the length of the periodic domain is equally short. In longer domains, coalescence of short waves of small-amplitude is shown to lead to large-amplitude long waves, which subsequently exhibit a tendency towards slug formation. The non-uniform distribution of the interfacial shear stress is shown to be a significant mechanism for wave growth in the non-linear regime.

Journal article

Matar OK, Lawrence CJ, Sisoev GM, 2007, Interfacial dynamics in pressure-driven two-layer laminar channel flow with high viscosity ratios, PHYSICAL REVIEW E, Vol: 75, ISSN: 1539-3755

Journal article

Matar OK, Sisoev GM, Lawrence CJ, 2006, The flow of thin liquid films over spinning discs, CANADIAN JOURNAL OF CHEMICAL ENGINEERING, Vol: 84, Pages: 625-642, ISSN: 0008-4034

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

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

Ujang PM, Lawrence CJ, Hale CP, Hewitt GFet al., 2006, Slug initiation and evolution in two-phase horizontal flow, INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, Vol: 32, Pages: 527-552, ISSN: 0301-9322

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

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

Hu B, Stewart C, Hale CP, Lawrence CJ, Hall ARW, Zwiens H, Hewitt GFet al., 2005, Development of an X-ray computed tomography (CT) system with sparse sources: application to three-phase pipe flow visualization, EXPERIMENTS IN FLUIDS, Vol: 39, Pages: 667-678, ISSN: 0723-4864

Journal article

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

Spelt PDM, Yeow AY, Lawrence CJ, Selerland Tet al., 2005, Creeping flows of Bingham fluids through arrays of aligned cylinders, Journal of Non-Newtonian Fluid Mechanics, Vol: 129, Pages: 66-74, ISSN: 0377-0257

Journal article

Ricard F, Brechtelsbauer C, Xu XY, Lawrence CJet al., 2005, Monitoring of multiphase pharmaceutical processes using electrical resistance tomography, 7th World Congress of Chemical Engineering, Publisher: ELSEVIER, Pages: 794-805, ISSN: 0263-8762

Conference paper

Basterfield RA, Lawrence CJ, Adams MJ, 2005, On the interpretation of orifice extrusion data for viscoplastic materials, CHEMICAL ENGINEERING SCIENCE, Vol: 60, Pages: 2599-2607, ISSN: 0009-2509

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

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

Ricard F, Brechtelsbauer C, Xu Y, Lawrence C, Thompson Det al., 2005, Development of an electrical resistance tomography reactor for pharmaceutical processes, 3rd World Congress in Process Tomography, Publisher: WILEY, Pages: 11-18, ISSN: 0008-4034

Conference paper

Bonne M, Briscoe BJ, Lawrence CJ, Manimaaran S, Parsonage D, Allan Aet al., 2005, Nano-indentation of scratched poly(methyl methacrylate) surfaces, TRIBOLOGY LETTERS, Vol: 18, Pages: 125-133, ISSN: 1023-8883

Journal article

Spelt PDM, Selerland T, Lawrence CJ, Lee PDet al., 2005, Flows of inelastic non-Newtonian fluids through arrays of aligned cylinders. Part 1. Creeping flows, JOURNAL OF ENGINEERING MATHEMATICS, Vol: 51, Pages: 57-80, ISSN: 0022-0833

Journal article

Spelt PDM, Selerland T, Lawrence CJ, Lee PDet al., 2005, Flows of inelastic non-Newtonian fluids through arrays of aligned cylinders. Part 2. Inertial effects for square arrays, JOURNAL OF ENGINEERING MATHEMATICS, Vol: 51, Pages: 81-97, ISSN: 0022-0833

Journal article

Kok PJAH, Kazarian SG, Briscoe BJ, Lawrence CJet al., 2004, Effects of particle size on near-wall depletion in mono-dispersed colloidal suspensions, JOURNAL OF COLLOID AND INTERFACE SCIENCE, Vol: 280, Pages: 511-517, ISSN: 0021-9797

Journal article

Crowdy DG, Lawrence CJ, Wilson SK, 2004, The dynamics of thin liquid films - Preface, JOURNAL OF ENGINEERING MATHEMATICS, Vol: 50, Pages: 95-97, ISSN: 0022-0833

Journal article

Matar OK, Sisoev GM, Lawrence CJ, 2004, Evolution scales for wave regimes in liquid film flow over a spinning disk, PHYSICS OF FLUIDS, Vol: 16, Pages: 1532-1545, ISSN: 1070-6631

Journal article

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