Imperial College London

Professor Berend Van Wachem

Faculty of EngineeringDepartment of Mechanical Engineering

Professor of Multiphase Flow Modelling



+44 (0)20 7594 7030b.van-wachem




622City and Guilds BuildingSouth Kensington Campus






Berend van Wachem obtained his MSc and PhD degree at Delft University of Technology on the modeling of dense gas-solid flows. After spending a number of years as a lecturer in Sweden, he joined the Department of Mechanical Engineering of Imperial College London in 2008.


Berend van Wachem  works on research projects involving multiphase flow modeling, ranging from understanding the behaviour of turbulence on individual particles, to the large-scale modelling of gas-solid and gas-liquid flows. He is one of the editors of the "Best Practice Guidelines for Computational Fluid Dynamics of Dispersed Multiphase Flows", has contributed to the "Multiphase Flow Handbook", and has published a number of review papers on multiphase flow modeling and understanding.

Berend van Wachem on Google Scholar

PhD Positions Available

There are currently PhD-student vacancies in the group for EU or UK nationals. Please contact me for information.


2ME Thermodynamics Course Leader 2009 - current
3ME Thermodynamics and Energy Course Lecturer 2009 - 2010
4ME Computational Fluid Dynamics Course Leader
2009 - current
3ME Design Make and Test projects Supervisor  
4ME Final Year Projects Supervisor  
MSc Research Projects Supervisor  

Selected Publications

Journal Articles

LaMarche CQ, Benavides Moran A, van Wachem B, et al., 2017, Two-fluid modeling of cratering in a particle bed by a subsonic turbulent jet, Powder Technology, Vol:318, ISSN:0032-5910, Pages:68-82

Xiao C-N, Denner F, van Wachem BGM, 2017, Fully-coupled pressure-based finite-volume framework for the simulation of fluid flows at all speeds in complex geometries, Journal of Computational Physics, Vol:346, ISSN:0021-9991, Pages:91-130

Wilson R, Dini D, Van Wachem B, 2017, The influence of surface roughness and adhesion on particle rolling, Powder Technology, Vol:312, ISSN:0032-5910, Pages:321-333

Denner F, Evrard F, Serfaty R, et al., 2017, Artificial viscosity model to mitigate numerical artefacts at fluid interfaces with surface tension, Computers & Fluids, Vol:143, ISSN:0045-7930, Pages:59-72

Charogiannis A, Denner F, van Wachem BGM, et al., 2017, Detailed hydrodynamic characterization of harmonically excited falling-film flows: A combined experimental and computational study, Physical Review Fluids, Vol:2, ISSN:2469-990X

Zhao F, George WK, van Wachem BGM, 2015, Four-way coupled simulations of small particles in turbulent channel flow: The effects of particle shape and Stokes number, Physics of Fluids, Vol:27, ISSN:1070-6631

Denner F, van Wachem BGM, 2015, Numerical time-step restrictions as a result of capillary waves, Journal of Computational Physics, Vol:285, ISSN:0021-9991, Pages:24-40

van Wachem B, Zastawny M, Zhao F, et al., 2015, Modelling of gas-solid turbulent channel flow with non-spherical particles with large Stokes numbers, International Journal of Multiphase Flow, Vol:68, ISSN:0301-9322, Pages:80-92

Denner F, van wachem BGM, 2014, Compressive VOF method with skewness correction to capture sharp interfaces on arbitrary meshes, Journal of Computational Physics, Vol:279, ISSN:0021-9991, Pages:127-144

Denner F, van Wachem BGM, 2014, Fully-Coupled Balanced-Force VOF Framework for Arbitrary Meshes with Least-Squares Curvature Evaluation from Volume Fractions, Numerical Heat Transfer Part B-Fundamentals, Vol:65, ISSN:1040-7790, Pages:218-255

Mallouppas G, George WK, van Wachem BGM, 2013, New forcing scheme to sustain particle-laden homogeneous and isotropic turbulence, Physics of Fluids, Vol:25, ISSN:1070-6631

Zhao F, van Wachem BGM, 2013, A novel Quaternion integration approach for describing the behaviour of non-spherical particles, Acta Mechanica, Vol:224, ISSN:0001-5970, Pages:3091-3109

Zastawny M, Mallouppas G, Zhao F, et al., 2012, Derivation of drag and lift force and torque coefficients for non-spherical particles in flows, International Journal of Multiphase Flow, Vol:39, ISSN:0301-9322, Pages:227-239

Darelius A, Rasmuson A, van Wachem B, et al., 2008, CFD simulation of the high shear mixing process using kinetic theory of granular flow and frictional stress models, Chemical Engineering Science, Vol:63, ISSN:0009-2509, Pages:2188-2197

Benavides A, van Wachem B, 2008, Numerical simulation and validation of dilute turbulent gas-particle flow with inelastic collisions and turbulence modulation, Powder Technology, Vol:182, ISSN:0032-5910, Pages:294-306

More Publications