2020-2021

External member of PhD qualifier of ‘Aastha Aastha’, on Developing a closed loop thermochemical storage system’
Examined Master thesis Denis Kattier on ‘Effect of Oscillating Gas Flow on Fluidisation Behaviour of ultra fine Particles (Geldart A and C)’
Examined Master thesis of Hans van den Broek on ‘On quasi-simultaneous viscous-inviscid interaction’.
Examined PhD thesis of Ivan Mema on ‘Spheres vs. Robs in fluidized beds: Numerical and experimental investigations’, University of Delft.
Examined PhD thesis of Zvonimir Maranic on ‘Granular Thermometry’, University of Sydney, Australia.
External member of PhD qualifier of ‘Bart Ettema’ on Modelling and Processing for Laser Implantation Surface Texturing (LITex).

2019-2020

External member of PhD qualifier of ‘Timo Plath’ on ‘ViPr: Virtual prototyping of particulate processes – Heterogeneous multiscale modeling & rapid prototyping of twin-screw wet granulation processes’.
Examined Master thesis of Cor Lerink on ‘Visualisation of Fouling during Oil-in-Water Filtration using Tubular Ceramic Membranes’.
Examined Master thesis of Robin Visser on ‘Modelling of Plasticity in Pipelaying Simulations using an Artificial Neural Network’.
Co-supervised two projects (six students) for Mechanical Engineering BSc Introduction to Technological research project.
Examined PhD thesis of Mahening Citra Vidya on ‘Modeling and adjoint optimization of heat exchanger geometries’, University of Twente.
External member of PhD qualifier of ‘Juan Alvarez’ on ‘Multiscale simulation of particulate processes – Selective laser sintering’.
Daily supervisor, promotor and member of the committee of a PhD student, Irana Denissen, on a project entitled ‘On segregation in bidisperse granular flows’.
Examined master thesis of Mechanical Engineering of Joris van Dijk on ‘Fluid dynamics of ship propulsion’.
Supervised and examined mechanical engineering masters project of Marc Hofstede, ‘Axial segregation of size bidisperse granular mixture in axially inhomogeneous drums’.
Supervised and examined mechanical engineering masters project of Sven van der Werf, ‘Macroscopic single contact properties of cohesive silanized glass beads’.

2018-2019

Nominated for the STOOT (Scheikundig Technologische Onmeunige Onderwijs Taart) teaching award.
Examined PhD thesis of Vinay Mahajan on ‘Elongated particles in fluidized beds. From lab-scale experiments to constitutive models’, University of Delft.
Daily supervisor, promotor and member of the committee of a PhD student, Marnix van Schrojenstein Lantman, on a project entitled ‘A study on fundermental segregating mechanisms in dense granular flows’.
Examined PhD thesis of Segolene Mejean on ‘Jumps in granular flows down inclines’, University of Sydney and University of Grenoble.
Examined PhD thesis of Tjitse Slange on ‘Rapid manufacturing of tailored thermoplastic composites by automated lay-up and stamp forming’, University of Twente.
Supervised and examined mechanical engineering masters project of Harmen Polman, ‘A code for refractive index matched scanning data processing’.
Examined master thesis of Nanotechnology of Xiao Zhu on’Nucleation kinetics of clathrin in small-scale non-equilibrium system’.
Supervised and examined mechanical engineering masters project of Mitchel Post on ‘Effect of size ratio in single large intruder particles in horizontally rotating drums’.
External member of PhD qualifier of Edmond Shehadi on ‘LES of compressible turbulent flow through combustor line and dilution holes’.
Examined PhD thesis of Prashidha Kharel on ‘Internal Dynamics and Flow Properties of Dense Granular Materials’, University of Sydney.
Co-supervised three projects (six students) for Mechanical Engineering BSc Introduction to Technological research project.

2017-2018

External member of PDEng examination committee of Ilias Baiazitov.
External member of the PhD qualifier of Mr. Akshay.
Co-supervised three projects (six students) for Mechanical Engineering BSc Introduction to Technological research project.
Co-supervised four projects for Mechanical Engineering PreMaster Academic Research Skills.

2016-2017

Supervised and examined mechanical engineering master project of Bert Scheper, ‘Experimental techniques for granular materials’.
Examined a mechanical engineering master project on ‘Using heat pipes in a magneto-caloric heat pump’.
Co-supervised four projects (nine students) for Mechanical Engineering BSc Introduction to Technological research project.
Examined a PhD thesis from Department of Fluid and Thermal Engineering, University of Twente, The Netherlands, entitled ‘Numerical investigation of spray combustion towards HiTAC conditions’.
Examined a PhD thesis from Physics of Fluids Group, University of Twente, The Netherlands, entitled ‘Anomalous Intruder Response in Diverse Granular Systems’.
Co-supervised two projects (four students) for Mechanical Engineering PreMaster Academic Research Skills.

2015-2016

Examined a PhD thesis from Environmental Hydraulics Laboratory, École Polytechique Federale de Lausanne, Switzerland, entitled ‘Particle Size Segregation Granular Flows’.
Examined a PhD thesis from Department Maritime and Transport Technology, Delft University of Technology, The Netherlands, entitled ‘Modelling Dust Liberation in Bulk Material Handling Systems’.
Co-supervised two projects for Mechanical Engineering BSc Introduction to Technological research project. Projects entitled ‘Prediction of a Hexagram Shaped Drum by Calibrating Simulation Software on a Circular Drum Experiment: A Parameter Study’ and ‘Determining the velocity profile of particles in a split-bottom shear cell’.
Daily supervisor, assistant promotor and member of the committee of a PhD student, Deepak Tunuguntla, on a project entitled ‘Polydisperse granular flows over inclined channels’.

2014-2015

Supervised two projects (four students) for Mechanical Engineering BSc Introduction to Technological research project. Projects entitled ‘Effects of non-circular tumblers on granular density segregation’ and ‘Investigation of granular segregation in s rotating drum with a core’.
Examined a PhD thesis from the School of Chemical Engineering and Transport Phenomena, The University of Delft, Netherlands entitled ‘Gas jets in granular matter: Observed by a high-speed X-ray tomography system’.
Daily supervisor, assistant promotor and member of the committee of a PhD student, Nico Rivas, on a project entitled ‘Discrete and continuum descriptions of shaken granular matter’. Graduated cum laude.

2013-2014

Co-supervised two projects (four students) for Mechanical Engineering BSc Introduction to Technological research project. Projects entitled ‘Mixing of dry granular materials in non-rotationally symmetric drums’ and ‘Segregating of non-spherical particles in narrow rotating drums’.

2012-2013

Examined a PhD thesis from the School of Civil Engineering, The University of Sydney, Australia entitled ‘Grainsize dynamics of granular flows’.
Examined a mechanical engineering masters project on ‘Time-domain impedance boundary conditions in computational fluid dynamics for use in thermoacoustic modeling’.
Co-supervised a Multiscale Mechanics masters student on ‘Closure laws for granular, shallow-layer, bi-dispersed flows down an inclined chute’.
Daily supervisor, assistant promotor and member of the committee of a PhD student on a project entitled ‘An investigation into clustering and segregation in granular materials’.

2011-2012

Examined a mathematics masters project on ‘Convergence of an implicit Runge-Kutta discontinuous Galerkin method using smooth limiters’.
Sat on one Mechantronica Project (Project F) examination committee.
Co-supervised a Physics of Fluids (PoF) masters student on ‘Experimental investigation of wave dynamics in a Hele-Shaw Beach’.
Supervised an Multiscale Mechanics masters student on ‘An experimental and DPM study of erosion in granular materials’.
Examined mechanical engineering masters projects on ‘Modelling granular flows impinging on an inclined plane with use of an open source DPM code in 3D’.

2010-2011

Sat on one Mechantronica Project (Project F) examination committee.
Examined mechanical engineering masters project on ‘Adaptive smoothed finite element method’.

2009-2010

Co-supervised three Bachelor Math projects on ‘Modelling of algae growth’.

2008-2009

Examined two MMath projects on ‘Extraction of energy from water waves’.

2007-2008

Supervised and Examined two Experimental MPhys projects on ‘Fingering in granular chute flows’.