Projects

MATHEGRAM runs 15 cross-linked research projects undertaken by 15 early stage researchers.

Research projects

Each project is being run by one of the partners of this consortium.

Host institution: University of Surrey, UK

Primary supervisor: Professor Charley Wu

Objectives

  • Explore fundamental mechanisms underlying heat generation and transfer in granular materials at low stresses
  • Develop a DEM model capable of modelling heat generation and transfer in granular materials at low stresses
  • Validate the DEM model using experimental data on high shear mixing. 

Host institution: TU Graz, Austria

Primary supervisor: Professor Johannes Khinast

Objectives

  • Develop and validate thermomechanical models with temperature-dependent properties for predicting heat generation and transfer at high consolidation stresses
  • Analyse heat generation during compaction of various powders
  • Explore mechanisms dominating thermo-mechanical behaviour of powders.

Host institution: Johnson Matthey Plc., UK

Primary supervisor: Dr Michele Marigo

Objectives

  • Explore the effect of chemical kinetics on heat generation and transfer, as well as mass transfer during processing of granular materials 
  • Develop DEM and CFD-DEM models for heat generation due to chemical reaction
  • Validate the models using experimental data on drying of granular materials in kilns.

Host institution: University of Surrey, UK

Primary supervisor: Professor Charley Wu

Objectives

  • Experimentally explore changes in mechanical properties due to temperature change
  • Model and to examine the variation of temperature and loads during storage and discharge of granular materials.

Host institution: DCS Computing GmbH, Austria.

Primary supervisor: Dr Christoph Kloss

Objectives

  • Develop coupled DEM-CFD models for analysing simultaneous heat and mass transfer in granular materials
  • Implement temperature-dependant properties in LIGGGHTS®
  • Incorporate a non-constant density solver into CFDEM® coupling to model thermal expansion
  • Integrate all validated models in LIGGGHTS® and CFDEM® for advanced multi-physics simulations.

Host institution: Imperial College London, UK.

Primary supervisor: Dr David Taborda

Objectives

  • Understand the link between thermal changes at the particle scale and overall thermo-mechanical response of granular media through thermal characterisation experiments in a controlled-stress environment
  • Develop a dataset suited to validation of thermal particulate DEM codes.

Host institution: Imperial College London, UK.

Primary supervisor: Professor Catherine O’Sullivan

Objectives

  • Perform DEM modelling of thermal triaxial tests and to advance understanding of the link between contact configurations and thermal performance of granular materials
  • Simulate controlled tests on model granular materials used by ESR6
  • Explore the sensitivity of thermal response to fabric and packing configuration.

Host institution: Institut National de la Recherche Agronomique (INRA), France

Primary supervisor: Professor Denis Flick

Objectives

  • Determine the particle swelling kinetics and the particle rheology as a function of gelatinisation degree
  • Establish DEM models for heat induced swelling of soft particles
  • Validate the model by rheological measurements under heat treatment
  • Develop a simplified model applicable for process optimisation.

Host institution: University of Salerno, Italy

Primary supervisor: Professor Massimo Poletto

Objectives

  • Explore the effect of temperature with a high temperature annular shear tester
  • Develop a specifically built device to determine the effects of material properties and process conditions on the layer quality and on the final product quality
  • Develop a DEM model and a calibrate procedure to predict the final layer properties during powder spreading.

Host institution: CNRS - SVI (Surface of Glass and Interfaces) Laboratory, France

Primary supervisor: Professor Pierre Jop

Objectives

  • Perform in-situ, high temperature sintering using synchrotron X-ray computed tomography (CT) at ESRF
  • Analyse microstructural evolutions with respect to the ratio of crystalline, glassy, inert or fusible grains and powders considering strategies to reduce energy consumption
  • Examine the interplay between the presence of liquid phase and the microstructural evolution.

Host institution: University of Salerno, Italy

Primary supervisor: Professor Massimo Poletto

Objectives

  • Explore the laser heating effect on beds of powders prepared for selective laser sintering (SLS)
  • Establish a design space for SLS in terms of critical material attributes and critical process parameters.

Recruiting

Two Early Stage Researchers are available. Please apply at https://euraxess.ec.europa.eu/jobs/390022

Host institution: Airbus Defence and Space GmbH, Germany

Primary supervisor: Dr Elmar Bonaccurso

Objectives

  • Identify materials and process conditions that can produce thin smooth films on complex 3D aerospace components
  • Understand the fundamental physics controlling homogeneous electrostatic deposition of fine powder particles
  • Develop a process protocol for producing light and durable thin films using powder coating for aerospace applications.

Host institution: Centre Internacional de Mètodes Numèrics a l’Enginyeria (CIMNE), Spain

Primary supervisor: Professor Francisco Zárate

Objectives

  • Develop PFEM model for simultaneous fluid flow and heat transfer through packed granular bed
  • Explore the effects of packing properties and characteristics on heat flux and fluid flow
  • Identify innovative solutions for regulating heat transfer using packed granular layers.

Recruiting

One PhD studentship is available. Please apply at https://www.cimne.com/vnews/10594/vac-2018-34-%E2%80%93-phd-position-msca-itn--mathegram

Host institution: CNRS - SIMAP (Materials Science and Engineering) Laboratory, France

Primary supervisor: Professor Didier Bouvard

Objectives

  • Investigate constrained sintering through in-situ X-ray nano-tomography (nCT) at the length-scale of particles
  • Provide quantitative insights into the sintering phenomenon
  • Explore the development of anisotropy due to the presence of a substrate during the entire sintering cycle.

Host institution: CNRS - SIMAP (Materials Science and Engineering) Laboratory, France

Primary supervisor: Professor Christophe Martin

Objectives

  • Develop a DEM model for analysing constrained sintering
  • Analyse constrained sintering by considering grain boundary and surface diffusion as the main mechanisms of mass transport
  • Analyse local constraints and defect evolution using realistic microstructures and particles.

Contact us

Find us

Address
Department of Chemical and Process Engineering
University of Surrey
Guildford
Surrey
GU2 7XH