Title image - The Centre for Numerical Modelling and Process Analysis

The Computational Science & Engineering Group

About

CSEG is the most diverse of the four research groups within the CNMPA. Its origin coincides with that of the CNMPA, founded by Cross & Markatos in 1986. Since then, the CSEG has worked in a whole range of industrial and environmental problems involving fluid flow, heat transfer, chemical reaction, phase change, stress analysis, acoustics and even electromagnetics. The group is particularly known for its expertise in metals and minerals processing (smelting, casting, welding, solidification microstructure, etc.) with a long-term involvement in a number of projects of international significance; e.g. the modelling of the Rio-Tinto HIsmelt® process in Western Australia for the direct smelting of iron ore into iron, to replace the Blast Furnace technology. Experience in metal processing highlighted the need for "Multi-physics" modelling, which has remained the focus of research. In this context, the CSEG is responsible for the creation of some unique algorithms and software, including the multi-physics code PHYSICA, the spectral code SPHINX used in the joint EU/ESA project IMPRESS, to model strongly coupled Magneto-hydrodynamic problems (induction melting, em. Levitation), the code MHD_VALDIS modelling the aluminium electrolysis process, TESA to address thermoelectric effects in microstructure evolution etc. Other areas of research include aero-acoustics, microwaves, particulates handling, and the atmospheric environment. The group is supported through external funds from the EPSRC, EU, Royal Society and Industry.


Group Awards & Achievements

2016:

  • Best paper award - 8th International conference on physical and numerical simulation of materials processing 2016, for: K Pericleous, V Bojarevics and G Djambazov, “Dispersion of particles in liquid metal using electromagnetic stirring”

2014:

  • Prof Pericleous is a member of REF 2014 Panel B12: Aeronautical, Mechanical, Chemical and Manufacturing Engineering
  • CSEG win the British Foundry Medal and Prize for 2013 for the best paper to appear in the Foundry Trade Journal, the paper is entitled: Numerical modelling of the tilt casting process for γ-TiAl alloys.

2013:

  • Prof Pericleous joins the Scientific Advisory Board of the Helmholtz Research Alliance in Germany as an international member (Feb 2013)

2010:

  • Hong Wang a CSEG PhD student, receives the best PhD Thesis award at the final annual meeting of the EU IMPRESS project for her research on the casting of TiAl turbine blades, Budapest June 2010

2007:

  • A CSEG manuscript receives the top paper award at the ATS (Association Technique Siderurgiques) international conference in Paris, Dec. 2007

2006:

  • V. Bojarevics and K Pericleous referenced as providing the theoretical foundation to US Patent Application #20050175063 "Cold crucible induction furnace with eddy current damping", by CONSARC Inc.

Sept. 2005:

  • A paper authored by CSEG staff won the award for best paper in conference at the 2005 International Symposium on Liquid Metal Processing and Casting, Santa Fe, USA, September 18-21, 2005.

2003-2007:

  • K Pericleous, EU panel chair, member and proposal reviewer for: EU/FP6 NEST (New and Emerging Technologies) , EU/FP6 IP Global 3, EU/FP6 Nanotechnologies & Nano-sciences Knowledge-based Multifunctional Materials (NMP), EU/FP6 STREP.

2002, 2005:

  • K Pericleous is a founding Director of two companies, MPSL Ltd and Physica Ltd, University spin-offs created to exploit the commercial potential of multi-physics software produced by CSEG.

Oct. 2001:

  • Dr V Bojarevics awarded Japan Society for the Promotion of Science (JSPS) invitation fellowship for research in Japan, October-November 2001.

Selected Publications

  1.  Manoylov A, Lebon B, Djambazov G and Pericleous K (2017) Coupling of acoustic cavitation with DEM-based particle solvers for modeling de-agglomeration of particle clusters in liquid metals. Metallurgical and Materials Transactions A, 48 (11). pp. 5616-5627. ISSN 1073-5623 (doi:10.1007/s11661-017-4321-5)
  2.  Zhao R, Gao J, Kao A, Pericleous KA “ Measurements and modelling of dendritic growth velocities of pure Fe with thermoelectric MHD convection”, J. Crystal Growth (on line, July 2017)
  3.  Lebon, G. S. Bruno, Tzanakis, I., Djambazov, G., Pericleous, K. and Eskin, D. G. (2017) Numerical modelling of ultrasonic waves in a bubbly Newtonian liquid using a high-order acoustic cavitation model. Ultrasonics Sonochemistry, 37. pp. 660-668. ISSN 1350-4177 (Print), 1873-2828 (Online)
  4. Djambazov, G., Bojarevics, V., Pericleous, K. and Forzan, M. (2017) Numerical modelling of silicon melt purification in induction directional solidification system. International Journal of Applied Electromagnetics and Mechanics, 53 (S1). S95-S102. ISSN 1383-5416
  5. Gao J, Galenko P, Alexandrov, Kao A, Pericleous K, “Dendritic growth velocities in an undercooled melt of pure nickel under static magnetic fields: a test of theory with convection Acta Materialia, Volume 103, 15 January 2016, Pages 184-191,
  6. Cai, B., Wang, J., Kao, A., Pericleous, K., Phillion, A. B., Atwood, R. C. and Lee, P. D. (2016) 4D synchrotron X-ray tomographic quantification of the transition from cellular to dendrite growth during directional solidification. Acta Materialia, 117. pp. 160-169. ISSN 1359-6454
  7. Gao, Jianrong, Kao, Andrew, Bojarevics, Valdis, Pericleous, Koulis, Galenko, Peter K. and Alexandrov, Dimitri V. (2016) Modeling of convection, temperature distribution and dendritic growth in glass-fluxed nickel melts. Journal of Crystal Growth, 471. pp. 66-72. ISSN 0022-0248
  8. Kao, A., Cai, B., Lee, P. D. and Pericleous, K. (2016) The effects of Thermoelectric Magnetohydrodynamics in directional solidification under a transverse magnetic field. Journal of Crystal Growth, 457:1. pp. 270-274. ISSN 0022-0248
  9. Iakovos Tzanakis, Gerard Lebon, Dmitry Eskin, Koulis Pericleous, ”Characterisation of the ultrasonic acoustic spectrum and pressure field in aluminium melt with an advanced cavitometer”, Journal of Materials Processing Technology, Vol 229, March 2016, Pages 582-586
  10. I Tzanakis GSB Lebon, D Eskin, K Pericleous ‘Investigation of the factors influencing cavitation intensity during the ultrasonic treatment of molten aluminium’ J. Materials & Design, Vol 90, 15 January 2016, Pages 979-983
  11. Tzanakis, I., Lebon, G. S. B., Eskin, D. G. and Pericleous, K. A. (2016) Characterizing the cavitation development and acoustic spectrum in various liquids. Ultrasonics Sonochemistry, 34. pp. 651-662.
  12. Kao, Andrew, Gao, Jianrong, Mengkun, Han, Pericleous, Koulis, Alexandrov, Dmitri V. and Galenko, Peter K. (2015) Dendritic growth velocities in an undercooled melt of pure nickel under static magnetic fields: A test of theory with convection. Acta Materialia, 103. pp. 184-191. ISSN 1359-6454 (doi:10.1016/j.actamat.2015.10.014 <http://doi.org/10.1016/j.actamat.2015.10.014>)
  13. Lebon, Gerard S. B., Pericleous, Koulis, Tzanakis, Iakovos and Eskin, Dmitry G. (2015) Dynamics of two interacting hydrogen bubbles in liquid aluminium under the influence of a strong acoustic field. Physical Review E (PRE), 92 (4). 043004. ISSN 1539-3755 (Print), 1550-2376 (Online) (doi:10.1103/PhysRevE.92.043004 <http://doi.org/10.1103/PhysRevE.92.043004>)
  14. Kao, Andrew (2015) Analytic solutions to determine critical magnetic fields for thermoelectric magnetohydrodynamics in alloy solidification. Metallurgical and Materials Transactions A, 46A (9). pp. 4215-4233. ISSN 1073-5623 (Print), 1543-1940 (Online) (doi:10.1007/s11661-015-2998-x <http://doi.org/10.1007/s11661-015-2998-x>)
  15. Djambazov, G., Bojarevics, V., Pericleous, K. and Croft, N. (2015) Finite volume solutions for electromagnetic induction processing. Applied Mathematical Modelling, 39 (16). pp. 4733-4745. ISSN 0307-904X (doi:10.1016/j.apm.2015.03.059 <http://doi.org/10.1016/j.apm.2015.03.059>)
  16. Djambazov, G. and Pericleous, K. (2014) Modelled atmospheric contribution to nitrogen eutrophication in the English Channel and the Southern North Sea. Atmospheric Environment, 102. pp. 191-199. ISSN 1352-2310 (doi:10.1016/j.atmosenv.2014.11.071 <http://doi.org/10.1016/j.atmosenv.2014.11.071
Prof Koulis Pericleous
Prof Koulis Pericleous: CSEG Director

Group Statistics

2017:

  • 6 Academic/Research Staff
  • 8 Phd Students

2014-2017:

  • 35 Total Publications
  • £1,056,000 Total Research Income

Links to selected projects


Significant Grants

2017:

  • £364,000 EPSRC (EP/P034411/1) Top Coil, 2017-2020. Stemming from research carried out in EU ExoMet and a joint patent with the European Space Agency, this project aims to develop a contactless electromagnetic device for the ultrasonic treatment of metals in liquid state, ranging from light alloys (Al, Mg) to high temperature reactive alloys (Ni, Fe, Ti) and nano-composites. Led by Prof Pericleous, with collaborators from Birmingham and Oxford Universities and industrial partners.
  • £323,000 EPSRC Ultramelt#2, 2018-2021. Continuation of EPSRC UltraMelt, this project extends experimental and modelling work on the ultrasonic processing of light alloys to enable upscaling and industrial implementation. Led by Prof Pericleous with collaborators from Brunel and Oxford Brookes and industrial support.

2016:

  • £85,000 KTP project with FLOPLAST LTD to improve the design of domestic plumbing aeration valves to meet US standards. Led by Prof Patel.

2014:

  • £264,000 EU SIKELOR, 2014-2017. An important environmental project, for the recovery of the 50% or so silicon wasted as "kerf" in the cutting process to produce photo-voltaic silicon panels. Greenwich will collaborate with German and Italian partners to remove impurities from the kerf, using electromagnetic means so that the silicon can be recycled

2013:

  • £281,000 EPSRC UltraMelt, 2013-2016. Development of method for the ultrasonic treatment of large volumes of liquid metal to produce refined grain structures. Collaboration with Brunel Uni (experiments).
  • £279,000 EPSRC TECalloy, 2013-2016. Extension of theoretical framework developed at Greenwich, to study the effects of magnetic fields in producing tailor-made alloy crystal structures by controlling solute micro-convection using the thermoelectric properties of the alloy. Research in collaboration with the Manchester Uni. Synchrotron facility at Diamond.
  • £69,000, BRM, Industrial, 2013. To examine the reasons for premature "kettle" failure in the lead refining process. Consultancy work carried out on behalf of British Refined Metals (BRM, part of the Xstrata-Glencore group).

2012:

  • £10,000 Royal Society China Exchange Grant. Research exchange with the North Eastern University of China to study the effects of magnetic fields on alloy crystal growth.
  • €400,000 EU EXOMET. To study the effects of external fields (magnetic, ultrasonic, shear) on the dispersion of nano-particles or oxides in advanced light alloys of magnesium and aluminium. Project led by the European Space Agency (ESA). Applications in the production of Metal Matrix Nano Composites (MMNC) for use in future transport.

2011:

  • €264,000 Interreg 2Seas, ISECA 2011-2014. To study the effects of airborne pollution from urban sources on the growth of algal blooms in the coastal areas bordering the North Sea and the English Channel and develop a web-based information system for use by local authorities, tourism and other interested parties. Partners from France, Belgium, the Netherlands and UK.

2009:

  • £95,000 INDUSTRIAL, ArcelorMIttal, 2009-2012. Mathematical model and software for the modelling of the Basic Oxygen Furnace, used to convert iron to steel. Joint PhD supervision of Yannick Doh, registered at Nancy University, France.
  • £170,000 TSB COLDMELT, 2009-2012. Development of a contactless melting/pouring method for the development of titanium metal powder, using electromagnetic forces. Project led by Phoenix Scientific Industries (PSI). Design developed by Greenwich now in the implementation stage for production.

2008:

  • £94,000 MHD-VALDIS Aluminium Electrolysis cell design software, 2008-2013. This unique code computes the MHD stability of aluminium electrolysis cells, taking into account their electrical connections to the complete plant. It has been used for the design of the largest cells in the world (up to 500kA). It is used globally by Rusal (Russia), Dubal (Dubai), Norsk Hydro (Norway), SAMI & GAMI (China)

2006:

  • £169,188 EPSRC (EP/D505011/1) grant awarded for MEASUREMENT AND MODELLING OF ELECTRICAL, TRANSPORT AND PHASE-CHANGE PHENOMENA AND APPLICATION TO VACUUM ARC REMELTING FOR OPTIMAL MATERIAL QUALITY.

2005:

  • €600,000 EU/ESA FP6 IP awarded for project IMPRESS: INTERMETALLIC MATERIALS PROCESSING IN RELATION TO EARTH AND SPACE SOLIDIFICATION.
  • £66,000 project funded by ARCELOR (Fr) concerning STEEL CONTINUOUS CASTING MODELS FOR FLUX REDUCTION.

2004:

  • £140,000 European Union Interreg IIIa grant awarded for ATTMA, AEROSOL TRANSPORT IN THE TRANS-MANCHE ATMOSPHERE.