Mr. Georgi Stefanov Djambazov, PhD
Curriculum Vitae
School
of Computing and Mathematical Sciences
University of Greenwich
Old Royal Naval College
Park Row, Greenwich
London SE10 9LS, UK
e-mail: G.Djambazov@gre.ac.uk
http://staffweb.cms.gre.ac.uk/~dg12
Phone: +44(0)20 8331 9589
EDUCATION
PhD in Computational Modelling. University of Greenwich, England, September,
1998.
Thesis: Numerical Techniques for Computational Aeroacoustics.
In that thesis a novel higher accuracy numerical scheme was proposed and investigated
for the numerical simulation of sound waves propagation in moving fluid media.
MSc in Decision Support Systems. University of Sunderland, England, 1995.
Thesis: Swing-blade wave turbine simulation.
MSc in Mechanical Engineering/Fluids Engineering. Higher Institute of
Mechanical and Electrical Engineering. Sofia, Bulgaria, 1986. Subjects (among
others): Higher Mathematics, Fluid Mechanics, Numerical Methods in Engineering.
Thesis: Numerical design and optimization of a Francis turbine impeller.
Numerical / Mathematical Modelling Skills
EXPERIENCE
October 1998 - Present: Senior Research Fellow in Numerical Modelling
and Process Analysis, School of Computing and Mathematical Sciences, University
of Greenwich.
Research and Consultancy
Performed process analysis and numerical computer simulations of various metallurgical processes using and extending (by design and development of additional software) the computational environment PHYSICA. Responsible for user support, development and maintenance of the PHYSICA multi-physics computational modelling software package.
Projects to which I have contributed significantly include:
2011 : Information system on the eutrophication of coastal areas (ISECA-INTERREG-2);
2008 – 2011 : Modelling of Steel Converter Process, funded by ArcelorMittal Research;
2004 – 2009 : IMPRESS – European integrated project on High-temperature turbine materials and Raney-type catalytic powders;
2006 – 2010 : Vacuum Arc Remelting, EPRSC grant (EP/D505011/1);
2006 – 2011 : Continuous Casting Modelling, funded by ArcelorMittal Research;
2003 – 2004 : Vacuum Dezincing (EPRSC GR/R35599/01);
2002 – 2003 : Environmentally friendly aluminium electrolysis, funded by the USA government;
2001 – 2002 : Induction ‘cold-crucible’ melting;
1998 – 2001 : Magnetic semi-levitation melting of highly reactive alloys (EPSRC Grant No:- GR/L97483).
Teaching: Multiphysics modelling for the processing industry (MSc level) - lectures, tutorials and examination; course uses the PHYSICA software (2005 - present). Also supervised 6 doctoral students (4 successfully completed their PhD theses).
October 1995 - 1998:
Postgraduate student in Computational Fluid Dynamics and Aeroacoustics, School
of Computing and Mathematical Sciences, University of Greenwich.
Designed and developed software for direct numerical simulation of complex
nonlinear sound fields in unsteady air flows. Applications include the
reduction of aerodynamically generated noise by propellers, jets, high-speed
tunnel exits, wind-swept buildings, etc.
January 1987 - September 1995: Assistant Lecturer, Department of
Hydraulic Machines, Higher Institute of Mechanical and Electrical Engineering
(Technical University), Sofia, Bulgaria.
* Responsible for teaching, examination, and project supervision of Mechanical
Engineering students specialising in Hydraulic and Pneumatic Technology.
* Performed research on automated design and optimisation of hydraulic turbines
and pumps based on efficient solvers for incompressible fluid flow.
OTHER
ACCOMPLISHMENTS
Software tools for the computational modeller: Designed, wrote, and implemented
software for easy mesh generation and computed results visualisation.
PROGRAMMING
LANGUAGES, SOFTWARE, OPERATING SYSTEMS
FORTRAN, PASCAL, Postscript, PHYSICA, FEMGV, Gnuplot, MS DOS, Windows, Unix
LANGUAGES
Fluent in English and Bulgarian, also speaks Russian and some German.
PUBLICATIONS
1. Georgi S. Djambazov, "Zonal Method for Simultaneous Definition of Block-Structured Geometry and Mesh", Journal of Algorithms & Computational Technology, Volume 6, Number 1, pp. 203-218, March 2012, ISSN 1748-3018, doi: 10.1260/1748-3018.6.1.203
2. G. Djambazov, K. Pericleous, B. Lebon, Y. Doh, A. Jardy, P. Chapelle, G. Ghazal, P. Gardin. Investigation of a possible route for oxygen transport via the metal droplets in top-blown steel convertors. Proceedings of the 2011 International Symposium on Liquid Metal Processing and Casting, Nancy, France, September 2011.
3. K. Pericleous, Y. Doh, G. Djambazov, B. Lebon, P. Gardin, P. Chapelle, A. Jardy, S. Gauthier. Towards the development of a complete model of the BOF converter. METEC InSteelCon 2011, Düsseldorf, Germany, 27 June – 1 July 2011.
4. Z. Kountouriotis, K. Pericleous, G. Djambazov, J.F. Domgin, P. Gardin. Experimental and numerical investigation of the transient meniscus behaviour in a continuous caster. METEC InSteelCon 2011, Düsseldorf, Germany, 27 June – 1 July 2011.
5. Z. Kountouriotis, K. Pericleous, G. Djambazov, J.F. Domgin, P. Gardin. Study of the steel/slag interface instability and the influence of injected gas in the continuous casting of steel. 8th International Conference on CFD in Oil & Gas, Metallurgical and Process Industries SINTEF/NTNU, Trondheim Norway, 21-23 June 2011.
6. R.A. Harding, M. Wickins, H. Wang, G. Djambazov, K.A. Pericleous. Development of a turbulence-free casting technique for titanium aluminides. Intermetallics, 19 (2011) 805-813, doi:10.1016/j.intermet.2010.11.022.
7. H. Wang, G. Djambazov, K.A. Pericleous, R.A. Harding, M. Wickins. Modelling the dynamics of the tilt casting process and the effect of the mould design on the casting quality. Computers & Fluids, 42 (2011) 92–101.
8. G. Djambazov, K. Pericleous, R.M. Ward, L. Yuan, P.D. Lee. A multiscale 3D model of the Vacuum Arc Remelting process. OptiMoM International conference, Cambridge, UK, 26-28 Sept, 2010.
9. G. Djambazov, V. Bojarevics and K. Pericleous. Vacuum Arc Remelting time dependent modelling. Magnetohydrodynamics, 45 (4), 475-482, 2009.
10. G. Djambazov, K. Pericleous. Choosing the Appropriate Level of Coupling in Multiphysics Modeling of Metallurgical Processes. 35th Internat. Conf. AMEE-2009, Sozopol, Bulgaria, June 2009, AIP Conference Proceedings 1184, ISBN 978-0-7354-0750-9, pp. 24-31, Nov. 2009.
11. G. Djambazov, K. Pericleous, V. Bojarevics. Effect of varying electromagnetic field on the VAR process. 6th Internat. Conf. EPM, Dresden, Germany, October 2009.
12. K. Pericleous, G. Djambazov, V. Bojarevics, R. M. Ward. A unified 3D model of the VAR process. Internat. Symposium LMPC, TMS, Santa Fe, USA, 2009 (ISBN 978-0-87339-743-8).
13. H. Wang, G. Djambazov, K. Pericleous, R. A. Harding and M. Wickins. Modelling the tilt-casting process for the tranquil filling of titanium alloy turbine blades, 12th Conference on Modeling of Casting, Welding and Advanced Solidification Processes, 53–60, TMS, 2009. (ISBN 978-0-87339-742-1)
14. L. Yuan, G. Djambazov, P. D. Lee and K. Pericleous. Multiscale modelling of the vacuum arc remelting process for the prediction on microstructure formation. International Journal of Modern Physics B, 23 (6 & 7), 1584–1590, World Scientific Publishing Company, 2009.
15. L. Yuan, P. D. Lee, G. Djambazov and K. Pericleous. Three-dimensional simulation of the influence of convection on dendritic solidification, 12th Conference on Modeling of Casting, Welding and Advanced Solidification Processes, 451–458, 2009.
16. Z. K. Wang, G. Djambazov, C.-H. Lai, K. Pericleous. Numerical investigation of a source extraction technique based on an acoustic correction method. Computers and Mathematics with Applications, 55 (3), 441–456, 2008.
17. K. Pericleous, G. Djambazov, B. Lebon, T. N. Croft, J.-F. Domgin and P. Gardin. Time-dependent modelling and experimental validation of the metal/flux interface in a continuous casting mould. Rev. Met. Paris, 1, 33–43, 2008.
18. K. Pericleous, G. Djambazov, B. Lebon, T. N. Croft, J.-F. Domgin and P. Gardin. Time-dependent modelling and experimental validation of the metal/flux interface in a continuous casting mould. (Best paper award.) 27th ATS International Steelmaking Conference, Paris, December 13-14, 2007.
19. L. Yuan, P. D. Lee, G. Djambazov, K. Pericleous. Numerical simulation of the effect of fluid flow on solute distribution and dendritic morphology. 2nd International Conference on Advances in Solidification Process, Graz, Austria, 204–207, ISBN: 1364-0461, 2008.
20. N. Strusevich, M. Hughes, C. Bailey, and G. Djambazov. Numerical modeling of electrodeposition phenomena. Electronics Systemintegration Technology Conference, ESTC 2008, 2nd Vol, Issue, 1-4, 281 – 286, 2008. (doi 10.1109/ESTC.2008.4684362)
21. G. Djambazov, K. A. Pericleous and V. Bojarevics. Modelling the VAR Process. 5th. European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2008), June 30 – July 5, Venice, Italy, 2008.
22. C. Lena, G. Djambazov and K. Pericleous. Modelling metal powder production by the gas atomisation process. TMS Annual Meeting, New Orleans, USA, March 2008.
23. C. Lena, G. Djambazov and K. Pericleous. Numerical modelling of the gas atomisation process for metal powder production, XXVI National Heat Transfer Conference - Palermo, Italy, June 23-25, 2008.
24. K. Pericleous, G. Djambazov, J.F. Domgin and P. Gardin. Turbulence model performance in continuous casting simulations, in M. Papadrakakis, B.H.V. Topping, (Editors), "Proceedings of the Sixth International Conference on Engineering Computational Technology", Civil-Comp Press, Stirlingshire, UK, Paper 50, 2008. (doi:10.4203/ccp.89.50)
25. A. Kao, G. Djambazov, K. Pericleous and V. Voller. Effects of Magnetic Fields on Crystal Growth. 7th Pamir International Conference Fundamental and Applied MHD, Giens, France, September 8-12, 2008.
26. R A Harding, M Wickins, H Wang, G Djambazov and K Pericleous. The Tilt Casting of Titanium Aluminides. LMPC 2007 Symposium, Nancy, France, Sept. 2007.
27. L. Yuan, G. Djambazov, K. Pericleous and P. D. Lee. Multiscale modelling of dendrite growth during Vacuum Arc Remelting, in Liq. Metal Proc. Cast., Ed. P. D. Lee, et al. (Nancy, France, 2007), 43–48, 2007.
28. Z. K. Wang, G. Djambazov, C.-H. Lai and K. Pericleous. Numerical simulation of flow-induced cavity noise in self-sustained oscillations. Computer and Visualisation in Science, 10, 123–134, 2007. (doi: 10.1007/s00791-006-0039-4)
29. K. Pericleous, G. Djambazov and H. Wang. Numerical modelling of the low-superheat casting of thin-section components. MCWASP Conference XI, Opio, France, June 2006.
30. M. Cross, T. N. Croft, G. Djambazov and K. Pericleous. Computational modelling of bubbles, droplets and particles in metals reduction and refining. Applied Math. Modelling, 30, 1445–1458, 2006.
31. K. Pericleous, V. Bojarevics, G. Djambazov, R. A. Harding, M. Wickins. Experimental and numerical study of the cold crucible melting process. Applied Math. Modelling, 30, 1262–1280, 2006.
32. C.-H. Lai, Z.-K. Wang, G. Djambazov and K. Pericleous. A distributed algorithm for flow induced acoustics, Journal of Computational Acoustics, 14 (1), 131–141, 2006.
33. K. Pericleous, V. Bojarevics, G. Djambazov, R. A. Harding and M. Wickins. Maximising heat transfer efficiency in the cold crucible induction melting process. EUROTHERM 82 Numerical Heat Transfer 2005, September 13-16, Gliwice-Cracow, Poland, Eds.: A. Nowak, R.A. Białecki, 2005.
34. L. S. Lai, G. Djambazov, C.-H. Lai and K. Pericleous. The effect of a sun-roof on the sound distribution of the interior of a car compartment, in Proceedings of the 12th International Congress on Sound and Vibration, Lisbon, Portugal, 11 – 14 July 2005.
35. Z. K. Wang, G. Djambazov, C.-H. Lai and K. Pericleous. An acoustic correction method for extracting sound signals. Computers And Mathematics With Applications, 47 (1), 57–69, Elsevier Science B.V., Amsterdam, 2004.
36. G. Djambazov, C. Bailey, M. Patel and J. Shrimpton. Numerical simulation of vacuum dezincing of lead alloy. TMS Annual Meeting, Charlotte, NC, March 2004. ISBN 0-87339-570-0.
37. M. K. Patel, C. Bailey, G. Djambazov, J. Shrimpton and V. Jalili. Application of CFD in vacuum dezincing process. Int. Conf. CFD in Minerals and Processes, CSIRO, Dec 2003.
38. V. Bojarevics, G. Djambazov, R. A. Harding, K. Pericleous and M. Wickins. Investigation of the cold crucible melting process: experimental and numerical study. Magnetohydrodynamics, 4, 395–402, 2003.
39. G. Djambazov, C.-H. Lai, K. Pericleous and Z. K. Wang. A coarse grid extraction of sound signals for computational aeroacoustics. Int. J. Numer. Meth. Fluids, 40, 1515–1525, 2002.
40. G. Djambazov, C.-H. Lai, K. Pericleous and Z. K.Wang. A defect correction method for multi-scale problems in computational aeroacoustics, in Lecture Notes in Computational Science and Engineering, 23, Ed. L. Pavarino et al, ISBN: 3-540-43413-5, Springer-Verlag, 147 – 156, 2002.
41. Z. K. Wang, G. Djambazov, C.-H. Lai and K.A. Pericleous. Analysis of a defect correction method for computational aeroacoustics, in Domain Decomposition Methods in Sciences and Engineering, 13, 447–454, published by International Centre for Numerical Methods in Engineering, Barcelona, Spain, 2002.
42. Z. K. Wang, G. Djambazov, C.-H. Lai and K. Pericleous. Calculation of acoustic wave propagation, in Proceedings of the 10th Annual Conference of the Association for Computational Mechanics in Engineering, 107–110, 2002.
43. G. Djambazov, K. Pericleous and V. Bojarevics. Adapting mesh and magnetic field for simulations of levitation melting. ECCOMAS CFD Conf., Swansea, Sept 2001.
44. G. Djambazov, K. Pericleous and C.-H. Lai. Airframe sound simulation based on staggered-grid higher order schemes and finite volume CFD methods, in Second SWING Aeroacoustics Workshop (6-7 October 2000, Brauschweig, Germany), Paper 11, Ed. Korner & Delfs, DLR, 2001.
45. G. Djambazov, C.-H. Lai and K. Pericleous. A defect correction method for the retrieval of acoustics waves, in Domain Decomposition Methods in Sciences and Engineering, 12, 289–296, published by ddm.org, Japan, 2001.
46. G. Djambazov, K. Pericleous and V. Bojarevics. Free surface and mesh control for the finite volume simulation of semi-levitation melting, in Proceedings of the 8th Annual Conference of the Association for Computational Mechanics in Engineering, 42–45, 2000.
47. G. Djambazov, C.-H. Lai and K. Pericleous. On the coupling of Navier-Stokes and linearised Euler equations for aeroacoustic simulation. Computing and Visualisation in Science, 3, 9–12, 2000.
48. G. Djambazov, C.-H. Lai and K. Pericleous. Staggered-mesh computation for aerodynamic sound. AIAA Journal, 38 (1), 16–21, 2000.
49. G. Djambazov, C.-H. Lai and K. Pericleous. A solution expansion technique for the use of CFD in aeroacoustics computation. AIAA Paper 2000-2049.
50. G. Djambazov, C.-H. Lai and K. Pericleous. Development of numerical techniques for near-field aeroacoustic computations. Int. J. Numer. Meth. Fluids, 29 (6), 719–731, 1999.
51. G. Djambazov, C.-H. Lai and K. Pericleous. Sound generation by vortex-blade interactions. 11th Conf. on DDM, Greenwich, July 1998, in Domain Decompositoin Methods in Sciences and Engineering, 11, 415–422, ddm.org, Bergen, 1999.
52. G. Djambazov, C.-H. Lai and K. Pericleous. Unsteady response of an isolated finite span swept airfoil to an incident gust. Third Comptutational Aeroacoustics (CAA) Workshop on Benchmark Problems, 8th-10th November, 1999.
53. G. Djambazov, C.-H. Lai and K. Pericleous. Efficient computation of aerodynamic noise, in Contemporary Mathematics 218, 500–506, American Mathematical Society, 1998.
54. G. Djambazov, C.-H. Lai and K. Pericleous. Development of a domain decomposition method for computational aeroacoustics, in Domain Decomposition Methods in Sciences and Engineering, 9, 719–725, Domain Decomposition Press, Bergen, 1998.
55. G. Djambazov, C.-H. Lai and K. Pericleous. Staggered mesh computation for aerodynamic sound. AIAA Paper 98-2219, 1998.
56. G. Djambazov, C.-H. Lai and K. Pericleous. Testing a linear propagation module on some acoustic scattering problems, in Proceedings of the Second International Workshop on Benchmark Problems for Computational Aeroacoustics, Florida State University, Tallahassee, Ed. R. Harding & C. Tam, 221–230, 1997.
57. G. Djambazov, C.-H. Lai and K. Pericleous. Domain decomposition methods for some aerodynamic noise problems. AIAA Paper 97-1608-CP, 1997.
May 2012