Mathematical Modelling

Research Leader: Rowan Deam Email: rdeam@swin.edu.au PhD, Theoretical Physics: Cambridge University BSc Honours Degree, Physics: Southampton University

Research Activities
Modelling of:

• The scaling behaviour of micro-turbines
• Transport properties of liquids under microwave fields
  Plasma Chemistry
• Heat flow in Laser and Microwave processing
• Cutting mechanism of Abrasive Water Jets
• Development of an “echo-genic” needle

Career Summary
Rowan Deam’s early career was as a Theoretical Physicist. He has since worked in Industrial Research; firstly in the Research Department of the Central Electricity Generating Board in the UK, then in Manufacturing Technology for CSIRO. He now works at the Industrial Research Institute Swinburne in the Faculty of Engineering and Industrial Sciences at Swinburne University. His interest is in mathematical modelling of industrial processes, physical and chemical systems. He has experience managing large research groups (55 people) and has a keen interest in the strategic direction of applied research.

Recent Awards
WTIA - Sir William Hudson Memorial Award - Best published (Australian) research paper in 2002. R.T. Deam, M. Brandt and J. Harris, "The measurement of capillary waves on a weldpool formed by a Nd:YAG laser". Australasian Welding Journal Vol 47, 2002, p39-47.

Publications

Book Chapters

• R.T. Deam, M. Brandt, & J. Harris, Investigation of capillary waves on a non-keyhole weldpool formed by a laser, in Advances in Laser Materials Processing Research and Applications, 2005 pp19-55 ISBN:81-308-0078-0 Editors: Jonathan Lawrence and David K.Y. Low

Papers

• A R Dayal & R.T. Deam,  Maximum plasma power for a cylindrical bore torch, Journal of Physics D: Applied Physics Vol 35, pp1486-1490, 2002
• R.T. Deam, M. Brandt & J. Harris,  The measurement of capillary waves on a weldpool formed by a Nd:YAG laser, Australasian Welding Journal, Vol. 47, 4th Quarter, pp39-47 2002
• R T Deam, M Brandt and J Harris,  Investigation of capillary waves excited by a Nd :YAG laser using pyrometry, Journal of Physics D: Applied Physics Vol. 36 No. 20, pp 2435–2445, 2003
• C. Antonio, R. Deam & A. Taube,  A review of the variable frequency microwave technology in material processing, Journal of Microwave Power & Electromagnetic Energy, Vol. 38, No. 1, 2003
• R. T. Deam, E. Lemma and D. H. Ahmed, Modelling of the abrasive water jet cutting process, Wear, Volume 257, Issues 9-10, Pages 877-891, November 2004
• E. Lemma, R. Deam and L. Chen, Maximum depth of cut and mechanics of erosion in AWJ oscillation cutting of ductile materials, Journal of Materials Processing Technology, Volume 160, Issue 2, Pages 188-197, 20 March 2005
• R.T. Deam, B. Bednarz, N. Stokes, Instability in filling thin walled continuous castings, Modelling Simul. Mater. Sci. Eng. 13 (2005) Pages 471–492
• C. Antonio and R.T. Deam, Comparison of linear and non-linear sweep rate regimes in variable frequency microwave technique for uniform heating in materials processing, Journal of Materials Processing Technology, Vol.169, Issue 2, (2005)  pages 234–241
• C. Ma and R.T. Deam, A correlation for predicting the kerf profile from abrasive water jet cutting, Experimental Thermal and Fluid Science, 30 (2006) pp 337–343
• J.A. Francis, B. Bednarz and R. Deam, Dilution Control in Hardfacing Overlays, Australasian Welding Journal, Vol. 51, First quarter, 2006
• T Kovács and R T Deam,  Methane reformation using plasma: an initial study, Journal of Physics D: Applied Physics, 39 (2006) pp 2391–2400

Conference Papers

• Wang, H., Iovenitti, P., Harvey, E., Masood, S., Deam, R., Mixing of liquids using obstacles in microchannels,  Proceedings of SPIE - The International Society for Optical Engineering 4590 pp. 204-212, 2001
• R.T.Deam,  Reduction of CO2 by microwave induced plasma, 9th International Conference on Microwave & RF Heating, Loughborough, UK September 2003
• C. Antonio, R.T. Deam & A. Taube, Modelling of the Energy Density Distribution in a Variable Frequency Microwave using CST Microwave Studio, Asia-Pacific Microwave Conference, 2003
• Jason P Hayes, Helmut Thissen, Rowan Deam, and Muralidhar Ghantasala,  NANOMETER RESOLUTION EXCIMER LASER ABLAT ION OF THIN POLYMER FILMS, Proceedings of the 1st Pacific International Conference on Application of Lasers and Optics 2004
• Rowan T. Deam, Milan Brandt, James Harris,  MONITORING AND CONTROL OF LASER CLADDING AND WELDING, Proceedings of the 1st Pacific International Conference on Application of Lasers and Optics 2004
• C. Antonio, R.T. Deam & A. Taube, Investigation of Enhanced Diffusion in Microwave Processed Epoxy Systems, Proceedings of Microwave 2004, International Symposium on Microwave Science and its Application to Related Fields, Takamatsu, Japan, July 2004
• E. R. Binner and R. T. Deam, MICROWAVE PLASMA: POLLUTION REDUCER OR PRODUCER?, International Conference on Clean Air, London, August 2004
• J. Francis, B Bednarz and R. Deam, Dilution Control in Hardfacing Overlays, WTIA 53rd Annual Conference Darwin, October 2005
• R.T. Deam, Y. Durandet,&, C.H J. Johnson, THE ROLE OF ANALYTIC HEAT FLOW MODELS IN LASER PROCESSING, Proceedings of the 2nd Pacific International Conference on Application of Lasers and Optics 2006
• Y. Durandet, R. Deam, P. Bendeich, M. Ripley, M. Brandt, Qianchu Liu, and P. Babura, RESIDUAL STRESSES IN AL7075 ALLOY PLATE LASER CLAD WITH AL-12SI ALLOY POWDER, Proceedings of the 2nd Pacific International Conference on Application of Lasers and Optics 2006