Michael Pekris

Dr Michael Pekris


Lecturer in Mechanical Engineering Sciences
+44 (0)1483 689293
07 AB 02

Academic and research departments

Department of Mechanical Engineering Sciences.

Biography

Biography

 

Dr Michael Pekris completed his undergraduate and Masters degree in Engineering Science at the University of Oxford in 2004, and was a member of St Catherine's College. His Masters thesis was on liquid crystal heat transfer measurements in trapezoidal passages with jets for high pressure turbine blade internal cooling. Following a year in industry, working in a technical role at a mobile telecommunications consultancy, Michael returned to the Osney Thermofluids Laboratory in the Department of Engineering Science at Oxford, and completed a Rolls-Royce/EPSRC funded doctorate in Mechanical Engineering in 2010. His work led to improvements in the industrial design of compliant contacting shaft seal technology for jet engines. He held a stipendiary lectureship at St Hugh's College, Oxford between 2007 and 2009, delivering mechanical engineering modules in the area of thermofluids and turbomachinery.

Before joining Surrey University, Michael worked at Rolls-Royce in an industrial Research & Development role within the Structures & Transmissions department since January 2010. There he led UK government supported research projects into advanced seal technology for civil aircraft, in collaboration with a number of commercial and academic partners and suppliers. He was industrial liaison for the Oxford University Technology Centre in Advanced Seals, and concurrently held the position of departmental intellectual property manager between 2013 and 2015.

While at Rolls-Royce, Michael was responsible for a range of computational and experimental research, and oversaw a number of in-house development engine and rig test campaigns. He has experience in component design, rig design, systems engineering, experimental methods, numerical simulation, model validation, tribology testing, metallurgical analysis, and mechanical and fatigue testing of materials. Michael has authored six journal papers and one conference paper, and has been active in technical paper review for the American Society of Mechanical Engineers since 2012. He is inventor on one granted and four filed patents, and received a Rolls-Royce Innovation Award in 2013.

Michael is a Chartered Engineer and Member of the Institution of Mechanical Engineers.

Research interests

  • Environmental technologies including seals, and their application to aero-engines, unmanned aerial vehicles, and land-based industrial machines.
  • Fluids and heat transfer
  • Aerodynamics
  • Thermodynamic cycles
  • Rotating machinery: measurement and modelling
  • Interdisciplinary collaborative research

Teaching

ENG2088/ENG2103 - 2nd Year Dynamics (Mechanical & Civil)

ENG3169 - 3rd Year Engineering Management

BEng / MEng project supervision

Professional training visiting tutor.

Affiliations

Chartered Engineer and Member of the Institution of Mechanical Engineers

Active in technical paper review for the American Society of Mechanical Engineers (ASME) since 2012.

My publications

Publications

Journal Articles

Fico, V., Pekris, M. J., Barnes, C., Kha, R-K, Gillespie, D. R. H., 2016, ” CFD and Thermal Analysis of Leaf Seals for Aero-Engine Application”, J. Eng. Gas Turbines Power, GTP-16-1487 [DOI: 10.1115/1.4035595].

Pekris, M. J., Franceschini, G., Owen, A. K., Jones, T. V. and Gillespie, D. R. H., 2016, ”Analytical Modeling and Experimental Validation of Heating at the Leaf Seal/Rotor Interface”, J. Eng. Gas Turbines Power, GTP-16-1367 [DOI: 10.1115/1.4034702].

Pelegrin-Garcia, J-D., Gillespie, D. R. H., Pekris, M. J., Franceshini, G. and Ganin, L., 2016, “Experimental Characterization of Rotor Convective Heat Transfer Coefficients in the Vicinity of a Leaf Seal”, J. Eng. Gas Turbines Power [DOI: 10.1115/1.4034519].Pekris, M. J., Franceschini, G., Jahn, I.H.J., Gillespie, D.R.H., 2015, “Experimental investigation of a leaf seal prototype at engine-representative speeds and pressures”, J. Eng. Gas Turbines Power, 138, 072502-9 [DOI: 10.1115/1.4031875].Pekris, M. J., Nasti, A., Jahn, I.H.J., Franceschini, G., Gillespie, D.R.H., 2015, “High-Speed Characterization of a Prototype Leaf Seal on an Advanced Seal Test Facility”, J. Eng. Gas Turbines Power, 138, 082503-9 [DOI: 10.1115/1.4032422].Pekris, M. J., Franceschini, G. and Gillespie, D.R.H., 2014, An investigation of the flow, mechanical and thermal characteristics of conventional and pressure balanced brush seals, J. Eng. Gas Turbines Power, 136, 062502-1 [DOI: 10.1115/1.4026243].

Conference Papers

Pekris, M. J., Franceschini, G., Owen, A. K., Jones, T. V. and Gillespie, D. R. H. (2016),”Analytical Modeling and Experimental Validation of Heating at the Leaf Seal/Rotor Interface”, ASME Turbo Expo 2016 GT2016-57577Fico, V., Pekris, M. J., Barnes, C., Kha, R-K, Gillespie, D. R. H. (2016),” CFD and Thermal Analysis of Leaf Seals for Aero-Engine Application,” ASME Turbo Expo 2016 GT2016-56735.Pelegrin-Garcia, J-D., Gillespie, D. R. H., Pekris, M. J., Franceshini, G. and Ganin, L. (2016) “Experimental Characterization of Rotor Convective Heat Transfer Coefficients in the Vicinity of a Leaf Seal”, ASME Turbo Expo 2016 GT2016-57603Pekris, M. J., Franceschini, G., Jahn, I.H.J., Gillespie, D.R.H., 2015, “Experimental investigation of a leaf seal prototype at engine-representative speeds and pressures”, ASME Paper GT2015-43231.Pekris, M. J., Franceschini, G., Jahn, I.H.J., Gillespie, D.R.H., 2015, “Experimental investigation of a leaf seal prototype at engine-representative speeds and pressures”, ASME Paper GT2015-43465.Pekris, M. J., Franceschini, G., Gillespie, D.R.H., 2012,” An Investigation of Flow, Mechanical and Thermal Performance of Conventional and Pressure-Balanced Brush Seals”, ASME paper GT2012-68901.Pekris, M. J., Franceschini, G., Gillespie, D. R. H., 2011, ”Effect of Geometric Changes in an Idealised Contacting Brush Seal Bristle Pack on Typical Key Performance Measures”, ASME Paper GT2011-46492.