Stephen Garrett

Me 2012Professor Stephen Garrett FRAeS SFHEA

Chair in Fluid Mechanics

 

Contact details

Tel: +44 (0)116 252 3899
Email: sjg50(at)le.ac.uk
Office: 138, Michael Atiyah Building

 

Personal details

Employment

Education

Awards and grants

  • 1996, 1997, 1998 University of Birmingham, each annual Faculty of Science Undergraduate Prize.
  • 1999 University of Birmingham, SWJ Smith Award for "outstanding academic performance within the Faculty of Science".
  • 1999-2002 Cambridge University, Isaac Newton Trust studentship.
  • 2007 University of Leicester, Faculty of Science Travel Award.
  • 2008-2011 HEFCE Employer Engagement project.
  • 2009 University of Leicester, Faculty of Science Travel Award.
  • 2009 LMS, East Midlands Mathematical Physics seminar series workshop funding.
  • 2009-2013 EPSRC Boundary-layer transition on rotating bodies (EP/G061637/1).
  • 2012 National HE STEM Programme, Effective assessment of employability skills in written examinations
  • 2012 Innovation Fellowship, Capturing the commercial value in theoretical and computational studies of model fluid flows with engineering significance.
  • 2014 NAIS, Workshop funding.
  • 2014 Elected Fellow of the Royal Aeronautical Society.
  • 2015-2016 Senior Research Fellowship of the Royal Academy of Engineering/Leverhulme Trust.
  • 2016 Elected Senior Fellow of the Higher Education Academy.
  • 2017-2020 National lead for Special Interest Group in "boundary layers and complex rotating systems" within UK Fluids Network.

Main University of Leicester roles

  • Director of Research, Engineering
  • Director of ASDEC
  • Head of Computational Engineering & Control Research Group, Engineering
  • Deputy Director of Research, College of Science and Engineering
  • Chair of EPSRC Funder Group, College of Science and Engineering

Research

Fluid mechanics (boundary-layer stability)

  • Distinct transition mechanisms over slender vs broad rotating cones
  • Electrochemical applications of von Kármán flow
  • Generalization to aerodynamically and industrially significant flows
  • The effects of distributed roughness
  • Non-parallel effects and global instabilities
  • Non-Newtonian boundary layers

Mathematics education

  • The efficient delivery and assessment of employability skills
  • Fundamental mathematics skills for non-mathematicians

Publications

Books, chapters and thesis

  1. Garrett, S. J. 2002 'The stability and transition of the boundary layer on rotating bodies', PhD Thesis, Cambridge University. pdf
  2. Garrett, S. J. 2012 Towards an efficient approach for examining employability skills. In Mapping University Mathematics Assessment Practices, ed. Iannone, P, Simpson, A; pp 95-104. pdf
  3. Garrett, S.J. 2013 An Introduction to the Mathematics of Finance: A Deterministic Approach, Oxford: Butterworth-Heinemann/Elsevier. UK US
  4. Garrett, S.J. 2015 Introduction to Actuarial and Financial Mathematical Methods, Oxford: Academic Press/Elsevier. UK US

Peer-reviewed journal articles

  1. Garrett, S. J. & Peake, N. 2002 The stability and transition of the boundary layer on a rotating sphere, J. Fluid Mech.456, 199-218. pdf
  2. Garrett, S. J. & Peake, N. 2004 The stability of the boundary layer on a rotating sphere in a uniform axial flow, European J. Mech. B.23, 241-253. pdf
  3. Garrett, S.J. & Peake, N. 2007 The absolute instability of the boundary layer on a rotating cone, European J. Mech. B.26, 344-353. pdf
  4. Garrett, S.J., Hussain, Z. & Stephen, S.O. 2009 The crossflow instability of the boundary layer on a rotating cone, J. Fluid Mech.622, 209-232. pdf
  5. Garrett, S.J. 2010 Linear growth rates of types I & II convective modes within the rotating-cone boundary layer, Fluid Dyn. Res. 42, 025504. pdf
  6. Garrett, S.J. 2010 Vortex-speed selection within the rotating-disk boundary layer, Journal of Algorithms & Computational Technology, Vol. 4, No. 1., invited paper. pdf
  7. Garrett, S.J. 2010 Vortex-speed selection within the boundary-layer flow over a rotating sphere placed in an enforced axial flow, European J. Mech. B., 29, 84-92. pdf
  8. Garrett, S.J., Hussain, Z. & Stephen, S.O. 2010 Boundary-layer transition on broad cones rotating in an imposed axial flow, AIAA Journal, 48, No. 6., 1184-1194.   
  9. Samad, A. & Garrett, S.J. 2010 On the laminar boundary-layer flow over rotating spheroids, Int. J. Eng. Sci., 48, 2015-2027. pdf
  10. Lingwood, R.J. & Garrett, S.J. 2011 The effects of surface mass flux on the instability of the BEK system of rotating boundary-layer flows, European J. Mech. B.30, 299-310. pdf
  11. Hussain, Z., Stephen, S.O. & Garrett, S.J. 2011 The centrifugal instability of a slender rotating cone, Journal of Algorithms & Computational Technology, Vol. 6, No. 1., invited paper. pdf
  12. Hussain, Z., Garrett, S.J. & Stephen, S.O. 2011 The instability of the boundary layer over a disk rotating in an enforced axial flow, Phys. Fluids 23, 1141108. pdf
  13. Barrow, A. & Garrett, S.J. 2013 The stability and transition of the boundary-layer flow over rotating spheres with surface mass flux and incident axial flow, European J. Mech. B., 38, 93-100, DOI: 10.1016/j.euromechflu.2012.10.010. pdf
  14. Gostelow, J.P., Rona, A., De Saint Jean, M., Garrett, S.J. & McMullan, W.A. 2013 Investigations of streamwise and transverse instabilities on swept cylinders and implications for turbomachinery blading, J. Turbomach. 135(5), 051018, DOI: 10.1115/1.4007833. pdf
  15. Barrow, A., Garrett, S.J. & Peake, N. 2014 On the global linear stability of the boundary layer over a rotating sphere, European J. Mech. B., 49, 301-307, DOI: 10.1016/j.euromechflu.2014.02.012 (invited paper). pdf
  16. Griffiths, P.T., Stephen, S.O., Bassom, A.P. & Garrett, S.J. 2014 Stability of the boundary layer on a rotating disk for power-law fluids, J. Non-Newton Fluid207, 1-6. pdf
  17. Samad, A. & Garrett, S.J. 2014, On the stability of boundary-layer flow over rotating spheroids, Int. J. Eng. Sci., 82, 28-45, DOI: 10.1016/j.ijengsci.2014.04.015. pdf
  18. Hussain, Z., Garrett, S.J. & Stephen, S.O. 2014, The centrifugal instability of the boundary-layer flow over slender rotating cones, J. Fluid Mech. 775, 274-293. pdf
  19. Cooper, A.J., Harris, J.H., Garrett, S.J., Thomas, P.J. & Ozkan, M. 2015 The effect of anisotropic and isotropic roughness on the convective stability of the rotating disk boundary layer, Phys. Fluids, 27, 014107. pdf
  20. Griffiths, P.T., Garrett, S.J. & Stephen, S.O. 2014 The neutral curve for stationary disturbances on rotating disk flow for power-law fluids, J. Non-Newton Fluid 213, 73-81. pdf
  21. Towers, P.D. & Garrett, S.J. 2016 Similarity solutions of compressible flow over a rotating cone with surface suction, Thermal Science20, 2, 517-528. pdf
  22. McMullan, W.A. & Garrett, S.J., 2016 On streamwise vortices in large eddy simulations of initially laminar plane mixing layers, Int. J. Heat Fluid Fl. 59 20-32. pdf
  23. Hussain, Z., Garrett, S.J., Stephen, S.O. & Griffiths, P.T. 2016 The centrifugal instability of the boundary-layer flow over a slender rotating cone in an enforced axial free-stream, J. Fluid Mech.788, 70-94. pdf
  24. McMullan, W.A. & Garrett, S.J., 2016 The effect of initial conditions on large-scale structures in numerical simulations of plane mixing layers, Phys. Fluids28 015111 pdf
  25. Garrett, S.J., Cooper, A.J., Harris, J.H., Özkan, M., Segalini, A. & Thomas, P.J. 2016 On the stability of von Kármán rotating-disk boundary layers with radial anisotropic surface roughness, Phys. Fluids 28, 014106. pdf
  26. Alveroglu, B., Segalini, A. & Garrett, S.J. 2016 The effect of surface roughness on the convective stability of the BEK family of boundary layers, European J. Mech. B56, 178-187. pdf
  27. Özkan, M., Thomas, P.J., Cooper, A.J. & Garrett, S.J. Comparison of the effects of surface roughness and confinement on rotor-stator cavity flow, Eng. App. Comp. Fluid Dyn. 11:1, 142-158. pdf
  28. Towers, P.D., Hussain, Z., Griffiths, P. T. & Garrett, S.J. 2016 The stability of the compressible boundary-layer flows over rotating cones with surface mass flux, IMA J. Appl. Math.81, 940-960 pdf
  29. Abulameer, M.A., Griffiths, P.T., Alveroglu, B. & Garrett, S.J. 2016 On the stability of the BEK family of rotating boundary-layer flows for power-law fluids, J. Non-Newton Fluid. 236 63-72. pdf
  30. Griffiths, P.T., Garrett, S. J., Stephen, S.O. & Hussain, Z.  2017 Quantifying generalised non-Newtonian fluid behaviour in the context of three-dimensional boundary layers, European J. Mech. B., 61, 304-309, pdf
  31. Alveroglu, B., Segalini, A. & Garrett, S.J. 2017 An energy analysis of convective instabilities of the Bödewadt and Ekman boundary layers over rough surfaces, European J. Mech. B., 61, 310-315,  pdf
  32. Segalini, A. & Garrett, S.J. 2017 On the non-parallel instability of the rotating-sphere boundary layer, J. Fluid Mech., 818, 288-318. pdf
  33. Javaudin, B., Hussain, Z., Garrett, S.J., Stephen, S.O., Alveroglu, B. & Griffiths, P.T., Revisiting the convective instability of the boundary layer over broad cones, (in preparation).
  34. Culverhouse, N.A., Garrett, S.J., Stephen, S.O. & Lingwood, R.J. The effects of mass flux on convective modes within the Bödewadt layer, (in preparation).
  35. Stephen, S.O. & Garrett, S.J. Asymptotic description of the instability modes over rough rotating disks, (in preparation).
  36. Ciolfi, T., Garrett, S.J., Thomas, P.J., Cooper, A.J. & Özkan, M. On the absolute instability of the boundary-layer flow over rotating disks with isotropic surface roughness, (in preparation).
  37. Hussain, Z., Garrett, S. J., Stephen, S. O. & Griffiths, P. T. The neutral stability curve for a rotating cone in still fluid using new solution methods, (in preparation).

Peer-reviewed conference papers

  1. Garrett, S.J. & Peake, N, 2001 Absolute & convective instabilities in the boundary layer on a rotating sphere, Abstracts of the 54th Annual Meeting of the Division of Fluid DynamicsAmerican Physical Society, San Diego, CA, USA.
  2. Garrett, S.J. & Peake, N. 2007 On the global linear stability of the boundary layer on rotating bodies, Advances in Turbulence XI: Proceedings of the 11th EUROMECH European Turbulence Conference, ed. J.M.L.M Palma, A. Silva Lopes, 550-552. pdf
  3. Hussain, Z, Garrett, S.J. & Stephen, S.O. 2008 The crossflow instability of the boundary layer on a rotating cone, Book of Abstracts of 7th European Fluid Mechanics Conference, Manchester, September 14-18.
  4. Garrett, S.J., Hussain, Z. & Stephen, S.O. 2009 Boundary-layer transition on broad cones rotating in an imposed axial flow. Proceedings of the 39th AIAA Fluid Dynamics Conference, San Antonio, Tx, USA. Paper AIAA-2009-3810. pdf
  5. Di Pasquale, D., Rona, A. & Garrett, S.J. 2009 A selective review of CFD transition models, Proceedings of the 39th AIAA Fluid Dynamics Conference, San Antonio, Tx, USA. Paper AIAA-2009-3812. pdf
  6. Samad, A. & Garrett, S. J. 2009 The convective instability of boundary-layer flows over rotating spheroids, Proceedings of FEDSM2009, ASME 2009 Fluids Engineering Summer Meeting, Vail, Co, USApdf
  7. Hussain, Z., Garrett, S.J. & Stephen, S.O. 2010 Transition mechanisms over slender versus broad rotating cones, Proceedings of the 40th AIAA Fluid Dynamics Conference, Chicago, Il, USA, Paper AIAA-2010-4285pdf
  8. Garrett, S.J., Hussain, Z., Barrow, A. & Towers, P. D. 2010 Boundary-layer transition over aerodynamically-significant rotating bodies, Bulletin of the American Physical Society55, 16.
  9. Hussain, Z., Garrett, S.J., Stephen, S.O. 2010, The centrifugal instability of the boundary layer on a slender rotating cone in a forced free-stream, Bulletin of the American Physical Society55, 16.
  10. Gostelow, J.P., McMullan, W.A., Garrett, S.J., & De Saint Jean, M. 2011 The influence of streamwise vorticity on transition in the presence of sweep, Proceedings of the 41st AIAA Fluid Dynamics Conference, Honolulu, HI, USA, Paper AIAA-2011-3878. pdf
  11. Garrett, S.J. 2011 Vortex-speed selection within the transitional region of rotating boundary-layer flows, Proceedings of the 41st AIAA Fluid Dynamics Conference, Honolulu, HI, USA, Paper AIAA-2011-3885. pdf
  12. Gostelow, J.P., Rona, A., De Saint Jean, M., Garrett, S.J. & McMullan, W.A. 2012 Investigations of streamwise and transverse instabilities on swept cylinders and implications for turbomachinery blading, Proceedings of ASME Turbo Expo, Copenhagen, Denmarkpdf
  13. Towers, P. & Garrett, S.J. 2012 On the stability of the compressible boundary-layer flow over a rotating cone, Proceedings of the 42nd AIAA Fluid Dynamics Conference, New Orleans, LA, USA. pdf
  14. Harris, J.H., Garrett, S.J. & Thomas. P.J. 2012 On the stability of flows over rough rotating disks, Proceedings of the 42nd AIAA Fluid Dynamics Conference, New Orleans, LA, USA. pdf
  15. Garrett, S.J., Gostelow, J.P., McMullan, W.A., Rona, A. & De Saint Jean, M. 2012 Streamwise and crossflow instabilities on inclined circular cylinders, Proceedings of International Council of the Aeronautical Sciences 2012, ICAS 2012, Brisbane, Australiapdf
  16. Garrett, S.J., Harris, J.H. & Thomas, P.J. 2012 On the effect of surface roughness on the transition over rotor-stator devices, Proceedings of International Council of the Aeronautical Sciences 2012, ICAS 2012, Brisbane, Australiapdf
  17. Harris, J. H., Garrett, S.J. & Thomas, P.J. 2012 The stability of flows over rotating disks with distributed roughness,Book of Abstracts of 9th European Fluid Mechanics Conference, Rome, September 9-13.
  18. Gostelow, J.P., Rona, A., Garrett, S.J. & McMullan, W.A. 2013 Stationary and travelling vortical structures on swept cylinders and turbine blades, Proceedings of the 43rd AIAA Fluid Dynamics Conference, San Diego, CA, USApdf
  19. Rona, A., Garrett, S.J., & Gostelow, J.P. 2013 Some examples of stability mode persistence and change in vortex structure formation, Proceedings of the 14th European Turbulence Conference, Lyon, France. pdf
  20. Gostelow, J. P., Garrett, S. J., Rona, A. & Adebayo, D. S. 2014 Stability modes in vortex structure formation: canonical examples for rotating components, Proceedings of the 15th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-15, Honolulu, HI, USApdf
  21. Gostelow, J.P., Garrett, S.J., Rona, A. & Adebayo, D.S. 2014 Some canonical examples of streamwise vortex structure for rotating components, Proceedings of the ASME Fluids Engineering Meeting, Chicago, IL, USA. pdf
  22. Hussain, Z., Garrett, S.J. & Stephen, S.O. 2014, Centrifugal instability over a rotating cone, Proceedings of the 19th AFMC, Melbourne, Australiapdf
  23. Özkan, M., Harris, J.H., Garrett, S.J., Cooper, A.J. & Thomas, P.J. 2014, Effects of anisotropic surface roughness on the boundary-layer transition over rotating disks, Proceedings of the 10th European Fluid Mechanics Conference, Copenhagen, Denmark.to
  24. Griffiths, P.T., Stephen, S.O., Bassom, A.P. & Garrett, S.J. 2014, Stability of the boundary layer on a rotating disk for power-law fluids, Proceedings of the 10th European Fluid Mechanics Conference, Copenhagen, Denmark.
  25. Garrett, S.J. & Hussain, Z., 2014 The centrifugal stability of the boundary-layer flow over slender rotating cones, Bulletin of the American Physical Society, 67th Annual Meeting of the APD Division of Fluid Mechanics, San Francisco, CA, USA.
  26. Griffiths, P.T. & Garrett, S.J., 2014 Stability of the boundary layer on a rotating disk for power-law fluids, Bulletin of the American Physical Society, 67th Annual Meeting of the APD Division of Fluid Mechanics, San Francisco, CA, USA.
  27. McMullan, W.A. & Garrett, S.J., 2015 Streetwise vortices in plane mixing layers originating from laminar or turbulent initial conditions, Proceedings of the AIAA SciTech 2015, Kissimmee, FL, USA. 2015-1969. pdf
  28. Griffiths, P.T., Garrett, S.J. & Stephen, S.O. 2015 Delaying transition in rotating boundary-layer flow flows, Proceedings of the 45th AIAA Fluid Dynamics Conference, Dallas, TX, USApdf
  29. McMullan, W.A. & Garrett, S.J. 2015 The effect of initial conditions on streetwise vortices in the initially laminar mixing layer, Proceedings of the 45th AIAA Fluid Dynamics Conference, Dallas, TX, USApdf **Certificate of merit for best paper award: CFD visualisation showcase.
  30. Alveroglu, B., Garrett, S.J. & Segalini, A. Convective instability of the BEK flows over rough rotating disks, Proceedings of ENUMATH 2015, Ankara, Turkey.
  31. Garrett, S.J., Gostelow, J.P., Rona, A. & McMullan, W.A. 2015 Competing stability modes in vortex structure formation, Bulletin of the American Physical Society68th Annual Meeting of the APD Division of Fluid MechanicsBoston, MA, USA.
  32. Garrett, S.J., Cooper, A.J., Özkan, M. & Thomas, P.J. 2016 Towards roughness-based drag reduction, Proceedings of the 16th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-16, Honolulu, HI, USA. pdf
  33. Alveroglu, B., Segalini, A. & Garrett, S.J. 2016 An energy analysis of convective instabilities of the Bödewadt and Ekman boundary layers over rough surfaces, Proceedings of the 16th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-16, Honolulu, HI, USA. pdf
  34. Özkan, M., Thomas, P.J., Cooper, A.J. & Garrett, S.J. Roughness-based laminar-flow control for boundary layers with a cross-flow component, to appear in Proceedings of 11th European Fluid Mechanics Conference, Seville, Spain.
  35. Miller, R., Griffiths, P.T. & Garrett, S.J., Model flows for CVD: enforced axial flow and temperature dependent viscosity, submitted to Proceedings of the 17th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-17, Lahaina, HI, USA.
  36. Garrett, S.J. & Thomas, P.J. Towards roughness-based drag reduction in cross-flow dominated flows, submitted to Rotating Flow Workshop, TU Darmstadt, Germany.

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