RESEARCH INTERESTs

Professor Steve Armfield investigates the fluid mechanics of a range of environmental and industrial flows using computational, theoretical and experimental approaches, leading to applications as diverse as improved river management and the design of more efficient building ventilation systems.

"My main focus is on the development of computational models and algorithms to allow the prediction of highly unsteady, buoyancy-driven and -dominated flows, such as the natural convection boundary layers that develop adjacent to vertical heated surfaces, the two-layer mixing flow that occurs when a lighter fluid passes over a denser fluid, and thermal fountains and plumes.

"Such flows occur in many environmental and industrial settings, such as in rivers, estuaries and atmospheric boundary layers, and in building heating, cooling and ventilation.

"My research has made a substantial contribution to the understanding of the mechanism of flow initiation and transition, and has led to improved computational models for these flows that will inform the development of river management strategies, large-scale fluid dynamics models and the design of heating, ventilation and cooling systems.

"I joined the academic staff of the University of Sydney in 1996, having previously completed my PhD here. I was Head of the School of Aerospace, Mechanical and Mechatronic Engineering from 2008 till 2015. I have held academic positions at other Australian universities as well as research positions in Japan and the US."

FUNDED RESEARCH

  • GRANT
    In-situ investigation of dissolved oxygen fluxes in weir pools and rivers
    Australian Research Council (ARC)1 Jul 2025
    People funded by this grant:
  • GRANT
    Large Scale Natural Convection Boundary Layers with Non-Boussinesq Effects
    Australian Research Council (ARC)1 Jun 2022 - 30 Jun 2026
    People funded by this grant:
  • GRANT
    Dynamics of Suppressed Mixing Regimes in Australian Rivers
    Australian Research Council (ARC)1 Jan 2022
    People funded by this grant:
  • GRANT
    Entrainment and Mixing in Turbulent Negatively Buoyant Jets and Fountains
    Australian Research Council (ARC)1 Apr 2016 - 31 Dec 2020
    People funded by this grant:
  • GRANT
    Tomographic Particle Image Velocimetry
    DVC Research1 Jan 2016
    People funded by this grant:
  • GRANT
    Thermal stratification, overturning and mixing in riverine environments
    Australian Research Council (ARC)24 Apr 2015 - 31 Dec 2019
    People funded by this grant:
  • GRANT
    Conjugate natural convection boundary layers
    Australian Research Council (ARC)14 Jun 2013 - 31 Dec 2017
    People funded by this grant:
  • GRANT
    The Dynamics of Turbulent Entrainment in Sheared Convective Boundary Layers
    Australian Research Council (ARC)1 Jul 2011 - 30 Jun 2016
    People funded by this grant:
  • GRANT
    Design tools for optimising data centre layout to minimise energy usage
    Australian Research Council (ARC)20 May 2010 - 31 Dec 2015
    People funded by this grant:
    • Groenhout N,
    • Groenhout N,
    • Behnia M,
    • Nagarathinam S,
    • Armfield S
  • GRANT
    A high performance computing cluster and storage for the INTERSECT Consortium of NSW
    Australian Research Council (ARC)1 Jan 2009 - 31 Dec 2009
    People funded by this grant:
    • Botten LC,
    • Armfield S
  • GRANT
    Investigation and optimisation of displacement ventilation and cooling systems
    Australian Research Council (ARC)1 Jan 2009 - 31 Dec 2014
    People funded by this grant:
  • GRANT
    Transport by Natural Convection in Reservoir Sidearms
    Australian Research Council (ARC)1 Jan 2008 - 31 Dec 2010
    People funded by this grant:
  • GRANT
    Transport by Natural Convection in Reservoir Sidearms
    Australian Research Council (ARC)1 Jan 2008
    People funded by this grant:
  • GRANT
    Stability, transition and heat transfer in thermally coupled natural convection boundary layers
    Australian Research Council (ARC)1 Jan 2006 - 8 Jun 2010
    People funded by this grant:
    • Patterson J,
    • Armfield S,
    • Patterson JC
  • GRANT
    Freshing, mixing and purging of riverine saline ponds by freshwater overflow
    Australian Research Council (ARC)1 Jan 2005 - 31 Dec 2010
    People funded by this grant:
  • GRANT
    Turbulent fountains in stratified fluids with opposing buoyancy flux
    Australian Research Council (ARC)1 Jan 2005 - 21 Nov 2008
    People funded by this grant:
    • McBain G,
    • Lin W,
    • Armfield S,
    • Asaeda T
  • GRANT
    Investigation of a novel fan
    Australian Research Council (ARC)1 Jan 2004
    People funded by this grant:
    • Armfield S,
    • Auld D
  • GRANT
    Linkage 2004 Round One - Investigation of a Novel Fan
    De Rolfe Pty Ltd1 Jan 2004
    People funded by this grant:
    • Rollo J,
    • Armfield S
  • GRANT
    Matching oars to rowers
    Australian Research Council (ARC)1 Jan 2004
    People funded by this grant:
    • Armfield S,
    • Randell A,
    • Randell A,
    • Smith R
  • GRANT
    Matching Oars to Rowers LP0454205
    Croker Oars Pty Ltd1 Jan 2004
    People funded by this grant:
    • Armfield S,
    • Smith R
  • GRANT
    Enhancement of Heat Transfer by Stimulated Transition to Turbulence in Natural Convection Boundary Layers on Heated Walls
    Australian Research Council (ARC)1 Jan 2003 - 13 Nov 2006
    People funded by this grant:
    • Armfield S,
    • Patterson JC
  • GRANT
    Simulation and Analysis of Buoyant Horizontal Jets
    Australian Research Council (ARC)1 Jan 2001
    People funded by this grant:
    • Armfield S
  • GRANT
    Stability and Transition of Natural Convection Boundary Layers
    Australian Research Council (ARC)1 Jan 2001
    People funded by this grant:
    • Armfield S
  • GRANT
    Regulation of endothelial cell apoptosis by oscillatory shear stress
    Dental Board of NSW1 Jan 2000
    People funded by this grant:
    • Zoellner H,
    • Armfield S,
    • Gue S