Career

• 1992-1994: Post-doctoral research fellow for the Japan-Canada Project in Weather and Climate of the Arctic, Department of Physics, University of Toronto
• 1992-1993: Senior Visitor, Department of Engineering Science, Hokkaido University
• 1995-1999: Lecturer, Department of Mathematics, University of Bristol
• 1999-2001: Assistant Professor of Environmental Engineering, Department of Mechanical and Aerospace Engineering, Irwin and Joan Jacobs School of Engineering, University of California, San Diego
• 2001-2005: Associate Professor (with tenure) of Environmental Engineering, Department of Mechanical and Aerospace Engineering, Irwin and Joan Jacobs School of Engineering, University of California, San Diego
• 2004-2005: Visiting Researcher (Poste Rouge au CNRS) in the Hydrodynamics Laboratory, (LaDyHX) Ecole Polytechnique-CNRS
• 2005-9: University Lecturer in Fluid Flow, BP Institute and the Department of Applied Mathematics and Theoretical Physics, University of Cambridge
• 2009-13: University Senior Lecturer in Fluid Flow, BP Institute and the Department of Applied Mathematics and Theoretical Physics, University of Cambridge
• 2013-15: Reader in Environmental and Industrial Fluid Dynamics, BP Institute and the Department of Applied Mathematics and Theoretical Physics, University of Cambridge
• 2015-: Professor of Environmental and Industrial Fluid Dynamics, BP Institute and the Department of Applied Mathematics and Theoretical Physics, University of Cambridge
• 2020-: Head of Department of Applied Mathematics and Theoretical Physics, University of Cambridge
• 2005-: Fellow and College Lecturer in Mathematics, Churchill College, University of Cambridge

Research

• stratified flows
• turbulent mixing processes
• Generalised flow instability and transition
• turbulent plumes
• building ventilation