D.A.Johnson - Professor

David A. Johnson - BEng, MEng, PhD (McMaster), PEng

Contact Information

Phone: (519) 888-4567 Ext.33690

Fax: (519) 885-5862

Office: E3-2135D

Email:da3johns@uwaterloo.ca

Current Research Interests

  • Wind Energy and Wind Turbines
  • Large Scale PIV and Measurement Techniques
  • Development and Application of Particle Image Velocimetry (PIV) to Flows
  • Incompressible Flow Turbomachinery (Turbines, Fans and Pumps)
  • Fan Design and Testing
  • Pump Design and Testing
  • Jet and Nozzle Flows
  • Publications on Google

Background - Professor Johnson

David A. Johnson is an Ontario professional engineer (P.Eng.), and a Professor in the Department of Mechanical and Mechatronics Engineering at the University of Waterloo, Waterloo, Canada.

Currently he leads the Wind Energy Research Group (WEG) at UWaterloo, supervises researchers in Wind Energy and teaches Wind Energy courses at the graduate level.

He founded the Wind Energy Laboratory at UWaterloo which undertakes research focused on wind turbine aerodynamics and aeroacoustics (noise).

He has lectured and published widely on measurement techniques for wind turbine aerodynamics, the performance of turbine airfoils and developed innovative aeroacoustic measurement techniques for wind turbines.

He was recently appointed to the Council of Canadian Academies Expert Panel on Wind Turbine Noise and Human Health and the executive summary is available for download Understanding the Evidence: Wind Turbine Noise Executive Summary

The complete assessment is available for download Understanding the Evidence: Wind Turbine Noise

The Group operates a large grid-connected turbine for research and has developed many full scale and model turbine systems including a 30 kW turbine, a 3kW turbine for studies in a world-class indoor test facility, and hybrid wind/PV/battery systems.

He leads a project bringing wind energy to remote, off-grid, diesel-dependent communities in northern Canada.

He is part of the cross-Canada NSERC supported Wind Energy Strategic Network (WESNet) where the Waterloo WEG has completed large scale wind turbine measurements.

He has been involved in renewable energy research in Canada and Denmark since working at Ontario Hydro Research Division in the late 1980s.

Publications

Here is a brief listing of general papers and presentations

  • Recent Publications and Presentations
  • Here is a brief listing of papers and presentations made by the Wind Energy Group.

    • Incompressible Flow Turbomachinery
    • Pump Internal Velocity Measurements
    • Fan Design and Performance measurement
    • Experimental and Numerical Studies of Turbulent Recirculating Flows

    Teaching

    • ME 351 - Fluid Mechanics 1
    • ME 563 - Turbomachines
    • Graduate Course - ME 765 - Wind Energy