When: Thursday 16th of February, 1pm AEDT
Where: This seminar will be partially presented at the Rose Street Seminar area (J04) and partially online via Zoom, RSVP here.
Speaker: Nicholas Lawson (University of Sydney)
Title: The Application of Optical Diagnostic Techniques and Data Processing to Aerodynamic and Airborne Environments
This presentation will describe research on the application of optical diagnostic techniques and data processing to aerodynamic and airborne environments. Several different processing techniques will be described including image correlation methods and post-processing techniques, which are used to extend the dynamic range of a fibre optic pressure and strain sensors. The work will also provide background to the techniques, in terms optimisation of dynamic range and correction of sensor temperature.
Applications include measurement of full-scale flow fields inside an ambulance, wind tunnel and in-flight pressure and strain measurement, and the wake interaction of a light aircraft structure during aerodynamic stall. In all cases, the challenges of measurement in these environments will be discussed.
Associate Professor Nick Lawson joined the Department of Aeronautical Engineering at the University of Sydney in Oct21, after 22 years in the School of Aerospace at Cranfield University. Over this period, he was Head of National Flying Laboratory Centre for 5 years and held a Chair in Aerodynamics and Airborne Measurement. Nick holds a Commercial Pilots Licence, with over 2500 hours of flying. He is a Chartered Engineer, a Fellow of the Royal Aeronautical Society, and a member of the Society of Flight Test Engineers.
Nick has extensive experience in laser and fibre optic flow diagnostic methods, applied in wind tunnel and airborne environments. These applications have included high speed, large scale, non-Newtonian and multi-phase flows. His PhD with Rolls-Royce plc (RR) applied PIV to supersonic flows, and his post-doc was at the University of Melbourne developing a PIV and LDA diagnostics lab. Recent work has also involved RR, Airbus UK and Meggitt, as well as EU partners, including DLR, TNO and TU Delft. His current research continues to focus is on advanced instrumentation for aerodynamic measurement, where fibre optic sensors are a key part of this work.