Speaker: Dr Roeland de Kat, Aerodynamics and Flight Mechancis Research Group, Engineering and the Environment, University of Southampton
Research Centre: Turbulence and Flow Control Research Group
Title: Pressure from Particle Image Velocimetry
Pressure is a key variable of interest in fluid mechanics. However, measurement of this quantity has been limited to point and surface measurements and alternative methods are needed. Therefore, I have developed several techniques to derive pressure from particle image velocimetry (PIV) data. These techniques were validated on various synthetic flows and applied to different experimental datasets. I will discuss the techniques based on time-resolved stereoscopic-PIV in unsteady (predominantly) 2D flow and time-resolved tomographic-PIV flow in unsteady 3D flow (de Kat & van Oudheusden 2012, de Kat 2012). Using knowledge of the flow itself, these techniques can be simplified and time-resolved stereoscopic-PIV or snapshot tomographic-PIV can be applied to obtain pressure in 3D convective turbulent flows (de Kat & Ganapathisubramani 2013, Laskari et al. 2016). If the flow itself is predominantly 2D, one can even determine average pressure and pressure fluctuations from snapshot planar-PIV.
Roeland obtained his engineering degree and doctorate in the Aerodynamics group at Aerospace engineering, Delft University of Technology. In May 2011, he joined the University of Southampton to work on turbulent shear flows as a research fellow and, since May 2014, Roeland is a Leverhulme Trust Early Career Fellow and develops advanced flow diagnostic tools to further our understanding of feathered flight
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When and where
3.00pmFriday 2nd December 2016