Saridakis, I.Lau, T.Djenidi, L.Nathan, G.2019-05-052019-05-052014Proceedings of the 19th Australasian Fluid Mechanics Conference, 2014, pp.1-4978-0-646-59695-2http://hdl.handle.net/2440/118757Paper no. 283An error analysis is reported of a method to discriminate between the tracer particles used to mark the carrier-phase and the suspended particles in a two-phase flow for particle image velocimetry. The discrimination was obtained through application of a median-filter to two-phase image pairs, generated artificially by a Monte Carlo simulation. A Lamb–Oseen vortex was selected as the simulated flow for both the gas- and solidphases, as it provides a range of velocities within the simulated field. The rotational velocities of both phases were selected to be different, allowing a range of slip velocities to be analysed. Simulations were executed with a range of particle and tracer volumetric loadings, particle sizes and filter widths. This analysis provides much more detail than was previously available on the conditions for which a median filter will accurately discriminate between tracers and larger particles in a real flow.enCommencing with 19AFMC, the Society holds copyright to papers which appear in the Proceedings. Prior to that, copyright resides with authors of the papers.Conference paper00300307162-s2.0-84959099023190070Lau, T. [0000-0003-1851-706X]Nathan, G. [0000-0002-6922-848X]