Monte Carlo simulations of a median-filter technique to discriminate between particle and fluid velocity fields
Date
2014
Authors
Saridakis, I.
Lau, T.
Djenidi, L.
Nathan, G.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Conference paper
Citation
Proceedings of the 19th Australasian Fluid Mechanics Conference, 2014, pp.1-4
Statement of Responsibility
I.J. Saridakis, T.C.W. Lau, L. Djenidi and G.J. Nathan
Conference Name
Australasian Fluid Mechanics Conference (AFMC) (8 Dec 2014 - 11 Dec 2014 : Melbourne, Australia)
Abstract
An 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.
School/Discipline
Dissertation Note
Provenance
Description
Paper no. 283
Access Status
Rights
Commencing with 19AFMC, the Society holds copyright to papers which appear in the Proceedings. Prior to that, copyright resides with authors of the papers.