Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/66301
 Type: Conference paper Title: Numerical computation of turbulent gas-particle flow in a 90 degree bend: comparison of two particle modelling approaches Author: Tian, Z. Citation: Proceedings Computational Techniques and Applications Conference: pp.C741-C758 Issue Date: 2007 ISSN: 1446-18111446-8735 Conference Name: Biennial Computational Techniques and Applications Conference (13th : 2006 : Townsville, Queensland) Statement ofResponsibility: K. Mohanarangam, Z. F. Tian and J. Y. Tu Abstract: A numerical study into the physical characteristics of dilute gas-particle flows over a square-sectioned $90^\circ$~bend is reported. Two approaches, namely the Lagrangian particle tracking model and Eulerian two fluid model are employed to predict the gas-particle flows. Renormalization Group based $k$-$\epsilon$ model is used as the turbulent closure for both the approaches; however, for the Eulerian model, additional transport equations are solved to account for the combined gas-particle interactions and the turbulence kinetic energy of the particulate phase. In comparison to both Eulerian-Eulerian and Eulerian-Lagrangian approaches the former was found to yield closer agreement with the measured values. The Eulerian-Lagrangian approach obtains finer details of the behaviour of particles, while Eulerian-Eulerian model can be used for industrial scale problems. All the simulated results are compared against the experimental finding of Kliafas and Holt (1987). Description: Also published as a journal article in: ANZIAM Journal, 2006; 48 (Electronic supplement) 2006-7:C741-C758 Rights: © Austral. Mathematical Soc. 2007 RMID: 0020107890 Description (link): http://journal.austms.org.au/ojs/index.php/ANZIAMJ/issue/view/9 Published version: http://journal.austms.org.au/ojs/index.php/ANZIAMJ/article/view/69/248 Appears in Collections: Mechanical Engineering publications

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