Kittipoomwong, Prakorn and See, Howard and Mai-Duy, Nam (2010) Dynamic simulation of non-spherical particulate suspensions. Rheologica Acta, 49 (6). pp. 597-606. ISSN 0035-4511
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Text (Accepted Version)
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Abstract
Particle-level simulation has been employed to investigate rheology and microstructure of nonspherical particulate suspensions in a simple shear flow. Non-spherical particles in Newtonian fluids are modeled as three-dimensional clusters of neutrally buoyant, non-Brownian spheres linked together by Hookeantype constraint force. Rotne–Prager correction to velocity disturbance has been employed to account for far-field hydrodynamic interactions. An isolated rodlike particle in simple shear flow exhibits a periodic orientation distribution, commonly referred to as Jeffery orbit. Lubrication-like repulsive potential between
clusters have been included in simulation of rod-like
suspensions at various aspect ratios over dilute to semidilute volume fractions. Shear viscosity evaluated by
orientation distribution qualitatively agrees with one
obtained by direct computation of shear stress.
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| Item Type: | Article (Commonwealth Reporting Category C) |
|---|---|
| Refereed: | Yes |
| Item Status: | Live Archive |
| Additional Information: | Author version deposited in accordance with the copyright policy of the publisher. |
| Faculty/School / Institute/Centre: | Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering (Up to 30 Jun 2013) |
| Faculty/School / Institute/Centre: | Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering (Up to 30 Jun 2013) |
| Date Deposited: | 13 Mar 2011 12:11 |
| Last Modified: | 03 Aug 2014 03:05 |
| Uncontrolled Keywords: | particle-level simulation; fiber; suspension rheology |
| Fields of Research (2008): | 09 Engineering > 0904 Chemical Engineering > 090408 Rheology 09 Engineering > 0915 Interdisciplinary Engineering > 091504 Fluidisation and Fluid Mechanics 09 Engineering > 0913 Mechanical Engineering > 091307 Numerical Modelling and Mechanical Characterisation |
| Fields of Research (2020): | 40 ENGINEERING > 4012 Fluid mechanics and thermal engineering > 401212 Non-Newtonian fluid flows (incl. rheology) 40 ENGINEERING > 4012 Fluid mechanics and thermal engineering > 401299 Fluid mechanics and thermal engineering not elsewhere classified 40 ENGINEERING > 4017 Mechanical engineering > 401706 Numerical modelling and mechanical characterisation |
| Socio-Economic Objectives (2008): | E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering |
| Identification Number or DOI: | https://doi.org/10.1007/s00397-009-0412-6 |
| URI: | http://eprints.usq.edu.au/id/eprint/18251 |
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