کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
239089 | 465795 | 2007 | 17 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Conduction and dissipation in the shearing flow of granular materials modeled as non-Newtonian fluids Conduction and dissipation in the shearing flow of granular materials modeled as non-Newtonian fluids](/preview/png/239089.png)
After providing a brief review of the constitutive modeling of the stress tensor for granular materials using non-Newtonian fluid models, we study the flow between two horizontal flat plates. It is assumed that the granular media behaves as a non-Newtonian fluid (of the Reiner–Rivlin type); we use the constitutive relation derived by Rajagopal and Massoudi [Rajagopal, K. R. and M. Massoudi, “A Method for measuring material moduli of granular materials: flow in an orthogonal rheometer,” Topical Report, DOE/PETC/TR-90/3, 1990] which can predict the normal stress differences. The lower plate is fixed and heated, and the upper plate (which is at a lower temperature than the lower plate) is set into motion with a constant velocity. The steady fully developed flow and the heat transfer equations are made dimensionless and are solved numerically; the effects of different dimensionless numbers and viscous dissipation are discussed.
It is assumed that the granular media behaves as a non-Newtonian fluid as derived by Rajagopal and Massoudi (1990). The lower plate is fixed and heated, and the upper plate is set into motion with a constant velocity. The steady fully developed flow and the heat transfer equations are made dimensionless and are solved numerically.Figure optionsDownload as PowerPoint slide
Journal: Powder Technology - Volume 175, Issue 3, 15 June 2007, Pages 146–162