Modeling Granular Materials as Compressible Non-Linear Fluids: Heat Transfer Boundary Value Problems
Journal Article
·
· Mathematical Problems in Engineering
We discuss three boundary value problems in the flow and heat transfer analysis in flowing granular materials: (i) the flow down an inclined plane with radiation effects at the free surface; (ii) the natural convection flow between two heated vertical walls; (iii) the shearing motion between two horizontal flat plates with heat conduction. It is assumed that the material behaves like a continuum, similar to a compressible nonlinear fluid where the effects of density gradients are incorporated in the stress tensor. For a fully developed flow the equations are simplified to a system of three nonlinear ordinary differential equations. The equations are made dimensionless and a parametric study is performed where the effects of various dimensionless numbers representing the effects of heat conduction, viscous dissipation, radiation, and so forth are presented.
- Research Organization:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
- Sponsoring Organization:
- USDOE - Office of Fossil Energy (FE)
- OSTI ID:
- 912705
- Report Number(s):
- DOE/NETL-IR-2007-031
- Journal Information:
- Mathematical Problems in Engineering, Journal Name: Mathematical Problems in Engineering Journal Issue: aritcle ID 56046 Vol. 2006
- Publisher:
- Hindawi Publishing Corporation
- Country of Publication:
- United States
- Language:
- English
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